Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to anywhere in the world.Find cheap flights to Washington with Google Flights. Explore popular destinations in Washington and book your flight.Direct. from $84. San Jose Cabo.$97 per passenger.Departing Wed, May 22.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, May 22, arriving in San Jose Cabo.Price includes taxes and charges.From $97, select. San Jose Cabo Mexico.1 stop. from $228. Washington, D.C..$243 per passenger.Departing Tue, Jun 4, returning Tue, Jun 11.Round-trip flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines ...$66 Search for cheap flights deals from DCA to SEA (Ronald Reagan Washington National to Seattle - Tacoma Intl.). We offer cheap direct, non-stop flights including one way and roundtrip tickets. ... Amazing DCA to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $110 round …fly for about 4.5 hours in the air. 9:48 pm (local time): Ronald Reagan Washington National (DCA) Washington, DC is 3 hours ahead of Seattle. so the time in Seattle is actually 6:48 pm. taxi on the runway for an average of 5 minutes to the gate. 9:53 pm (local time): arrive at the gate at DCA. deboard the plane, and claim any baggage.Cheap Flights from Seattle to New York (SEA-JFK) Prices were available within the past 7 days and start at $118 for one-way flights and $225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to New York with no change fee on selected flights. Pasco/Kennewick to Washington Flights. Departing Jun 04 - Jun 10, 2024. Main Cabin $538. Book. It's the proud capital of the United States of America, a fact that’s abundantly clear every time you visit its glorious monuments. Drive along the Potomac River, take in the majestic Lincoln Memorial, marvel at the stunning simplicity of the ... 1 stop. from £129. Seattle. £145 per passenger.Departing Tue, 19 Mar, returning Tue, 26 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 19 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs ...$129 Search for cheap flights deals from IAD to SEA (Washington Dulles Intl. to Seattle - Tacoma Intl.). We offer cheap direct, non-stop flights including one way and roundtrip tickets. ... Amazing IAD to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $239 round trip and $129 one way. Prices ... Each day, there are between 4 and 5 nonstop flights that take off from Seattle and land in Raleigh, with an average flight time of 5h 06m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 34 flights. The most frequent day of departure is Saturday, when 15% of all weekly flights depart. There are 5 airlines that fly nonstop from Seattle to Chicago. They are: Alaska Airlines, American Airlines, Delta, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $98 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines. Cheap Flights from Washington to Omaha (DCA-OMA) Prices were available within the past 7 days and start at $80 for one-way flights and $114 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Washington to Omaha with no change fee on selected flights.Cheap Flights from Seattle (SEA) to Washington (DCA) Prices were available within the past 7 days and start at AU$146 for one-way flights and AU$423 for round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.The average flying time for a direct flight from Washington DC, DC to Seattle is 5 hours 57 minutes Most direct flights leave around 8:00 EDT Korean Air flight #1 is today's earliest flight from Washington DC, DC to Seattle (8:00 EDT, Boeing 737-800 (winglets) pax)Carriers which have flown such direct red eye flights from Seattle may include: Alaska Airlines departing SEA around 9:25pm and arriving IAD around 5:30am. United Airlines departing SEA around 11:30pm and arriving IAD around 7:17am. Example departure times listed are local to origin airport time zone, and arrival times are local to destination. Cheap Flights from Seattle to Washington (SEA-IAD) Prices were available within the past 7 days and start at $139 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Washington with no change fee on selected ... Find cheap flights from Seattle (SEA) to Washington, D.C. (IAD) with United Airlines. Compare prices, dates, and fares for roundtrip or one-way tickets and book …Find low fares to top destinations on the official Southwest Airlines website. Book flight reservations, rental cars, and hotels on southwest.com.Cheap Flights from Seattle to Reagan Washington from $135 | (SEA - DCA) - KAYAK. SEA - DCA. Find cheap flights from Seattle to Reagan Washington National Airport from …All dates and times are local for the airport listed. Gates and times are subject to change. For the most current information, check the airport monitors. Search for a topic... Find the flight status for a specific Delta Air Lines flight and receive real-time notifications via …Cheap Flights from Boston to Seattle (BOS-SEA) Prices were available within the past 7 days and start at $125 for one-way flights and $226 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to Seattle with no change fee on selected flights.Tips to get cheap flights from Seattle to Washington Dc. Try to book your flight at least 21 days in advance in order to some flight deals which suit your budget. It is recommended to travel on weekdays to avoid weekend surcharges. Avoid flying in heavy traffic by booking your flight before or after major holidays.Cheap Flights from Seattle (SEA) to Washington (DCA) Prices were available within the past 7 days and start at AU$146 for one-way flights and AU$423 for round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply. Connecting flights between Seattle, WA and Washington, DC. Here is a list of connecting flights from Seattle, Washington to Washington, District of Columbia. This can help you find a one-stop flight with the shortest layover time. We found a total of 2 flights to Washington, DC with one connection: Airline routes; Delta Air Lines SEA to SLC to BWI The best way to get from Seattle to Washington, DC is to fly which takes 7h 19m and costs $120 - $490. Alternatively, you can train, which costs $120 - $850 and takes 2 days 16h. Mode details What is the time difference between Seattle and Washington, DC? Washington, DC is 3h ahead of Seattle. ...The best way to get from Seattle to Washington, DC is to fly which takes 7h 19m and costs $120 - $490. Alternatively, you can train, which costs $120 - $850 and takes 2 days 16h. Mode details What is the time difference between Seattle and Washington, DC? Washington, DC is 3h ahead of Seattle. ...Tips to get cheap flights from Seattle to Washington Dc. Try to book your flight at least 21 days in advance in order to some flight deals which suit your budget. It is recommended to travel on weekdays to avoid weekend surcharges. Avoid flying in heavy traffic by booking your flight before or after major holidays.Roundtrip. Wed, May 8 - Sat, May 11.Discover fabulous offers and cheap airfare on flights to Seattle from major cities around the world. Call us 24/7 at 1-845-848-0154 to Get Cheap Flights! Flights. Packages.Airfares from $85 One Way, $150 Round Trip from Washington to Seattle. Prices starting at $150 for return flights and $85 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Sun, May 5 - Fri, May 17. DCA. Washington. Each day, there are between 4 and 5 nonstop flights that take off from Seattle and land in Raleigh, with an average flight time of 5h 06m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 34 flights. The most frequent day of departure is Saturday, when 15% of all weekly flights depart. Search and compare first class flight deals to Washington, D.C.. Fly from Boston from $319. Book your first class tickets to Washington, D.C..This month, there are 26,970 flights arriving at Seattle / Tacoma Airport, which are 899 flights per day or 37 flights per hour. On an average day, there is at least 1 flight arriving every 2 minutes. The most frequently departed flights to Seattle / Tacoma are routes from Portland (PDX) in United States and Phoenix (PHX), also in United States.60,000 Bonus Miles. Online-only offer. Offers vary elsewhere. Search Alaska Airlines flight schedules & timetables. Find flight departure & arrival times for all Alaska Airlines flights. View airline flight schedules now.Apr 15, 2019 · Save 100% on your flight. $2,246. $1,481. per person. Mar 20 - Mar 27. Roundtrip non-stop flight included. Seattle (SEA) to Washington (DCA) The public flight service to the community began in 2018 to serve the mining industry in the region, but was cut in 2020. Four years later, some residents want the …Jan 5, 2024 · 1 stop. from $228. Washington, D.C..$243 per passenger.Departing Tue, Jun 4, returning Tue, Jun 11.Round-trip flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines ... Find flights to Washington, D.C. from £111. Fly from Seattle on Delta, Alaska Airlines, Sun Country Air and more. Search for Washington, D.C. flights on KAYAK now to find the best deal. Lowest fares from Washington, D.C. to Seattle. Searching for cheap flights from Washington, D.C. to Seattle? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today.1 stop. from $209. Washington, D.C..$227 per passenger.Departing Wed, Aug 21, returning Wed, Sep 4.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, Aug 21, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departing ...Mr Sunak warned MPs and peers he expected them to sit through the night on Monday to ensure the Safety of Rwanda Bill passes Credit: Jason Alden/Bloomberg. …Roundtrip. Wed, May 8 - Sat, May 11.Airport information for your flight from Seattle (SEA) Seattle–Tacoma InternationalAirport (SEA), often referred to as Sea-Tac, is located 12 miles (19 km) south of the city center. Access free airport Wi-Fi while waiting to board your flight from Seattle. The Seattle Airport has a United Club℠ location.Find flights from Seattle, WA to Washington, DC from $121 (€105). Compare prices, find the best direct flights and book your ticket with Omio today! All flight schedules from Seattle Tacoma International , Washington , USA to Washington Dulles International , Virginia , USA . This route is operated by 3 airline (s), and the flight time is 6 hours and 00 minute. The distance is 2313 miles. Flight deals from Seattle to Washington Dulles. Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Washington Dulles? Find the lowest prices on one …The cheapest flights to Washington Dulles Intl. found within the past 7 days were $257 round trip and $159 one way. Prices and availability subject to change. Additional terms may apply. Fri, Apr 19 - Tue, Apr 23. SEA. Seattle. IAD. Washington.The total straight line flight distance from Seattle, WA to Washington, DC is 2,327 miles. This is equivalent to 3 745 kilometers or 2,022 nautical miles. Your trip begins in Seattle, Washington. It ends in Washington, District of Columbia. Your flight direction from Seattle, WA to Washington, DC is East (88 degrees from North).Use Google Flights to plan your next trip and find cheap one way or round trip flights from Miami to Seattle. Find the best flights fast, track prices, and book with confidence.60,000 Bonus Miles. Online-only offer. Offers vary elsewhere. Search Alaska Airlines flight schedules & timetables. Find flight departure & arrival times for all Alaska Airlines flights. View airline flight schedules now. $139 Cheap Delta flights Seattle (SEA) to Washington (IAD) Prices were available within the past 7 days and start at $139 for one-way flights and $251 for round trip, for the period specified. There are 25 weekly flights from Washington, D.C. (Reagan National) to Seattle/Tacoma on Southwest Airlines. What day has the lowest fares from Washington, D.C. (Reagan National) to Seattle/Tacoma? To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) to Seattle/Tacoma with Southwest, check out our Low Fare …Cheap flights from Seattle to Washington, D.C. Round-trip. expand_more. 1 Passenger. expand_more. From. To. Departure. Apr 27, 2024. today. Return. May 4, 2024. today. …Book a Spirit Flight from Seattle (SEA) and Enjoy Our New Fleet! Save Huge with Ultra Low Cost Flights and Start Packing! ... Baltimore, MD / Washington DC AREA (BWI) Depart 06/24/2024. One Way / Economy. Fares From. $167* Viewed 4 hours ago. Book now. Seattle (SEA) to. Dallas (DFW) Depart 05/28/2024. One Way / Economy. Fares … There are 15 weekly flights from Seattle/Tacoma to Washington, D.C. (Dulles) on Southwest Airlines. What day has the lowest fares from Seattle/Tacoma to Washington, D.C. (Dulles)? To find the lowest fares by day and time to fly Seattle/Tacoma to Washington, D.C. (Dulles) with Southwest, check out our Low Fare Calendar. Jan 5, 2024 · 1 stop. from $228. Washington, D.C..$243 per passenger.Departing Tue, Jun 4, returning Tue, Jun 11.Round-trip flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines ... There are 3 airlines that fly nonstop from Portland to Washington, D.C.. They are: Alaska Airlines, Spirit Airlines and United Airlines. The cheapest price of all airlines flying this route was found with Spirit Airlines at $121 for a one-way flight. On average, the best prices for this route can be found at Spirit Airlines.Book cheap flights to Washington, D.C. (IAD) with United Airlines. Enjoy all the in-flight perks on your Washington, D.C. flight, including speed Wi-Fi. ... From Seattle (SEA) To Washington, D.C. (IAD) Roundtrip | Economy: 06/04/24 - 06/11/24: from. $ 277* Viewed: 1 day ago. From New York/Newark (EWR) To Washington, D.C. (IAD) Roundtrip ... On average, a flight to Washington, D.C. costs $357. The cheapest price found on KAYAK in the last 2 weeks cost $19 and departed from Detroit Metropolitan Wayne County Airport. The most popular routes on KAYAK are Los Angeles to Washington, D.C. which costs $394 on average, and Raleigh to Washington, D.C., which costs $629 on average. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Los Angeles. Find the best flights fast, track prices, and book with confidence.Cheap Flights from Seattle to Manila (SEA-MNL) Prices were available within the past 7 days and start at $487 for one-way flights and $799 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Manila with no change fee on selected flights.Find Deal. mar., may. 21 - mar., may. 28. 5:42 pm - 7:32 pm ATL - BWI. 1h 50m nonstop. 9:52 am - 12:02 pm BWI - ATL. 2h 10m nonstop. $43 Frontier. Find Deal. mar., may. 7 - …$66 Search for cheap flights deals from DCA to SEA (Ronald Reagan Washington National to Seattle - Tacoma Intl.). We offer cheap direct, non-stop flights including one way and roundtrip tickets. ... Amazing DCA to SEA Flight Deals. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $110 round … Pasco/Kennewick to Washington Flights. Departing Jun 04 - Jun 10, 2024. Main Cabin $538. Book. It's the proud capital of the United States of America, a fact that’s abundantly clear every time you visit its glorious monuments. Drive along the Potomac River, take in the majestic Lincoln Memorial, marvel at the stunning simplicity of the ... The best way to get from Seattle to Washington, DC is to fly which takes 7h 19m and costs $120 - $490. Alternatively, you can train, which costs $120 - $850 and takes 2 days 16h. Mode details What is the time difference between Seattle and Washington, DC? Washington, DC is 3h ahead of Seattle. ...Cheap Seattle to Delaware flights in April & May 2024. Check out some of the best flight deals from Seattle to Delaware in 2024. Check back regularly for other flight deals. vie. 5/17 10:24 pm SEA - PHL. 1 stop 28h 10m Frontier.Lowest fares from Washington, D.C. to Seattle. Searching for cheap flights from Washington, D.C. to Seattle? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today.Flights from Seattle to Washington, D.C.. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Washington, D.C.. Find the... Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. Find the best flights fast, track prices, and book with confidence ... Flight to Butte, MT; Flying time from Seattle, WA to Washington, DC. The total flight duration from Seattle, WA to Washington, DC is 4 hours, 29 minutes. This is the average in-air flight time (wheels up to wheels down on the runway) based on actual flights taken over the past year, including routes like SEA to DCA. It covers the entire time on ... Compare cheap flights to Washington, D.C. with Alaska Airlines. Enjoy our low prices and generous experience. ... From Seattle (SEA) To Washington, D.C. (IAD) One-way | Main: Depart: May 28, 2024: From. $189* ... DC, 10 years later. America's traditional political hub now buzzes with international shops and street festivals. Walk, …View Delta's best fares on flights from Seattle for your next getaway. Cradled by mountains and cool waters, stunning nature meets creative cityscapes in the sprawling and colorful Seattle, Washington. This gives visitors flying into Seattle-Tacoma International Airport (SEA) the best of outdoor adventure with the abounding options of a city ...Connecting flights between Washington, DC and Seattle, WA. Here is a list of connecting flights from Washington, District of Columbia to Seattle, Washington. This can help you find a one-stop flight with the shortest layover time. We found a total of 24 flights to Seattle, WA with one connection: Airline routes; American Airlines DCA to DFW to SEA18:04. Air Tahiti Nui / Operated by Alaska Airlines 406. (SEA to IAD) Track the current status of flights departing from (SEA) Seattle-Tacoma International Airport and arriving in (IAD) Washington Dulles International Airport.YOTEL Washington DC. 4 out of 5. Save 100% on your flight. Price was $1,361, price is now $936 per person. $1,361. $936. per person. Mar 10 - Mar 14. ... To find the best deals on flights to Seattle from Washington with Delta, just enter your travel dates, filter by Delta, and hit search. You’ll find flights to choose from and can sort by ...Flights from Washington, D.C. to Seattle. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Washington, D.C. to Seattle.The two airlines most popular with KAYAK users for flights from Seattle to San Jose are Alaska Airlines and Delta. With an average price for the route of $216 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $208 and an overall rating of 8.0.Wed 5/8 8:35 am SEA - IAD. Nonstop 5h 09m Delta. Deal found 4/17 $379. Pick Dates. One of the most popular airlines traveling from Washington, D.C. Dulles Intl Airport to Seattle is Delta. Flights from Delta traveling this route typically cost $377.81 RT.Seattle Tacoma Intl (SEA) - Seattle, WA. Seattle Tacoma Intl (SEA) - Seattle, WA. Arrivals Departures Airport Delay Weather Parking Limos.There are 15 weekly flights from Seattle/Tacoma to Washington, D.C. (Dulles) on Southwest Airlines. What day has the lowest fares from Seattle/Tacoma to Washington, D.C. (Dulles)? To find the lowest fares by day and time to fly Seattle/Tacoma to Washington, D.C. (Dulles) with Southwest, check out our Low Fare Calendar. 1 stop. Fri, May 10 SEA – BWI with Frontier Airlines. 1 stop. from $176. Seattle.$210 per passenger.Departing Sat, Apr 27, returning Fri, May 3.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Sat, Apr 27, arriving in Seattle / Tacoma International ... International Routes to and from Seattle For assistance with booking and flight arrangements please contact the domestic and international airlines you are flying with ... Welcome Home. Meet our International Arrivals Facility The Port of Seattle built a new, expanded International Arrivals Facility (IAF) at SEA Airport to meet growing …Find cheap flights from Washington, D.C. to Seattle from $81. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Sat 5/18. Sat 5/25. Search. Direct flights only. Search …
The total straight line flight distance from Seattle, WA to Washington, DC is 2,327 miles. This is equivalent to 3 745 kilometers or 2,022 nautical miles. Your trip begins in Seattle, Washington. It ends in Washington, District of Columbia. Your flight direction from Seattle, WA to Washington, DC is East (88 degrees from North).. Upmovies.to
6 days ago · One of the most popular airlines traveling from Washington, D.C. to Seattle is Frontier. Flights from Frontier traveling this route typically cost $443.80 RT. This price is typically 32% cheaper than other airlines that offer Washington, D.C. to Seattle flights. When booking this route, the cheapest RT price found was $139. Apr 26, 2024 · Lowest fares from Washington, D.C. to Seattle. Searching for cheap flights from Washington, D.C. to Seattle? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today. Find flights to Washington, D.C. from £111. Fly from Seattle on Delta, Alaska Airlines, Sun Country Air and more. Search for Washington, D.C. flights on KAYAK now to find the best deal. The two airlines most popular with KAYAK users for flights from New York to Washington, D.C. are Delta and JetBlue. With an average price for the route of $248 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $213 and an overall rating of 7.6. There are 3 airlines that fly nonstop from Washington, D.C. to Seattle. They are: Alaska Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $139 for a one-way flight. On average, the best prices for this route can be found at Delta. Discover fabulous offers and cheap airfare on flights to Seattle from major cities around the world. Call us 24/7 at 1-845-848-0154 to Get Cheap Flights! Flights. Packages.All dates and times are local for the airport listed. Gates and times are subject to change. For the most current information, check the airport monitors. Search for a topic... Find the flight status for a specific Delta Air Lines flight and receive real-time notifications via …Use Google Flights to find cheap departing flights to Charlotte and to track prices for specific travel dates for your next getaway.Tips to get cheap flights from Washington Dc to Seattle. Try to book your flight at least 21 days in advance in order to some flight deals which suit your budget. It is recommended to travel on weekdays to avoid weekend surcharges. Avoid flying in heavy traffic by booking your flight before or after major holidays. There are 15 weekly flights from Seattle/Tacoma to Washington, D.C. (Dulles) on Southwest Airlines. What day has the lowest fares from Seattle/Tacoma to Washington, D.C. (Dulles)? To find the lowest fares by day and time to fly Seattle/Tacoma to Washington, D.C. (Dulles) with Southwest, check out our Low Fare Calendar. Flights to Washington, D.C. (WAS) with American Airlines. Find low-fare American Airlines flights to Washington, D.C.. Enjoy our travel experience and great prices. Book the lowest fares on Washington, D.C. flights today!Flight status. Help. Contact American. Receipts and refunds. FAQs. Agency reference. Cargo , Opens another site in a new window that may not meet accessibility guidelines. Bag and optional fees. Customer service and contingency plans. $196 Cheap Alaska Airlines flights Seattle (SEA) to Washington (DCA) Prices were available within the past 7 days and start at $196 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. There are 4 airlines that fly nonstop from Seattle to New York. They are: Alaska Airlines, Delta, JetBlue and United Airlines. The cheapest price of all airlines flying this route was found with Alaska Airlines at $103 for a one-way flight. On average, the best prices for this route can be found at JetBlue.This month, there are 26,970 flights arriving at Seattle / Tacoma Airport, which are 899 flights per day or 37 flights per hour. On an average day, there is at least 1 flight arriving every 2 minutes. The most frequently departed flights to Seattle / Tacoma are routes from Portland (PDX) in United States and Phoenix (PHX), also in United States. Cheap Flights from Seattle to Washington (SEA-IAD) Prices were available within the past 7 days and start at $139 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Washington with no change fee on selected ... Prices were available within the past 7 days and start at $138 for one-way flights and $222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Prices starting at $130 for return flights and $56 for one-way flights to Ronald Reagan Washington National were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Tue, Apr 30 - Mon, May 6. SEA. .