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Find The Best Dates To Fly from Seattle - Tacoma Intl. to Washington Dulles Intl.
Amazing SEA to IAD Flight Deals
The cheapest flights to Washington Dulles Intl. found within the past 7 days were $265 round trip and $139 one way. Prices and availability subject to change. Additional terms may apply.
Best Washington Dulles Intl. Flight and Hotel Packages
Washington Dulles Intl. flight + hotel packages - economy flights
Frequently asked questions
Traveling From | Seattle - Tacoma Intl. |
---|---|
Traveling To | Washington Dulles Intl. |
Shortest Flight Time | 10 hours 49 mins |
Earliest Departure Time | 8:01AM EDT |
Latest Departure Time | 11:38PM EDT |
Lowest Flight Price | $265 |
Route Info
Flight path for flights from Seattle-Tacoma International Airport to Washington Dulles International Airport
Airlines & Aircraft Used on SEA to IAD Flight Routes
Discover our best flights from Seattle SEA to Washington IAD.
With 15 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times.
Find our best return flights from Seattle SEA to Washington IAD at the right price
Airfares to Washington IAD from Seattle SEA currently cost between $265 and $283. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply.
Book one-way flights from Seattle SEA to Washington IAD
If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Seattle SEA to Washington IAD on Travelocity starting at $139. Prices and availability subject to change. Additional terms may apply.
Get to Washington IAD from Seattle SEA quicker with direct flights.
Get to Washington faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to IAD from SEA to take around 10 hour(s) 49 min(s).
Find our cheapest airfares for flights from Seattle SEA to Washington IAD
Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to IAD from SEA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.
Get our best airfare deals for your flight from Seattle SEA to Washington IAD today
If you’re flexible about when you travel, September is usually the cheapest month to fly from Seattle SEA to Washington IAD. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first.
Book flexible airline tickets for flights to Washington IAD from Seattle SEA
Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to IAD from SEA have this option.
Travel with confidence when you book flights to Washington IAD from Seattle SEA with Travelocity
We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving.
Popular Flight Routes from Seattle (SEA)
Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!
Top SEA Flights to Domestic Cities
- Seattle to Chicago (SEA - ORD)
- Seattle to Denver (SEA - DEN)
- Seattle to Los Angeles (SEA - LAX)
- Seattle to Houston (SEA - IAH)
- Seattle to Newark (SEA - EWR)
- Seattle to New York (SEA - JFK)
- Seattle to Atlanta (SEA - ATL)
- Seattle to San Francisco (SEA - SFO)
- Seattle to Washington (SEA - IAD)
- Seattle to Dallas (SEA - DFW)
Top SEA Flights to International Cities
- Seattle to Beijing (SEA - PEK)
- Seattle to Frankfurt (SEA - FRA)
- Seattle to Paris (SEA - CDG)
- Seattle to Amsterdam (SEA - AMS)
- Seattle to Singapore (SEA - SIN)
- Seattle to Shanghai (SEA - PVG)
- Seattle to Bangkok (SEA - BKK)
- Seattle to Seoul (SEA - ICN)
- Seattle to Dubai (SEA - DXB)
- Seattle to Hong Kong (SEA - HKG)
Popular Flight Routes from Washington (IAD)
Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington(IAD) today with the cheap prices from Travelocity!
Top IAD Flights to Domestic Cities
- Washington to Chicago (IAD - ORD)
- Washington to Denver (IAD - DEN)
- Washington to Los Angeles (IAD - LAX)
- Washington to Houston (IAD - IAH)
- Washington to Newark (IAD - EWR)
- Washington to New York (IAD - JFK)
- Washington to Atlanta (IAD - ATL)
- Washington to San Francisco (IAD - SFO)
- Washington to Dallas (IAD - DFW)
- Washington to Miami (IAD - MIA)
Top IAD Flights International Cities
- Washington to Beijing (IAD - PEK)
- Washington to Frankfurt (IAD - FRA)
- Washington to Paris (IAD - CDG)
- Washington to Amsterdam (IAD - AMS)
- Washington to Singapore (IAD - SIN)
- Washington to Shanghai (IAD - PVG)
- Washington to Bangkok (IAD - BKK)
- Washington to Seoul (IAD - ICN)
- Washington to Dubai (IAD - DXB)
- Washington to Hong Kong (IAD - HKG)
Top Airlines Servicing SEA - Seattle - Tacoma Intl. Airport
Top Airlines Servicing IAD - Washington Dulles Intl. Airport
Top Airlines Routes From SEA
- Alaska Airlines Seattle to Chicago
- Alaska Airlines Seattle to Newark
- Alaska Airlines Seattle to San Diego
- Alaska Airlines Seattle to Phoenix
- Alaska Airlines Seattle to Los Angeles
- Qatar Airways Seattle to Bangkok
- Alaska Airlines Seattle to Honolulu
- Spirit Airlines Seattle to New York
- Alaska Airlines Seattle to Boston
- Virgin Atlantic Seattle to Paris