
$142 Cheap American Airlines flights from Seattle to Washington (SEA to IAD)
Find The Best Day To Fly from Seattle to Washington
Amazing American Airlines SEA to IAD Flight Deals
The cheapest flights to Washington Dulles Intl. found within the past 7 days were $323 round trip and $142 one way. Prices and availability subject to change. Additional terms may apply.
IAD From SEA Economy Coach Packages on Similar Airlines



Frequently asked questions
Discover our best American Airlines flight from Seattle SEA to Washington IAD
To find the best deals on flights to Seattle from Washington with American Airlines, just enter your travel dates, filter by American Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Seattle SEA to Washington IAD with American Airlines
If you’re planning a round trip, booking return flights with American Airlines is usually the most cost-effective option. With airfares ranging from $323 to $2,810, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way American Airlines flights from Seattle SEA to Washington IAD
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way American Airlines flight from Seattle to Washington costs from $142. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Washington IAD from Seattle SEA with American Airlines
To find a cheap American Airlines flight from Seattle SEA to Washington IAD, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on American Airlines flights from Seattle SEA to Washington IAD
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as June, or if you book a flight with a stopover.
Find nonstop flights from Seattle SEA to Washington IAD with American Airlines
If you’re keen to be on Washington soil fast, don’t waste time with a stopover—filter your search results to show direct American Airlines flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for American Airlines flights from Seattle SEA to Washington IAD
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Washington IAD from Seattle SEA with American Airlines on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
DFW | USA | Dallas-Fort Worth Intl. | 599 |
CLT | USA | Charlotte-Douglas Intl. | 536 |
ORD | USA | O'Hare Intl. | 317 |
PHL | USA | Philadelphia Intl. | 247 |
MIA | USA | Miami Intl. | 193 |
DCA | USA | Ronald Reagan Washington National | 152 |
PHX | USA | Sky Harbor Intl. | 141 |
LAX | USA | Los Angeles Intl. | 81 |
LGA | USA | LaGuardia | 72 |
BOS | USA | Logan Intl. | 57 |
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Popular American Airlines Flight Routes from SEA
Top American Airlines Flight Routes from IAD
- American Airlines IAD to SJU
- American Airlines IAD to LAX
- American Airlines IAD to SAL
- American Airlines IAD to ATL
- American Airlines IAD to MAD
- American Airlines IAD to DEN
- American Airlines IAD to LHR
- American Airlines IAD to LAS
- American Airlines IAD to SEA
- American Airlines IAD to SDF
- American Airlines IAD to CUN
Top Flights for American Airlines originating from SEA
Domestic
- San Juan to Orlando (SJU - MCO)
- San Jose to Tokyo (SJC - NRT)
- New York to Orlando (LGA - MCO)
- New York to San Juan (JFK - SJU)
- San Francisco to Tokyo (SFO - HND)
- San Francisco to Tokyo (SFO - NRT)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Philadelphia to San Juan (PHL - SJU)
- Dallas to Tokyo (DFW - NRT)
- New York to London (JFK - LHR)
International
- Newark Liberty Intl. Airport to Santiago (EWR - STI)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Philadelphia to San Juan (PHL - SJU)
- San Jose to Tokyo (SJC - NRT)
- Philadelphia to San Juan (PHL - SJU)
- Los Angeles to San Salvador (LAX - SAL)
- New York to London (JFK - LHR)
- New York to Santo Domingo (JFK - SDQ)
- New York to San Juan (JFK - SJU)
- New York to Santo Domingo (JFK - SDQ)