Home >> Fares From A City >> Seattle, WA >> Seattle, WA (SEA) To Washington, D.C., DC (IAD)
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  • AIRLINES
    Southwest
  • TRAVEL STARTING
    Thu, September 03, 2015
  • TRAVEL ENDING
    Wed, October 07, 2015
Andrew G.
Staff Airfare Analyst
Andrew's Notes:
Certain travel dates only! No min. stay. Fare can be bought one-way for half the lowest roundtrip price. Fall travel.

This is a fare from Southwest, please visit Southwest.com to find this fare. Other airlines often match Southwest sales, so search other sites to find the best option.

Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.

All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included. Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.

More Details
Close Details
Reviews for Seattle to Washington DC
7 Traveler Reviews
"Uncomfortable, lost seats, attitude - no thanks"
Flight from Seattle to Washington DC
Airline: United
RT/OW: roundtrip
Number of Stops: 1 stop in IAD
Date of Flight: April 2012
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
They lost our seats in the merger, didn't bother to call us. After 3 hours talking to customer service, we got new seats - not togather. Didn't offer anything as an apology. Seats horribly uncomfortable. 4/5 flights left late, almost costing us a key connection during a 3 flight day, from overseas. Gave us lip when we arrived at security late, like it was our fault the plane was late. Entertainment was good - when it worked. Which was a big IF. Sent the full story to them, no reply. Better airlines out there than these bozos.
Found by other travelers: Seattle, WA (SEA) to Washington, D.C., DC (IAD)
$540
Flight from Seattle to Washington DC (SEA - IAD)
Wed, Jul 23 - Wed, Aug 6
American
$420
Flight from Seattle to Washington DC (SEA - IAD)
Wed, Aug 27 - Tue, Sep 2
JetBlue
$550
Flight from Seattle to Washington DC (SEA - IAD)
Tue, Jul 1 - Tue, Jul 8
United
$561
Flight from Seattle to Washington DC (SEA - IAD)
Mon, Jun 30 - Tue, Jul 8
United
$600
Flight from Seattle to Washington DC (SEA - IAD)
Fri, Jul 25 - Sun, Aug 3
American
$610
Flight from Seattle to Washington DC (SEA - IAD)
Thu, Jul 17 - Sun, Jul 20
United
$524
Flight from Seattle to Washington DC (SEA - IAD)
Sat, Jul 5 - Mon, Jul 14
American
$519
Flight from Seattle to Washington DC (SEA - IAD)
Fri, Jul 4 - Mon, Jul 14
American
$583
Flight from Seattle to Washington DC (SEA - IAD)
Sun, Jun 8 - Fri, Jun 13
US Airways
$580
Flight from Seattle to Washington DC (SEA - IAD)
Wed, Jul 2 - Sun, Jul 6
United
There are approximately 273 flights covering the route from Seattle/Tacoma International Airport in Seattle to Dulles International Airport in Washington DC, provided by as many as 10 airlines.
The following airlines often offer cheap flights from Seattle to Washington DC
Alaska
AirTran
Continental
Southwest
American
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