
$244 Cheap United flights Washington (DCA) to Seattle (SEA)
Prices were available within the past 7 days and start at $244 for one-way flights and $347 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 6 - Sat, Sep 12
DCA
Washington
SEA
Seattle
$347 Roundtrip, found 22 hours ago
$347
Roundtrip
found 22 hours ago

Sat, Jan 17 - Fri, Jan 23
DCA
Washington
SEA
Seattle
$372 Roundtrip, found 6 days ago
$372
Roundtrip
found 6 days ago

Sat, May 23 - Mon, May 25
DCA
Washington
SEA
Seattle
$377 Roundtrip, found 17 hours ago
$377
Roundtrip
found 17 hours ago

Sun, Sep 6 - Sat, Sep 12
DCA
Washington
SEA
Seattle
$388 Roundtrip, found 22 hours ago
$388
Roundtrip
found 22 hours ago

Sat, Jan 17 - Fri, Jan 23
DCA
Washington
SEA
Seattle
$403 Roundtrip, found 6 days ago
$403
Roundtrip
found 6 days ago
Find the cheapest month to fly from Washington (DCA) to Seattle (SEA)
May is typically the cheapest month to fly
From $160 - $491 per traveler.
Travel information
Origin airport | Ronald Reagan Washington National |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Southwest Airlines, United |
Popular airline | Alaska Airlines |
Distance | 3715 km |
Average flight time | 3 hours 4 mins |
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Most Popular United Routes from Washington
Most Popular United Routes from Seattle
- Montrose to Philadelphia (MTJ - PHL)
- Boston to San Juan (BOS - SJU)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Chicago to Tampa (ORD - TPA)
- Detroit to Phoenix (DTW - PHX)
- Boston to San Juan (BOS - SJU)
- Newark Liberty Intl. Airport to Cancun (EWR - CUN)
- Atlanta to Miami (ATL - MIA)
- Boston to Seattle (BOS - SEA)
- Milwaukee to Orlando (MKE - MCO)
Popular Domestic Routes in Seattle - Tacoma Intl.
- Boston to San Juan (BOS - SJU)
- Charlotte to New York (CLT - LGA)
- Newark Liberty Intl. Airport to Chicago (EWR - ORD)
- Boston to Seattle (BOS - SEA)
- Charlotte to New York (CLT - LGA)
- Newark Liberty Intl. Airport to Cancun (EWR - CUN)
- Los Angeles to Atlanta (LAX - ATL)
- New York to Chicago (LGA - ORD)
- Newark Liberty Intl. Airport to Birmingham (EWR - BHM)
- Detroit to Phoenix (DTW - PHX)