Washington (IAD) to Seattle / Tacoma (SEA) flight deal in economy from $209
IADWashington Dulles International Airport
Washington, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$272 USD
-23%$209 USD
Verified 28 days agoJanuary 2027
Mon
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Sun
Fair Availability
38% of dates checked are available within 10% of the lowest price
Sunday, January 10th, 2027
Outbound Flights
9h 44m·1 stop
$234 USD
IADJan 10 15:15
→LAXJan 10 18:09
UA 684Boeing 737MAX 9 Passenger
56m layover
LAXJan 10 19:05
→SEAJan 10 21:59
UA 684Boeing 737MAX 8 Passenger
8h 58m·1 stop
$239 USDIADJan 10 10:05
→ORDJan 10 11:32
UA 635Boeing 737
1h 45m layover
ORDJan 10 13:17
→SEAJan 10 16:03
UA 2844Airbus A321neo
8h 2m·1 stop
$239 USDIADJan 10 16:15
→DENJan 10 18:25
UA 395Boeing 737
45m layover
DENJan 10 19:10
→SEAJan 10 21:17
UA 360Airbus A321neo
9h 54m·1 stop
$239 USDIADJan 10 06:00
→SFOJan 10 09:15
UA 1095Boeing 737MAX 9 Passenger
1h 22m layover
SFOJan 10 10:37
→SEAJan 10 12:54
UA 2192Boeing 737
9h 38m·1 stop
$239 USDIADJan 10 13:00
→ORDJan 10 14:24
UA 2331Boeing 737
2h 31m layover
ORDJan 10 16:55
→SEAJan 10 19:38
UA 653Boeing 737MAX 9 Passenger
8h 35m·1 stop
$267 USDIADJan 10 08:15
→DENJan 10 10:27
UA 792Airbus A321neo
1h 18m layover
DENJan 10 11:45
→SEAJan 10 13:50
UA 2302Boeing 737
6h 7m·Nonstop
$294 USDIADJan 10 17:55
→SEAJan 10 21:02
UA 1128Boeing 737MAX 9 Passenger
9h 14m·1 stop
$440 USDIADJan 10 14:34
→SFOJan 10 17:44
UA 2862Boeing 737MAX 9 Passenger
56m layover
SFOJan 10 18:40
→SEAJan 10 20:48
UA 1243Airbus A320