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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Fair Availability
38% of dates checked are available within 10% of the lowest price
Friday, January 15th, 2027
Outbound Flights
8h 58m·1 stop
$239 USD
IADJan 15 10:05
→ORDJan 15 11:32
UA 635Boeing 737
1h 45m layover
ORDJan 15 13:17
→SEAJan 15 16:03
UA 2844Airbus A321neo
9h 38m·1 stop
$239 USDIADJan 15 13:00
→ORDJan 15 14:24
UA 2331Boeing 737
2h 31m layover
ORDJan 15 16:55
→SEAJan 15 19:38
UA 653Boeing 737MAX 9 Passenger
10h 18m·1 stop
$239 USDIADJan 15 17:38
→SFOJan 15 20:44
UA 1757Boeing 787
1h 51m layover
SFOJan 15 22:35
→SEAJan 16 00:56
UA 5631Embraer 175
10h 13m·1 stop
$281 USDIADJan 15 06:00
→IAHJan 15 08:34
UA 506Boeing 737
1h 31m layover
IAHJan 15 10:05
→SEAJan 15 13:13
UA 1062Boeing 737MAX 9 Passenger
6h 7m·Nonstop
$301 USDIADJan 15 17:55
→SEAJan 15 21:02
UA 1128Boeing 737
9h 14m·1 stop
$304 USDIADJan 15 14:34
→SFOJan 15 17:44
UA 2862Boeing 737MAX 9 Passenger
56m layover
SFOJan 15 18:40
→SEAJan 15 20:48
UA 1243Airbus A320
9h 22m·1 stop
$374 USDIADJan 15 06:00
→SFOJan 15 09:15
UA 1095Boeing 737MAX 9 Passenger
50m layover
SFOJan 15 10:05
→SEAJan 15 12:22
UA 2192Airbus A320
9h 11m·1 stop
$416 USDIADJan 15 08:15
→SFOJan 15 11:24
UA 1147Boeing 757
51m layover
SFOJan 15 12:15
→SEAJan 15 14:26
UA 1264Boeing 737MAX 8 Passenger