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
Sunday, January 17th, 2027
Outbound Flights
6h 7m·Nonstop
$229 USD
IADJan 17 17:55
→SEAJan 17 21:02
UA 1128Boeing 737MAX 9 Passenger
8h 35m·1 stop
$239 USDIADJan 17 08:15
→DENJan 17 10:27
UA 792Airbus A321neo
1h 18m layover
DENJan 17 11:45
→SEAJan 17 13:50
UA 2302Boeing 737
8h 58m·1 stop
$239 USDIADJan 17 10:05
→ORDJan 17 11:32
UA 635Airbus A321neo
1h 45m layover
ORDJan 17 13:17
→SEAJan 17 16:03
UA 2844Airbus A321neo
8h 29m·1 stop
$239 USDIADJan 17 12:43
→DENJan 17 14:55
UA 1587Airbus A321neo
1h 15m layover
DENJan 17 16:10
→SEAJan 17 18:12
UA 2013Boeing 737
9h 28m·1 stop
$239 USDIADJan 17 13:00
→ORDJan 17 14:24
UA 2331Boeing 737
2h 21m layover
ORDJan 17 16:45
→SEAJan 17 19:28
UA 653Boeing 737
9h 54m·1 stop
$239 USDIADJan 17 06:00
→SFOJan 17 09:15
UA 1095Boeing 737MAX 9 Passenger
1h 22m layover
SFOJan 17 10:37
→SEAJan 17 12:54
UA 2192Boeing 737
24h 10m·1 stop
$364 USDIADJan 17 22:28
→ORDJan 17 23:44
UA 421Boeing 737
17h 11m layover·Overnight
ORDJan 18 16:55
→SEAJan 18 19:38
UA 653Boeing 737MAX 9 Passenger
15h 37m·1 stop
$422 USDIADJan 17 22:29
→EWRJan 17 23:44
UA 1168Boeing 737
8h 1m layover·Overnight
EWRJan 18 07:45
→SEAJan 18 11:06
UA 1330Boeing 737MAX 9 Passenger