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
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Fair Availability
38% of dates checked are available within 10% of the lowest price
Wednesday, January 20th, 2027
Outbound Flights
6h 7m·Nonstop
$209 USD
IADJan 20 17:55
→SEAJan 20 21:02
UA 1128Boeing 737MAX 9 Passenger
8h 29m·1 stop
$219 USDIADJan 20 12:43
→DENJan 20 14:55
UA 1587Airbus A321neo
1h 15m layover
DENJan 20 16:10
→SEAJan 20 18:12
UA 2013Boeing 737
9h 38m·1 stop
$219 USDIADJan 20 13:00
→ORDJan 20 14:24
UA 2331Boeing 737
2h 31m layover
ORDJan 20 16:55
→SEAJan 20 19:38
UA 653Boeing 737MAX 9 Passenger
9h 22m·1 stop
$219 USDIADJan 20 06:00
→SFOJan 20 09:15
UA 1095Boeing 737MAX 9 Passenger
50m layover
SFOJan 20 10:05
→SEAJan 20 12:22
UA 2192Airbus A320
9h 11m·1 stop
$219 USDIADJan 20 08:15
→SFOJan 20 11:24
UA 1147Boeing 757
51m layover
SFOJan 20 12:15
→SEAJan 20 14:26
UA 1264Airbus A320
10h 56m·1 stop
$219 USDIADJan 20 08:22
→LAXJan 20 11:19
UA 1734Boeing 757
1h 51m layover
LAXJan 20 13:10
→SEAJan 20 16:18
UA 6043Embraer 175
10h 17m·1 stop
$219 USDIADJan 20 09:21
→SFOJan 20 12:20
UA 1773Boeing 777
2h 6m layover
SFOJan 20 14:26
→SEAJan 20 16:38
UA 433Boeing 737MAX 8 Passenger
8h 35m·1 stop
$332 USDIADJan 20 08:15
→DENJan 20 10:27
UA 792Airbus A321neo
1h 18m layover
DENJan 20 11:45
→SEAJan 20 13:50
UA 2302Boeing 737MAX 9 Passenger