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
Saturday, January 2nd, 2027
Outbound Flights
10h 14m·1 stop
$304 USD
IADJan 2 06:10
→ORDJan 2 07:32
UA 565Boeing 737MAX 9 Passenger
3h 3m layover
ORDJan 2 10:35
→SEAJan 2 13:24
UA 2099Boeing 737
6h 7m·Nonstop
$365 USDIADJan 2 17:55
→SEAJan 2 21:02
UA 1128Boeing 737MAX 9 Passenger
6h 7m·Nonstop
$376 USDIADJan 2 08:50
→SEAJan 2 11:57
UA 2731Boeing 737
11h 56m·1 stop
$418 USDIADJan 2 10:10
→ORDJan 2 11:37
UA 1252Boeing 737
4h 43m layover
ORDJan 2 16:20
→SEAJan 2 19:06
UA 1801Airbus A321neo
9h 1m·1 stop
$424 USDIADJan 2 13:05
→ORDJan 2 14:29
UA 2331Boeing 737MAX 9 Passenger
1h 51m layover
ORDJan 2 16:20
→SEAJan 2 19:06
UA 1801Airbus A321neo
8h 41m·1 stop
$439 USDIADJan 2 06:05
→EWRJan 2 07:20
UA 1359Boeing 737MAX 9 Passenger
1h 5m layover
EWRJan 2 08:25
→SEAJan 2 11:46
UA 1330Boeing 737
9h 9m·1 stop
$546 USDIADJan 2 10:10
→ORDJan 2 11:37
UA 1252Boeing 737
1h 58m layover
ORDJan 2 13:35
→SEAJan 2 16:19
UA 1764Boeing 737
8h 25m·1 stop
$615 USDIADJan 2 12:39
→DENJan 2 14:51
UA 1587Airbus A321neo
1h 11m layover
DENJan 2 16:02
→SEAJan 2 18:04
UA 2013Boeing 737