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 agoNovember 2026
Mon
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Fair Availability
38% of dates checked are available within 10% of the lowest price
Wednesday, November 25th, 2026
Outbound Flights
6h 6m·Nonstop
$269 USD
IADNov 25 17:50
→SEANov 25 20:56
UA 1128Boeing 737
8h 48m·1 stop
$279 USDIADNov 25 13:15
→ORDNov 25 14:38
UA 2331Boeing 737MAX 9 Passenger
1h 37m layover
ORDNov 25 16:15
→SEANov 25 19:03
UA 1801Airbus A321neo
9h 21m·1 stop
$279 USDIADNov 25 14:26
→SFONov 25 17:35
UA 2862Boeing 737
55m layover
SFONov 25 18:30
→SEANov 25 20:47
UA 762Airbus A320
9h 8m·1 stop
$279 USDIADNov 25 06:11
→ORDNov 25 07:30
UA 565Airbus A321neo
1h 55m layover
ORDNov 25 09:25
→SEANov 25 12:19
UA 2099Boeing 737
9h 5m·1 stop
$279 USDIADNov 25 06:15
→SFONov 25 09:19
UA 1095Boeing 757
47m layover
SFONov 25 10:06
→SEANov 25 12:20
UA 2340Airbus A320
10h 9m·1 stop
$279 USDIADNov 25 08:23
→ORDNov 25 09:45
UA 1775Airbus A321neo
3h layover
ORDNov 25 12:45
→SEANov 25 15:32
UA 1660Boeing 737
9h 39m·1 stop
$279 USDIADNov 25 18:20
→SFONov 25 21:29
UA 2786Boeing 737MAX 9 Passenger
1h 6m layover
SFONov 25 22:35
→SEANov 26 00:59
UA 5579Embraer 175
8h 17m·1 stop
$313 USDIADNov 25 10:15
→ORDNov 25 11:38
UA 1252Boeing 737MAX 9 Passenger
1h 7m layover
ORDNov 25 12:45
→SEANov 25 15:32
UA 1660Boeing 737