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 agoOctober 2026
Mon
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Sun
Fair Availability
38% of dates checked are available within 10% of the lowest price
Tuesday, October 27th, 2026
Outbound Flights
17h 46m·2 stops
$243 USD
IADOct 27 22:39
→ATLOct 28 00:35
UA 1635Boeing 737MAX 8 Passenger
6h 25m layover
ATLOct 28 07:00
→IAHOct 28 08:25
UA 532Boeing 737
1h 55m layover
IAHOct 28 10:20
→SEAOct 28 13:25
UA 1062Boeing 737
11h 48m·1 stop
$248 USDIADOct 27 10:15
→ORDOct 27 11:38
UA 1252Boeing 737MAX 9 Passenger
4h 37m layover
ORDOct 27 16:15
→SEAOct 27 19:03
UA 1801Airbus A321neo
11h 22m·1 stop
$248 USDIADOct 27 15:37
→ORDOct 27 17:00
UA 1786Boeing 737MAX 9 Passenger
4h 20m layover
ORDOct 27 21:20
→SEAOct 27 23:59
UA 2263Boeing 737MAX 8 Passenger
12h 20m·1 stop
$248 USDIADOct 27 06:12
→ORDOct 27 07:30
UA 565Boeing 737MAX 9 Passenger
5h 15m layover
ORDOct 27 12:45
→SEAOct 27 15:32
UA 1660Boeing 737
6h 6m·Nonstop
$344 USDIADOct 27 17:50
→SEAOct 27 20:56
UA 1128Boeing 737MAX 9 Passenger
8h 17m·1 stop
$354 USDIADOct 27 10:15
→ORDOct 27 11:38
UA 1252Boeing 737MAX 9 Passenger
1h 7m layover
ORDOct 27 12:45
→SEAOct 27 15:32
UA 1660Boeing 737
8h 17m·1 stop
$354 USDIADOct 27 12:40
→DENOct 27 14:48
UA 1587Airbus A321neo
1h 5m layover
DENOct 27 15:53
→SEAOct 27 17:57
UA 2013Boeing 737
9h 7m·1 stop
$354 USDIADOct 27 06:12
→ORDOct 27 07:30
UA 565Boeing 737MAX 9 Passenger
1h 55m layover
ORDOct 27 09:25
→SEAOct 27 12:19
UA 2099Boeing 737
9h 5m·1 stop
$354 USDIADOct 27 06:15
→SFOOct 27 09:19
UA 1095Boeing 757
47m layover
SFOOct 27 10:06
→SEAOct 27 12:20
UA 2340Airbus A320
8h 34m·1 stop
$354 USDIADOct 27 08:20
→DENOct 27 10:29
UA 792Airbus A321neo
1h 21m layover
DENOct 27 11:50
→SEAOct 27 13:54
UA 2302Boeing 737
8h 48m·1 stop
$354 USDIADOct 27 13:15
→ORDOct 27 14:38
UA 2331Boeing 737
1h 37m layover
ORDOct 27 16:15
→SEAOct 27 19:03
UA 1801Airbus A321neo
9h 21m·1 stop
$354 USDIADOct 27 14:26
→SFOOct 27 17:35
UA 2862Boeing 737
55m layover
SFOOct 27 18:30
→SEAOct 27 20:47
UA 762Airbus A320