Washington (IAD) to Seattle / Tacoma (SEA) flight deal in economy from $219
IADWashington Dulles International Airport
Washington, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$273 USD
-20%$219 USD
Verified about 1 hour agoOctober 2026
Mon
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Good Availability
42% of dates checked are available within 10% of the lowest price
Tuesday, October 13th, 2026
Outbound Flights
5h 52m·Nonstop
$219 USD
IADOct 13 17:45
→SEAOct 13 20:37
UA 1128Boeing 737MAX 9 Passenger
8h 17m·1 stop
$229 USDIADOct 13 06:10
→ORDOct 13 07:25
UA 2691Boeing 737MAX 9 Passenger
1h 20m layover
ORDOct 13 08:45
→SEAOct 13 11:27
UA 2099Airbus A321neo
8h 43m·1 stop
$229 USDIADOct 13 06:35
→SFOOct 13 09:23
UA 1095Boeing 757
42m layover
SFOOct 13 10:05
→SEAOct 13 12:18
UA 500Boeing 737
10h 8m·1 stop
$229 USDIADOct 13 08:25
→LAXOct 13 10:56
UA 1734Boeing 757
1h 48m layover
LAXOct 13 12:44
→SEAOct 13 15:33
UA 1295Boeing 737MAX 8 Passenger
5h 46m·Nonstop
$239 USDIADOct 13 13:05
→SEAOct 13 15:51
UA 1824Boeing 737MAX 9 Passenger
8h 42m·1 stop
$320 USDIADOct 13 13:10
→ORDOct 13 14:26
UA 2331Boeing 737
1h 39m layover
ORDOct 13 16:05
→SEAOct 13 18:52
UA 1801Airbus A321neo
9h 5m·1 stop
$354 USDIADOct 13 09:28
→LAXOct 13 12:04
UA 657Airbus A321neo
40m layover
LAXOct 13 12:44
→SEAOct 13 15:33
UA 1295Boeing 737MAX 8 Passenger
8h 47m·1 stop
$410 USDIADOct 13 08:30
→SFOOct 13 11:22
UA 1147Boeing 757
41m layover
SFOOct 13 12:03
→SEAOct 13 14:17
UA 2744Airbus A319