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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Sun
Fair Availability
38% of dates checked are available within 10% of the lowest price
Saturday, November 7th, 2026
Outbound Flights
6h 6m·Nonstop
$279 USD
IADNov 7 17:50
→SEANov 7 20:56
UA 1128Boeing 737MAX 8 Passenger
8h 19m·1 stop
$289 USDIADNov 7 12:40
→DENNov 7 14:47
UA 1587Boeing 737MAX 9 Passenger
1h 8m layover
DENNov 7 15:55
→SEANov 7 17:59
UA 2013Boeing 737
8h 46m·1 stop
$289 USDIADNov 7 13:17
→ORDNov 7 14:40
UA 2331Boeing 737
1h 35m layover
ORDNov 7 16:15
→SEANov 7 19:03
UA 1801Airbus A321neo
9h 5m·1 stop
$289 USDIADNov 7 06:15
→SFONov 7 09:19
UA 1095Boeing 757
47m layover
SFONov 7 10:06
→SEANov 7 12:20
UA 2340Airbus A320
8h 35m·1 stop
$289 USDIADNov 7 08:20
→DENNov 7 10:29
UA 792Airbus A321neo
1h 21m layover
DENNov 7 11:50
→SEANov 7 13:55
UA 2302Airbus A321neo
10h 12m·1 stop
$289 USDIADNov 7 09:00
→LAXNov 7 11:54
UA 1897Airbus A321neo
1h 11m layover
LAXNov 7 13:05
→SEANov 7 16:12
UA 6043Embraer 175
10h 1m·1 stop
$289 USDIADNov 7 09:25
→SFONov 7 12:32
UA 271Boeing 757
1h 38m layover
SFONov 7 14:10
→SEANov 7 16:26
UA 433Boeing 737
9h 9m·1 stop
$289 USDIADNov 7 14:38
→SFONov 7 17:47
UA 2862Boeing 737
43m layover
SFONov 7 18:30
→SEANov 7 20:47
UA 762Airbus A320