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
Sunday, November 22nd, 2026
Outbound Flights
6h 6m·Nonstop
$209 USD
IADNov 22 17:50
→SEANov 22 20:56
UA 1128Boeing 737MAX 8 Passenger
8h 17m·1 stop
$219 USDIADNov 22 10:15
→ORDNov 22 11:39
UA 1252Airbus A321neo
1h 6m layover
ORDNov 22 12:45
→SEANov 22 15:32
UA 1660Boeing 737
8h 48m·1 stop
$219 USDIADNov 22 13:15
→ORDNov 22 14:38
UA 2331Boeing 737MAX 8 Passenger
1h 37m layover
ORDNov 22 16:15
→SEANov 22 19:03
UA 1801Airbus A321neo
9h 9m·1 stop
$219 USDIADNov 22 06:10
→ORDNov 22 07:29
UA 565Airbus A321neo
1h 56m layover
ORDNov 22 09:25
→SEANov 22 12:19
UA 2099Boeing 737
9h 5m·1 stop
$219 USDIADNov 22 06:15
→SFONov 22 09:19
UA 1095Boeing 757
47m layover
SFONov 22 10:06
→SEANov 22 12:20
UA 2340Airbus A320
9h 39m·1 stop
$219 USDIADNov 22 18:20
→SFONov 22 21:29
UA 2786Boeing 737MAX 9 Passenger
1h 6m layover
SFONov 22 22:35
→SEANov 23 00:59
UA 5579Embraer 175
9h 9m·1 stop
$239 USDIADNov 22 14:38
→SFONov 22 17:47
UA 2862Boeing 737
43m layover
SFONov 22 18:30
→SEANov 22 20:47
UA 762Airbus A320
8h 17m·1 stop
$266 USDIADNov 22 12:40
→DENNov 22 14:48
UA 1587Airbus A321neo
1h 5m layover
DENNov 22 15:53
→SEANov 22 17:57
UA 2013Boeing 737