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
Monday, November 2nd, 2026
Outbound Flights
6h 6m·Nonstop
$209 USD
IADNov 2 17:50
→SEANov 2 20:56
UA 1128Boeing 737MAX 8 Passenger
9h 5m·1 stop
$219 USDIADNov 2 06:15
→SFONov 2 09:19
UA 1095Boeing 757
47m layover
SFONov 2 10:06
→SEANov 2 12:20
UA 2340Airbus A320
10h 2m·1 stop
$219 USDIADNov 2 09:25
→SFONov 2 12:32
UA 271Boeing 757
1h 38m layover
SFONov 2 14:10
→SEANov 2 16:27
UA 433Airbus A319
9h 24m·1 stop
$239 USDIADNov 2 08:15
→SFONov 2 11:22
UA 1147Boeing 757
1h layover
SFONov 2 12:22
→SEANov 2 14:39
UA 2744Airbus A320
10h 47m·1 stop
$239 USDIADNov 2 08:25
→LAXNov 2 11:14
UA 1734Boeing 757
1h 51m layover
LAXNov 2 13:05
→SEANov 2 16:12
UA 6043Embraer 175
8h 48m·1 stop
$239 USDIADNov 2 13:15
→ORDNov 2 14:38
UA 2331Boeing 737MAX 8 Passenger
1h 37m layover
ORDNov 2 16:15
→SEANov 2 19:03
UA 1801Airbus A321neo
9h 9m·1 stop
$258 USDIADNov 2 14:38
→SFONov 2 17:47
UA 2862Boeing 737
43m layover
SFONov 2 18:30
→SEANov 2 20:47
UA 762Airbus A320
8h 17m·1 stop
$262 USDIADNov 2 10:15
→ORDNov 2 11:38
UA 1252Boeing 737MAX 9 Passenger
1h 7m layover
ORDNov 2 12:45
→SEANov 2 15:32
UA 1660Boeing 737