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 agoJanuary 2027
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Fair Availability
38% of dates checked are available within 10% of the lowest price
Saturday, January 9th, 2027
Outbound Flights
6h 7m·Nonstop
$209 USD
IADJan 9 17:55
→SEAJan 9 21:02
UA 1128Boeing 737MAX 9 Passenger
8h 36m·1 stop
$219 USDIADJan 9 08:15
→DENJan 9 10:27
UA 792Airbus A321neo
1h 18m layover
DENJan 9 11:45
→SEAJan 9 13:51
UA 2302Airbus A321neo
8h 29m·1 stop
$219 USDIADJan 9 12:43
→DENJan 9 14:55
UA 1587Airbus A321neo
1h 15m layover
DENJan 9 16:10
→SEAJan 9 18:12
UA 2013Boeing 737
9h 22m·1 stop
$219 USDIADJan 9 06:00
→SFOJan 9 09:15
UA 1095Boeing 737MAX 9 Passenger
50m layover
SFOJan 9 10:05
→SEAJan 9 12:22
UA 2192Airbus A320
10h 56m·1 stop
$219 USDIADJan 9 08:22
→LAXJan 9 11:19
UA 1734Boeing 757
1h 51m layover
LAXJan 9 13:10
→SEAJan 9 16:18
UA 6043Embraer 175
10h 11m·1 stop
$219 USDIADJan 9 09:27
→SFOJan 9 12:37
UA 1773Boeing 737MAX 9 Passenger
1h 49m layover
SFOJan 9 14:26
→SEAJan 9 16:38
UA 433Boeing 737MAX 9 Passenger
15h 43m·1 stop
$327 USDIADJan 9 22:23
→LGAJan 9 23:44
UA 4053Embraer 175
8h 1m layover·Overnight
EWRJan 10 07:45
→SEAJan 10 11:06
UA 1330Boeing 737MAX 9 Passenger
20h 42m·1 stop
$342 USDIADJan 9 18:00
→LAXJan 9 20:57
UA 2276Boeing 757
11h 33m layover·Overnight
LAXJan 10 08:30
→SEAJan 10 11:42
UA 4649Embraer 175