Seattle / Tacoma (SEA) to Washington (IAD) flight deal in economy from $154

Delta Air LinesDLDelta Air Lines
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesIAD

Washington Dulles International Airport

Washington, United States
$291 USD
-47%$154 USD
Verified 2 days ago
Rare Availability
5% of dates checked are available within 10% of the lowest price

Tuesday, January 26th, 2027

Outbound Flights

4h 55m·Nonstop
$219 USD
Delta Air Lines
SEAJan 26 15:55
→
IADJan 26 23:50
DL 541Airbus A220-300 Passenger
7h 44m·1 stop
$269 USD
Delta Air Lines
SEAJan 26 06:00
→
DTWJan 26 13:20
DL 812Boeing 737
1h 43m layover
Delta Air Lines
DTWJan 26 15:03
→
IADJan 26 16:44
DL 4962Canadair RJ 900
8h 22m·1 stop
$269 USD
Delta Air Lines
SEAJan 26 11:55
→
DTWJan 26 19:15
DL 1706Airbus A321neo
2h 25m layover
Delta Air Lines
DTWJan 26 21:40
→
IADJan 26 23:17
DL 4704Canadair RJ 700
7h·1 stop
$269 USD
Delta Air Lines
SEAJan 26 13:31
→
SLCJan 26 16:36
DL 1120Airbus A321neo
59m layover
Delta Air Lines
SLCJan 26 17:35
→
IADJan 26 23:31
DL 847Boeing 737
8h·1 stop
$269 USD
Delta Air Lines
SEAJan 26 22:35
→
ATLJan 27 06:12
DL 567Boeing 737
1h 33m layover
Delta Air Lines
ATLJan 27 07:45
→
IADJan 27 09:35
DL 1324Airbus A319
9h 56m·1 stop
$269 USD
Delta Air Lines
SEAJan 26 23:12
→
DTWJan 27 06:30
DL 810Boeing 737
3h 55m layover
Delta Air Lines
DTWJan 27 10:25
→
IADJan 27 12:08
DL 5517Canadair RJ 900
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