United Airlines
Star Alliance
Did you mean flights from Washington to Seattle / Tacoma?
United States
Seattle–Tacoma International Airport
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United States
Washington Dulles International Airport
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Scan through all non-stop flights from Seattle / Tacoma to Washington. The full flight schedule below gives an overview of all non-stop flights from SEA to IAD, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Washington is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Washington any time of the year, but the best months to explore are from to and from to .
In total there are 3 airlines operating nonstop flights from Seattle / Tacoma SEA to Washington IAD. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their SEA IAD flight schedule.
Flights from SEA to IAD are operated 28 times a week, with an average of 4 flights per day. Departure times vary between 07:40 - 23:30. The earliest flight departs at 07:40, the last flight departs at 23:30. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Seattle / Tacoma to Washington takes 5 hours and 14 minutes. The flight distance between Seattle / Tacoma and Washington is 2,298 miles (or 3,698 km).
There are 3 airports in Washington: Washington Dulles International Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore/Washington International Thurgood Marshall Ai (BWI).
There are 28 flights per week flying from Seattle / Tacoma to Washington (as of April 2026).
5 hours and 14 minutes is the average flight time from Seattle / Tacoma to Washington.
The distance from Seattle / Tacoma to Washington is 2,298 miles (3,698 kilometers).
Alaska, Delta and United Airlines are flying nonstop from Seattle / Tacoma to Washington.
Oneworld, SkyTeam and Star Alliance are flying nonstop from Seattle / Tacoma to Washington.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Seattle / Tacoma to Washington:
The earliest flight departs at 07:40 from Seattle / Tacoma and arrives at 15:49 at Washington.
The latest flight departs at 23:30 from Seattle / Tacoma and arrives at 07:34 at Washington.
2,298 miles (3,698 km) · 5h 14m
08:00
16:11
United Airlines
Star Alliance
UA 2861
United Airlines
Boeing 737 MAX 9
Y
W
J
F
08:00
16:11
United Airlines
Star Alliance
UA 2861
United Airlines
Boeing 737 MAX 9
Y
W
J
F
08:00
16:11
United Airlines
Star Alliance
UA 2861
United Airlines
Boeing 737 MAX 9
Y
W
J
F
08:00
16:11
United Airlines
Star Alliance
UA 2861
United Airlines
Boeing 737 MAX 9
Y
W
J
F
08:10
16:22
United Airlines
Star Alliance
UA 2851
United Airlines
Boeing 737-900
Y
W
J
F
09:50
17:50
Alaska
Oneworld
AS 737
Alaska
Boeing 737 MAX 9
Y
W
J
F
10:00
18:20
Alaska
Oneworld
AS 737
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
10:00
18:20
Alaska
Oneworld
AS 737
Alaska
Boeing 737 MAX 9
Y
W
J
F
10:00
18:20
Alaska
Oneworld
AS 737
Alaska
Boeing 737 MAX 9
Y
W
J
F
10:09
18:11
Alaska
Oneworld
AS 737
Alaska
Boeing 737 MAX 9
Y
W
J
F
10:09
18:11
Alaska
Oneworld
AS 737
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
10:09
18:11
Alaska
Oneworld
AS 737
Alaska
Boeing 737 MAX 9
Y
W
J
F
10:09
18:11
Alaska
Oneworld
AS 737
Alaska
Boeing 737 MAX 9
Y
W
J
F
10:09
18:11
Alaska
Oneworld
AS 737
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
13:07
21:16
United Airlines
Star Alliance
UA 755
United Airlines
Boeing 737 MAX 8
Y
W
J
F
15:55
23:49
Delta
SkyTeam
DL 541
Delta
Airbus A220-300
Y
W
J
F
15:55
00:09
Alaska
Oneworld
AS 348
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
15:55
00:09
Alaska
Oneworld
AS 348
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
15:55
00:09
Alaska
Oneworld
AS 348
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
15:55
00:09
Alaska
Oneworld
AS 348
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
15:55
00:09
Alaska
Oneworld
AS 348
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
15:59
23:55
Delta
SkyTeam
DL 541
Delta
Airbus A220-300
Y
W
J
F
21:40
05:40
Alaska
Oneworld
AS 367
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:40
05:40
Alaska
Oneworld
AS 367
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:40
05:40
Alaska
Oneworld
AS 367
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
21:40
05:40
Alaska
Oneworld
AS 367
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:40
05:40
Alaska
Oneworld
AS 367
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
21:40
05:40
Alaska
Oneworld
AS 367
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
21:41
05:50
Alaska
Oneworld
AS 367
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:41
05:50
Alaska
Oneworld
AS 367
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
21:41
05:50
Alaska
Oneworld
AS 367
Alaska
Boeing 737 MAX 9
Y
W
J
F
22:41
06:50
United Airlines
Star Alliance
UA 264
United Airlines
Boeing 737 MAX 9
Y
W
J
F
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