Delta Air Lines flights from Dulles, Washington (IAD) to Seattle-Tacoma (SEA).

Ad box here 7322741189 I FlightInfo Top Box
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 07:25 Dulles, Washington (IAD) 10:20 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 5:55 Valid until 2025-05-06
Sat 07:25 Dulles, Washington (IAD) 10:22 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 5:57 Valid until 2025-05-03
Daily 07:30 Dulles, Washington (IAD) 10:22 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 5:52 Effective 2025-07-07 through 2025-09-07
Daily 07:30 Dulles, Washington (IAD) 10:35 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 6:05 Effective 2025-09-08 through 2025-12-19
Daily 07:30 Dulles, Washington (IAD) 10:34 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 6:04 Effective from 2026-01-06
Daily 07:40 Dulles, Washington (IAD) 10:28 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 5:48 Effective 2025-06-08 through 2025-07-06
Daily 07:45 Dulles, Washington (IAD) 10:33 Seattle-Tacoma (SEA)
Delta Air Lines DL 1015 Non-stop Airbus A220-300 (223) 5:48 Effective 2025-05-07 through 2025-06-07
Daily 07:30 Dulles, Washington (IAD) 10:35 Seattle-Tacoma (SEA)
Delta Air Lines DL 1084 Non-stop Airbus A220-300 (223) 6:05 Effective 2025-12-20 through 2026-01-05
Ad flat here 8924483383 I FlightInfo Lower
Parallax here IAD-SEA


Delta Air Lines flights from Dulles, Washington (IAD) to Seattle-Tacoma (SEA).
Ad mobi flat here (320x100px) 9629219771 M FlightInfo Top Flat
Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:55, non-stop
Airbus A220-300 (223)

Valid until 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:57, non-stop
Airbus A220-300 (223)

Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:52, non-stop
Airbus A220-300 (223)

Effective 2025-09-08 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:05, non-stop
Airbus A220-300 (223)

Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:04, non-stop
Airbus A220-300 (223)

Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:48, non-stop
Airbus A220-300 (223)

Effective 2025-05-07 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:48, non-stop
Airbus A220-300 (223)

Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:05, non-stop
Airbus A220-300 (223)
Ad mobi box here (300x250px) 6815354179 M FlightInfo Bottom Box
Parallax here IAD-SEA
  • A domestic route departing from the Dulles, Washington airport (IAD) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2299 miles, or 3699 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 5:48 and 6:05.