Iberia flights from Washington Dulles (IAD) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Wed,Fri-Sun 19:15 Washington Dulles (IAD) 22:00 Seattle-Tacoma (SEA)
Iberia IB 7260 Non-stop Boeing 737 (73J) 5:45 Effective 2026-05-13 through 2026-06-09
Codeshare flight, operated by Alaska Airlines.(AS 737)
Mon-Wed,Fri-Sun 19:18 Washington Dulles (IAD) 22:06 Seattle-Tacoma (SEA)
Iberia IB 7260 Non-stop Boeing 737 (73J) 5:48 Effective 2026-06-10 through 2026-06-17
Codeshare flight, operated by Alaska Airlines.(AS 737)
Daily 19:18 Washington Dulles (IAD) 22:06 Seattle-Tacoma (SEA)
Iberia IB 7260 Non-stop Boeing 737 (73J) 5:48 Effective 2026-06-18 through 2026-10-24
Codeshare flight, operated by Alaska Airlines.(AS 737)
Tue,Thu,Sun 18:04 Washington Dulles (IAD) 21:08 Seattle-Tacoma (SEA)
Iberia IB 7263 Non-stop Boeing 737 MAX 9 (7M9) 6:04 Effective 2026-01-08 through 2026-02-10
Codeshare flight, operated by Alaska Airlines.(AS 406)
Thu,Sun 18:27 Washington Dulles (IAD) 21:35 Seattle-Tacoma (SEA)
Iberia IB 7263 Non-stop Boeing 737 (73J) 6:08 Effective 2026-02-12 through 2026-03-05
Codeshare flight, operated by Alaska Airlines.(AS 406)
Tue,Sun 18:43 Washington Dulles (IAD) 21:32 Seattle-Tacoma (SEA)
Iberia IB 7263 Non-stop Boeing 737 (73J) 5:49 Valid until 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 409)
Thu 18:43 Washington Dulles (IAD) 21:32 Seattle-Tacoma (SEA)
Iberia IB 7263 Non-stop Boeing 737 MAX 9 (7M9) 5:49 Operates only on 2026-01-01
Codeshare flight, operated by Alaska Airlines.(AS 409)
Mon-Wed,Fri-Sun 19:01 Washington Dulles (IAD) 22:00 Seattle-Tacoma (SEA)
Iberia IB 7263 Non-stop Boeing 737 (73J) 5:59 Effective 2026-04-22 through 2026-05-12
Codeshare flight, operated by Alaska Airlines.(AS 737)
Mon-Wed,Fri-Sun 19:01 Washington Dulles (IAD) 22:00 Seattle-Tacoma (SEA)
Iberia IB 7308 Non-stop Boeing 737 (73J) 5:59 Effective 2026-03-29 through 2026-04-21
Codeshare flight, operated by Alaska Airlines.(AS 406)


Iberia flights from Washington Dulles (IAD) to Seattle-Tacoma (SEA).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 737)
Duration: 5:45, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-06-10 through 2026-06-17
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 737)
Duration: 5:48, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-06-18 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 737)
Duration: 5:48, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-01-08 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 406)
Duration: 6:04, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Effective 2026-02-12 through 2026-03-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 406)
Duration: 6:08, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Valid until 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 409)
Duration: 5:49, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Operates only on 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 409)
Duration: 5:49, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Effective 2026-04-22 through 2026-05-12
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 737)
Duration: 5:59, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-03-29 through 2026-04-21
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 406)
Duration: 5:59, non-stop
Boeing 737 (73J)
  • A domestic route departing from the Washington Dulles 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 5:45 and 6:08.