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

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Thu 08:00 Seattle-Tacoma (SEA) 16:06 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-800 (738) 5:06 Valid until 2026-01-01
Codeshare flight, operated by United Airlines.(UA 2217)
Mon-Wed,Fri,Sun 08:00 Seattle-Tacoma (SEA) 16:06 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2217)
Tue-Fri 08:00 Seattle-Tacoma (SEA) 16:02 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737 MAX 8 (7M8) 5:02 Effective 2026-03-05 through 2026-03-27
Codeshare flight, operated by United Airlines.(UA 2474)
Sat,Sun 08:00 Seattle-Tacoma (SEA) 16:02 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-800 (738) 5:02 Effective 2026-03-07 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2474)
Mon 08:00 Seattle-Tacoma (SEA) 16:02 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-03-09 through 2026-03-23
Codeshare flight, operated by United Airlines.(UA 2474)
Daily 08:00 Seattle-Tacoma (SEA) 16:11 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737 MAX 9 (7M9) 5:11 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 1523)
Daily 08:00 Seattle-Tacoma (SEA) 16:11 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:11 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 1523)
Daily 08:00 Seattle-Tacoma (SEA) 15:53 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 4:53 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 1523)
Daily 08:10 Seattle-Tacoma (SEA) 16:16 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-01-06 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 2217)
Daily 08:10 Seattle-Tacoma (SEA) 16:16 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-02-05 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 2217)
Daily 08:17 Seattle-Tacoma (SEA) 16:19 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 2217)
Wed 08:20 Seattle-Tacoma (SEA) 16:26 Washington Dulles (IAD)
Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:06 Operates only on 2026-02-04
Codeshare flight, operated by United Airlines.(UA 2217)


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

Valid until 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2217)
Duration: 5:06, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Valid until 2026-01-05
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2217)
Duration: 5:06, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Effective 2026-03-05 through 2026-03-27
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2474)
Duration: 5:02, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Effective 2026-03-07 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2474)
Duration: 5:02, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Effective 2026-03-09 through 2026-03-23
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2474)
Duration: 5:02, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1523)
Duration: 5:11, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1523)
Duration: 5:11, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1523)
Duration: 4:53, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2217)
Duration: 5:06, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2217)
Duration: 5:06, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2217)
Duration: 5:02, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2217)
Duration: 5:06, non-stop
Boeing 737-900 (739)
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Washington Dulles airport (IAD).
  • The flight distance is 2299 miles, or 3699 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 4:53 and 5:11.