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

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737-900 (739) 4:58 Effective 2025-10-26 through 2025-12-01
Codeshare flight, operated by United Airlines.(UA 2131)
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737-900 (739) 4:58 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2131)
Mon-Sat 12:55 Seattle-Tacoma (SEA) 21:03 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737-900 (739) 5:08 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 2275)
Sun 12:55 Seattle-Tacoma (SEA) 21:03 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Airbus A319 (319) 5:08 Effective 2025-05-04 through 2025-05-18
Codeshare flight, operated by United Airlines.(UA 2275)
Mon-Sat 13:09 Seattle-Tacoma (SEA) 21:15 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Effective 2025-09-26 through 2025-10-04
Codeshare flight, operated by United Airlines.(UA 2131)
Daily 13:09 Seattle-Tacoma (SEA) 21:15 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Effective 2025-10-05 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 2131)
Mon-Fri,Sun 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-06-26 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 2402)
The flight arrives 1 day after departure.
Sat 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-06-28 through 2025-08-16
Codeshare flight, operated by United Airlines.(UA 2402)
The flight arrives 1 day after departure.
Mon-Fri,Sun 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-06 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 2402)
The flight arrives 1 day after departure.
Mon-Fri,Sun 22:15 Seattle-Tacoma (SEA) 06:12 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-05-22 through 2025-06-24
Codeshare flight, operated by United Airlines.(UA 2402)
The flight arrives 1 day after departure.
Sat 22:15 Seattle-Tacoma (SEA) 06:12 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-05-24 through 2025-06-21
Codeshare flight, operated by United Airlines.(UA 2402)
The flight arrives 1 day after departure.
Wed 22:15 Seattle-Tacoma (SEA) 06:12 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737-700 (73G) 4:57 Operates only on 2025-06-25
Codeshare flight, operated by United Airlines.(UA 2402)
The flight arrives 1 day after departure.
Daily 22:58 Seattle-Tacoma (SEA) 07:01 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-08-19 through 2025-09-07
Codeshare flight, operated by United Airlines.(UA 2019)
The flight arrives 1 day after departure.
Tue-Sun 22:58 Seattle-Tacoma (SEA) 07:01 Dulles, Washington (IAD)
Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-09-09 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 2019)
The flight arrives 1 day after departure.
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Copa Airlines flights from Seattle-Tacoma (SEA) to Dulles, Washington (IAD).
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:

Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2131)
Duration: 4:58, non-stop
Boeing 737-900 (739)

Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2131)
Duration: 4:58, non-stop
Boeing 737-900 (739)

Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2275)
Duration: 5:08, non-stop
Boeing 737-900 (739)

Effective 2025-05-04 through 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2275)
Duration: 5:08, non-stop
Airbus A319 (319)

Effective 2025-09-26 through 2025-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2131)
Duration: 5:06, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-10-05 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2131)
Duration: 5:06, non-stop
Boeing 737 MAX 8 (7M8)

Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2402)
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Effective 2025-06-28 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2402)
Duration: 4:57, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Effective 2025-07-06 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2402)
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Effective 2025-05-22 through 2025-06-24
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2402)
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Effective 2025-05-24 through 2025-06-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2402)
Duration: 4:57, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Operates only on 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2402)
Duration: 4:57, non-stop
Boeing 737-700 (73G)
The flight arrives 1 day after departure.

Effective 2025-08-19 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2019)
Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Effective 2025-09-09 through 2025-09-24
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2019)
Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
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  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Dulles, Washington airport (IAD).
  • The flight distance is 2299 miles, or 3699 km.
  • The timezone of the departure airport is UTC-8 (plus 1h DST), and the timezone of the arrival airport is UTC-5 (plus 1h DST). Current time at the point of departure is 7:26pm, and 10:26pm at the point of arrival. There is a 3 hour time difference between the airports.
  • For direct flights, the flight time varies between 4:57 and 5:08.