Copa Airlines
flight
CM 1239:
Dulles, Washington - Buffalo
Dulles, Washington - Buffalo
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Copa Airlines CM1239
Effective 2025-08-19 through 2025-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6261)
Duration: 1:03, non-stop Embraer EMB 175 (E7W)
Copa Airlines CM1239
Effective 2025-09-10 through 2025-09-24
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 6261)
Duration: 1:03, non-stop Embraer EMB 175 (E7W)
Copa Airlines CM1239
Effective 2025-10-26 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4236)
Duration: 1:03, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 6261)
Duration: 1:20, non-stop Embraer EMB 175 (E7W)
Copa Airlines CM1239
Effective 2025-05-03 through 2025-05-17
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 4322)
Duration: 1:21, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
Effective 2025-05-22 through 2025-05-30
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 6261)
Duration: 1:18, non-stop Embraer EMB 175 (E7W)
Copa Airlines CM1239
Effective 2025-06-01 through 2025-06-24
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 6261)
Duration: 1:18, non-stop Embraer EMB 175 (E7W)
Copa Airlines CM1239
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 6261)
Duration: 1:20, non-stop Embraer EMB 175 (E7W)
Copa Airlines CM1239
Effective 2025-06-28 through 2025-08-17
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4322)
Duration: 1:21, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
Effective 2025-09-25 through 2025-10-06
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4322)
Duration: 1:21, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
Effective 2025-10-07 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4322)
Duration: 1:21, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
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Parallax here IAD-BUF
- CM 1239 is a domestic flight departing from the Dulles, Washington airport (IAD) and arriving at Buffalo airport (BUF).
- The flight distance is 283 miles, or 456 km.
- The timezone of both the departure and the arrival airports is UTC-5 . Current time at both airports is (loading...).
- For direct flights, the flight time varies between 1:03 and 1:21.