Copa Airlines flight CM 1239: Dulles, Washington - Buffalo

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed-Sun 08:20 Dulles, Washington (IAD) 09:37 Buffalo (BUF)
CM 1239 Non-stop Embraer EMB 175 (E7W) 1:17 Valid until 2024-09-02
Codeshare flight, operated by United Airlines.(UA 6072)
Mon,Thu 08:20 Dulles, Washington (IAD) 09:37 Buffalo (BUF)
CM 1239 Non-stop Embraer EMB 175 (E7W) 1:17 Effective 2024-09-05 through 2024-09-12
Codeshare flight, operated by United Airlines.(UA 6072)
Sat 08:20 Dulles, Washington (IAD) 09:38 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:18 Operates only on 2024-09-07
Codeshare flight, operated by United Airlines.(UA 4368)
Mon,Thu,Sat 08:20 Dulles, Washington (IAD) 09:37 Buffalo (BUF)
CM 1239 Non-stop Embraer EMB 175 (E7W) 1:17 Effective 2024-09-14 through 2024-09-26
Codeshare flight, operated by United Airlines.(UA 6072)
Sat 08:20 Dulles, Washington (IAD) 09:38 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:18 Effective 2024-09-28 through 2024-10-26
Codeshare flight, operated by United Airlines.(UA 4368)
Mon,Thu 08:20 Dulles, Washington (IAD) 09:37 Buffalo (BUF)
CM 1239 Non-stop Embraer EMB 175 (E7W) 1:17 Effective 2024-09-30 through 2024-10-24
Codeshare flight, operated by United Airlines.(UA 6072)
Mon,Tue,Thu,Sat 08:20 Dulles, Washington (IAD) 09:23 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:03 Effective 2025-02-13 through 2025-03-01
Codeshare flight, operated by United Airlines.(UA 4331)
Daily 08:20 Dulles, Washington (IAD) 09:23 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:03 Effective from 2025-03-02
Codeshare flight, operated by United Airlines.(UA 4331)
Mon-Fri,Sun 08:25 Dulles, Washington (IAD) 09:46 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2024-12-03 through 2024-12-18
Codeshare flight, operated by United Airlines.(UA 4331)
Daily 08:30 Dulles, Washington (IAD) 09:53 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:23 Effective 2024-12-19 through 2025-01-06
Codeshare flight, operated by United Airlines.(UA 4331)
Mon,Tue,Thu 08:35 Dulles, Washington (IAD) 09:56 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2024-10-28 through 2024-10-31
Codeshare flight, operated by United Airlines.(UA 4331)
Mon,Tue,Thu,Fri,Sun 08:35 Dulles, Washington (IAD) 09:56 Buffalo (BUF)
CM 1239 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2024-11-03 through 2024-12-02
Codeshare flight, operated by United Airlines.(UA 4331)
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Copa Airlines flight CM 1239:
Dulles, Washington - Buffalo
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:37
Buffalo (BUF)
Valid until 2024-09-02
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6072)
Duration: 1:17, non-stop
Embraer EMB 175 (E7W)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:37
Buffalo (BUF)
Effective 2024-09-05 through 2024-09-12
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 6072)
Duration: 1:17, non-stop
Embraer EMB 175 (E7W)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:38
Buffalo (BUF)
Operates only on 2024-09-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4368)
Duration: 1:18, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:37
Buffalo (BUF)
Effective 2024-09-14 through 2024-09-26
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 6072)
Duration: 1:17, non-stop
Embraer EMB 175 (E7W)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:38
Buffalo (BUF)
Effective 2024-09-28 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4368)
Duration: 1:18, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:37
Buffalo (BUF)
Effective 2024-09-30 through 2024-10-24
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 6072)
Duration: 1:17, non-stop
Embraer EMB 175 (E7W)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:23
Buffalo (BUF)
Effective 2025-02-13 through 2025-03-01
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4331)
Duration: 1:03, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:20
Dulles, Washington (IAD)

09:23
Buffalo (BUF)
Effective from 2025-03-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4331)
Duration: 1:03, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:25
Dulles, Washington (IAD)

09:46
Buffalo (BUF)
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4331)
Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:30
Dulles, Washington (IAD)

09:53
Buffalo (BUF)
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4331)
Duration: 1:23, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:35
Dulles, Washington (IAD)

09:56
Buffalo (BUF)
Effective 2024-10-28 through 2024-10-31
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4331)
Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Copa Airlines CM1239
08:35
Dulles, Washington (IAD)

09:56
Buffalo (BUF)
Effective 2024-11-03 through 2024-12-02
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4331)
Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
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  • 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 1:23.
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