Copa Airlines
flight
CM 2142:
Washington Dulles - Buffalo
Washington Dulles - Buffalo
FLIGHT SCHEDULE
Direct Codeshare Flights:
Copa Airlines CM2142
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4823)
Duration: 1:32, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM2142
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4823)
Duration: 1:11, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM2142
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4823)
Duration: 1:36, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM2142
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4383)
Duration: 1:31, non-stop Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2142
Effective 2026-01-06 through 2026-02-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4823)
Duration: 1:37, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
- CM 2142 is a domestic flight departing from the Washington Dulles 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 1:11 and 1:37.