Copa Airlines flights from Buffalo (BUF) to Dulles, Washington (IAD).

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Thu 06:00 Buffalo (BUF) 07:20 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:20 Operates only on 2025-05-01 Codeshare flight, operated by United Airlines.(UA 4247)
Mon,Tue,Thu-Sun 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer EMB 175 (E7W) 1:19 Effective 2025-05-02 through 2025-05-20 Codeshare flight, operated by United Airlines.(UA 3645)
Wed 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:19 Effective 2025-05-07 through 2025-05-21 Codeshare flight, operated by United Airlines.(UA 3645)
Daily 06:00 Buffalo (BUF) 07:14 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Canadair CRJ 550 (CR5) 1:14 Effective 2025-06-26 through 2025-08-18 Codeshare flight, operated by United Airlines.(UA 4169)
Daily 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:19 Effective 2025-08-19 through 2025-09-08 Codeshare flight, operated by United Airlines.(UA 4298)
Mon,Wed-Sun 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:19 Effective 2025-09-10 through 2025-09-24 Codeshare flight, operated by United Airlines.(UA 4298)
Daily 06:00 Buffalo (BUF) 07:21 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2025-10-26 through 2025-12-01 Codeshare flight, operated by United Airlines.(UA 4298)
Daily 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:19 Effective 2025-12-18 through 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4298)
Daily 06:00 Buffalo (BUF) 07:19 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:19 Effective from 2026-02-12 Codeshare flight, operated by United Airlines.(UA 4298)
Mon,Tue,Fri-Sun 06:15 Buffalo (BUF) 07:31 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:16 Effective 2025-05-23 through 2025-06-24 Codeshare flight, operated by United Airlines.(UA 4298)
Wed,Thu 06:15 Buffalo (BUF) 07:29 Dulles, Washington (IAD) Copa Airlines CM 1075 Non-stop Canadair CRJ 550 (CR5) 1:14 Effective 2025-05-28 through 2025-06-25 Codeshare flight, operated by United Airlines.(UA 4451)
Daily 19:30 Buffalo (BUF) 20:41 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2025-08-19 through 2025-09-03 Codeshare flight, operated by United Airlines.(UA 6048)
Mon-Wed,Fri,Sat 19:30 Buffalo (BUF) 20:41 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2025-09-05 through 2025-09-17 Codeshare flight, operated by United Airlines.(UA 6048)
Mon-Sat 19:30 Buffalo (BUF) 20:41 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2025-09-18 through 2025-09-24 Codeshare flight, operated by United Airlines.(UA 6048)
Daily 19:30 Buffalo (BUF) 20:41 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective 2025-10-26 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4270)
Daily 19:45 Buffalo (BUF) 21:06 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2025-06-26 through 2025-07-03 Codeshare flight, operated by United Airlines.(UA 4270)
Daily 19:45 Buffalo (BUF) 21:06 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2025-07-05 through 2025-08-18 Codeshare flight, operated by United Airlines.(UA 4270)
Mon-Sat 19:51 Buffalo (BUF) 21:10 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Canadair CRJ 550 (CR5) 1:19 Effective 2025-09-26 through 2025-10-04 Codeshare flight, operated by United Airlines.(UA 4172)
Daily 19:51 Buffalo (BUF) 21:10 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Canadair CRJ 550 (CR5) 1:19 Effective 2025-10-05 through 2025-10-25 Codeshare flight, operated by United Airlines.(UA 4172)
Mon,Wed-Sun 19:55 Buffalo (BUF) 21:14 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer EMB 175 (E7W) 1:19 Valid until 2025-05-21 Codeshare flight, operated by United Airlines.(UA 3531)
Tue 19:55 Buffalo (BUF) 21:14 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:19 Effective 2025-05-06 through 2025-05-20 Codeshare flight, operated by United Airlines.(UA 3531)
Daily 19:55 Buffalo (BUF) 21:16 Dulles, Washington (IAD) Copa Airlines CM 2148 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective 2025-05-22 through 2025-06-25 Codeshare flight, operated by United Airlines.(UA 4270)
Daily 10:20 Buffalo (BUF) 11:41 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer EMB 175 (E7W) 1:21 Effective 2025-08-19 through 2025-09-24 Codeshare flight, operated by United Airlines.(UA 6178)
Daily 10:20 Buffalo (BUF) 11:41 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:21 Effective from 2025-10-26 Codeshare flight, operated by United Airlines.(UA 4935)
Mon,Tue,Thu,Fri 10:28 Buffalo (BUF) 11:44 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer EMB 175 (E7W) 1:16 Effective 2025-05-22 through 2025-05-30 Codeshare flight, operated by United Airlines.(UA 6178)
Mon,Tue,Thu,Fri,Sun 10:28 Buffalo (BUF) 11:44 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer EMB 175 (E7W) 1:16 Effective 2025-06-01 through 2025-06-24 Codeshare flight, operated by United Airlines.(UA 6178)
Mon-Fri,Sun 10:30 Buffalo (BUF) 11:46 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer EMB 175 (E7W) 1:16 Valid until 2025-05-21 Codeshare flight, operated by United Airlines.(UA 6155)
Sat 10:30 Buffalo (BUF) 11:48 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:18 Effective 2025-05-03 through 2025-05-17 Codeshare flight, operated by United Airlines.(UA 4274)
Mon,Tue,Thu,Fri 10:30 Buffalo (BUF) 11:46 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer EMB 175 (E7W) 1:16 Effective 2025-06-26 through 2025-08-18 Codeshare flight, operated by United Airlines.(UA 6178)
Wed,Sat,Sun 10:30 Buffalo (BUF) 11:47 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:17 Effective 2025-06-28 through 2025-08-17 Codeshare flight, operated by United Airlines.(UA 4242)
Daily 10:30 Buffalo (BUF) 11:46 Dulles, Washington (IAD) Copa Airlines CM 2149 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:16 Effective 2025-09-25 through 2025-10-25 Codeshare flight, operated by United Airlines.(UA 4935)

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Parallax here BUF-IAD

A domestic route departing from the Buffalo airport (BUF) and arriving at Dulles, Washington airport (IAD).
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 1:21.

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Copa Airlines flights from Buffalo (BUF) to Dulles, Washington (IAD).

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:20

Dulles, Washington (IAD)

Operates only on 2025-05-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4247)

Duration: 1:20, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:19

Dulles, Washington (IAD)

Effective 2025-05-02 through 2025-05-20

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 3645)

Duration: 1:19, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:19

Dulles, Washington (IAD)

Effective 2025-05-07 through 2025-05-21

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 3645)

Duration: 1:19, non-stop
Embraer EMB 170 / EMB 175 (E70)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:14

Dulles, Washington (IAD)

Effective 2025-06-26 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4169)

Duration: 1:14, non-stop
Canadair CRJ 550 (CR5)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:19

Dulles, Washington (IAD)

Effective 2025-08-19 through 2025-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4298)

Duration: 1:19, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:19

Dulles, Washington (IAD)

Effective 2025-09-10 through 2025-09-24

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4298)

Duration: 1:19, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:21

Dulles, Washington (IAD)

Effective 2025-10-26 through 2025-12-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4298)

Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:19

Dulles, Washington (IAD)

Effective 2025-12-18 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4298)

Duration: 1:19, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:00

Buffalo (BUF)

07:19

Dulles, Washington (IAD)

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4298)

Duration: 1:19, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:15

Buffalo (BUF)

07:31

Dulles, Washington (IAD)

Effective 2025-05-23 through 2025-06-24

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4298)

Duration: 1:16, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM1075

06:15

Buffalo (BUF)

07:29

Dulles, Washington (IAD)

Effective 2025-05-28 through 2025-06-25

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4451)

Duration: 1:14, non-stop
Canadair CRJ 550 (CR5)

Copa Airlines CM2148

19:30

Buffalo (BUF)

20:41

Dulles, Washington (IAD)

Effective 2025-08-19 through 2025-09-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 6048)

Duration: 1:11, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2148

19:30

Buffalo (BUF)

20:41

Dulles, Washington (IAD)

Effective 2025-09-05 through 2025-09-17

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 6048)

Duration: 1:11, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2148

19:30

Buffalo (BUF)

20:41

Dulles, Washington (IAD)

Effective 2025-09-18 through 2025-09-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 6048)

Duration: 1:11, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2148

19:30

Buffalo (BUF)

20:41

Dulles, Washington (IAD)

Effective 2025-10-26 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4270)

Duration: 1:11, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2148

19:45

Buffalo (BUF)

21:06

Dulles, Washington (IAD)

Effective 2025-06-26 through 2025-07-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4270)

Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2148

19:45

Buffalo (BUF)

21:06

Dulles, Washington (IAD)

Effective 2025-07-05 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4270)

Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2148

19:51

Buffalo (BUF)

21:10

Dulles, Washington (IAD)

Effective 2025-09-26 through 2025-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4172)

Duration: 1:19, non-stop
Canadair CRJ 550 (CR5)

Copa Airlines CM2148

19:51

Buffalo (BUF)

21:10

Dulles, Washington (IAD)

Effective 2025-10-05 through 2025-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4172)

Duration: 1:19, non-stop
Canadair CRJ 550 (CR5)

Copa Airlines CM2148

19:55

Buffalo (BUF)

21:14

Dulles, Washington (IAD)

Valid until 2025-05-21

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 3531)

Duration: 1:19, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2148

19:55

Buffalo (BUF)

21:14

Dulles, Washington (IAD)

Effective 2025-05-06 through 2025-05-20

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 3531)

Duration: 1:19, non-stop
Embraer EMB 170 / EMB 175 (E70)

Copa Airlines CM2148

19:55

Buffalo (BUF)

21:16

Dulles, Washington (IAD)

Effective 2025-05-22 through 2025-06-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4270)

Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2149

10:20

Buffalo (BUF)

11:41

Dulles, Washington (IAD)

Effective 2025-08-19 through 2025-09-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 6178)

Duration: 1:21, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2149

10:20

Buffalo (BUF)

11:41

Dulles, Washington (IAD)

Effective from 2025-10-26

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4935)

Duration: 1:21, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2149

10:28

Buffalo (BUF)

11:44

Dulles, Washington (IAD)

Effective 2025-05-22 through 2025-05-30

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 6178)

Duration: 1:16, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2149

10:28

Buffalo (BUF)

11:44

Dulles, Washington (IAD)

Effective 2025-06-01 through 2025-06-24

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 6178)

Duration: 1:16, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2149

10:30

Buffalo (BUF)

11:46

Dulles, Washington (IAD)

Valid until 2025-05-21

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 6155)

Duration: 1:16, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2149

10:30

Buffalo (BUF)

11:48

Dulles, Washington (IAD)

Effective 2025-05-03 through 2025-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4274)

Duration: 1:18, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2149

10:30

Buffalo (BUF)

11:46

Dulles, Washington (IAD)

Effective 2025-06-26 through 2025-08-18

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 6178)

Duration: 1:16, non-stop
Embraer EMB 175 (E7W)

Copa Airlines CM2149

10:30

Buffalo (BUF)

11:47

Dulles, Washington (IAD)

Effective 2025-06-28 through 2025-08-17

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4242)

Duration: 1:17, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Copa Airlines CM2149

10:30

Buffalo (BUF)

11:46

Dulles, Washington (IAD)

Effective 2025-09-25 through 2025-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4935)

Duration: 1:16, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

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Parallax here BUF-IAD

A domestic route departing from the Buffalo airport (BUF) and arriving at Dulles, Washington airport (IAD).
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 1:21.

All BUF-IAD flights

All Copa Airlines flights

Return (IAD-BUF) flights

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