All airlines flying from Dulles, Washington (IAD) to Buffalo (BUF).

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Avianca AV 2042 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:26 Effective 2025-05-06 through 2025-05-20
Codeshare flight, operated by United Airlines.(UA 3558)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Avianca AV 2042 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-05-22 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 4823)
Fri 17:25 Dulles, Washington (IAD) 18:55 Buffalo (BUF)
Avianca AV 2042 Non-stop Canadair CRJ 550 (CR5) 1:30 Operates only on 2025-07-04
Codeshare flight, operated by United Airlines.(UA 4182)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Avianca AV 2042 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-07-05 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 4823)
Daily 17:25 Dulles, Washington (IAD) 18:46 Buffalo (BUF)
Avianca AV 2042 Non-stop Canadair CRJ 550 (CR5) 1:21 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 4456)
Daily 17:10 Dulles, Washington (IAD) 18:21 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2025-08-19 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 6101)
Daily 17:10 Dulles, Washington (IAD) 18:21 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective from 2025-11-02
Codeshare flight, operated by United Airlines.(UA 4823)
Mon,Wed-Sun 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Embraer EMB 175 (E7W) 1:26 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 3558)
Tue 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:26 Effective 2025-05-06 through 2025-05-20
Codeshare flight, operated by United Airlines.(UA 3558)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-05-22 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 4823)
Fri 17:25 Dulles, Washington (IAD) 18:55 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Canadair CRJ 550 (CR5) 1:30 Operates only on 2025-07-04
Codeshare flight, operated by United Airlines.(UA 4182)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-07-05 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 4823)
Daily 17:25 Dulles, Washington (IAD) 18:46 Buffalo (BUF)
Copa Airlines CM 2142 Non-stop Canadair CRJ 550 (CR5) 1:21 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 4456)
Daily 17:10 Dulles, Washington (IAD) 18:21 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2025-08-19 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 6101)
Daily 17:10 Dulles, Washington (IAD) 18:21 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective from 2025-11-02
Codeshare flight, operated by United Airlines.(UA 4823)
Mon,Wed-Sun 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Embraer EMB 175 (E7W) 1:26 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 3558Z)
Tue 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:26 Effective 2025-05-06 through 2025-05-20
Codeshare flight, operated by United Airlines.(UA 3558)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-05-22 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 4823)
Fri 17:25 Dulles, Washington (IAD) 18:55 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Canadair CRJ 550 (CR5) 1:30 Operates only on 2025-07-04
Codeshare flight, operated by United Airlines.(UA 4182)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-07-05 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 4823)
Daily 17:25 Dulles, Washington (IAD) 18:46 Buffalo (BUF)
Lufthansa LH 7566 Non-stop Canadair CRJ 550 (CR5) 1:21 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 4456Z)
Mon,Wed-Sun 22:15 Dulles, Washington (IAD) 23:36 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Embraer EMB 175 (E7W) 1:21 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 3680)
Tue 22:15 Dulles, Washington (IAD) 23:36 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:21 Effective 2025-05-06 through 2025-05-20
Codeshare flight, operated by United Airlines.(UA 3680)
Daily 22:15 Dulles, Washington (IAD) 23:26 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective 2025-08-19 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 4353)
Mon,Wed,Thu,Sat,Sun 22:15 Dulles, Washington (IAD) 23:26 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective 2025-11-02 through 2025-12-01
Codeshare flight, operated by United Airlines.(UA 4353)
Mon,Wed,Thu,Sat,Sun 22:15 Dulles, Washington (IAD) 23:26 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective from 2025-12-17
Codeshare flight, operated by United Airlines.(UA 4353)
Tue,Wed 22:20 Dulles, Washington (IAD) 23:44 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2025-05-27 through 2025-06-24
Codeshare flight, operated by United Airlines.(UA 4390)
Daily 22:20 Dulles, Washington (IAD) 23:44 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2025-06-26 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 4390)
Daily 22:20 Dulles, Washington (IAD) 23:44 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2025-07-05 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 4390)
Mon,Thu-Sun 22:21 Dulles, Washington (IAD) 23:46 Buffalo (BUF)
Lufthansa LH 7824 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:25 Effective 2025-05-22 through 2025-06-23
Codeshare flight, operated by United Airlines.(UA 4353)
Daily 17:10 Dulles, Washington (IAD) 18:21 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Embraer EMB 175 (E7W) 1:11 Effective 2025-08-19 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 6101)
Daily 17:10 Dulles, Washington (IAD) 18:21 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:11 Effective from 2025-10-26
Codeshare flight, operated by United Airlines.(UA 4823)
Mon,Wed-Sun 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Embraer EMB 175 (E7W) 1:26 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 3558)
Tue 17:25 Dulles, Washington (IAD) 18:51 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:26 Effective 2025-05-06 through 2025-05-20
Codeshare flight, operated by United Airlines.(UA 3558)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-05-22 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 4823)
Fri 17:25 Dulles, Washington (IAD) 18:55 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Canadair CRJ 550 (CR5) 1:30 Operates only on 2025-07-04
Codeshare flight, operated by United Airlines.(UA 4182)
Daily 17:25 Dulles, Washington (IAD) 18:56 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:31 Effective 2025-07-05 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 4823)
Daily 17:25 Dulles, Washington (IAD) 18:46 Buffalo (BUF)
Brussels Airlines SN 8933 Non-stop Canadair CRJ 550 (CR5) 1:21 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 4456)
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All airlines flying from Dulles, Washington (IAD) to Buffalo (BUF).
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Effective 2025-05-06 through 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 3558)
Duration: 1:26, non-stop
Embraer EMB 170 / EMB 175 (E70)

Effective 2025-05-22 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4182)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4456)
Duration: 1:21, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6101)
Duration: 1:11, non-stop
Embraer EMB 175 (E7W)

Effective from 2025-11-02
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)

Valid until 2025-05-21
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 3558)
Duration: 1:26, non-stop
Embraer EMB 175 (E7W)

Effective 2025-05-06 through 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 3558)
Duration: 1:26, non-stop
Embraer EMB 170 / EMB 175 (E70)

Effective 2025-05-22 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4182)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4456)
Duration: 1:21, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6101)
Duration: 1:11, non-stop
Embraer EMB 175 (E7W)

Effective from 2025-11-02
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)

Valid until 2025-05-21
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 3558Z)
Duration: 1:26, non-stop
Embraer EMB 175 (E7W)

Effective 2025-05-06 through 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 3558)
Duration: 1:26, non-stop
Embraer EMB 170 / EMB 175 (E70)

Effective 2025-05-22 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4182)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 4456Z)
Duration: 1:21, non-stop
Canadair CRJ 550 (CR5)

Valid until 2025-05-21
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 3680)
Duration: 1:21, non-stop
Embraer EMB 175 (E7W)

Effective 2025-05-06 through 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 3680)
Duration: 1:21, non-stop
Embraer EMB 170 / EMB 175 (E70)

Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4353)
Duration: 1:11, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-11-02 through 2025-12-01
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4353)
Duration: 1:11, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective from 2025-12-17
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4353)
Duration: 1:11, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-05-27 through 2025-06-24
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4390)
Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4390)
Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4390)
Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-05-22 through 2025-06-23
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4353)
Duration: 1:25, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6101)
Duration: 1:11, non-stop
Embraer EMB 175 (E7W)

Effective from 2025-10-26
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)

Valid until 2025-05-21
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 3558)
Duration: 1:26, non-stop
Embraer EMB 175 (E7W)

Effective 2025-05-06 through 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 3558)
Duration: 1:26, non-stop
Embraer EMB 170 / EMB 175 (E70)

Effective 2025-05-22 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4182)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)

Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4823)
Duration: 1:31, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4456)
Duration: 1:21, non-stop
Canadair CRJ 550 (CR5)
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  • A domestic route 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 1:31.