All airlines flying from Buffalo (BUF) to Chicago O'Hare (ORD).

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FLIGHT SCHEDULE
Direct Flights:
Daily 17:03 Buffalo (BUF) 18:00 Chicago O'Hare (ORD) 3 American Airlines AA 3500 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:57 Effective 2026-04-07 through 2026-05-20
Tue,Wed 11:21 Buffalo (BUF) 12:36 Chicago O'Hare (ORD) 3 American Airlines AA 3703 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Effective 2026-01-06 through 2026-02-11
Mon,Thu-Sat 11:22 Buffalo (BUF) 12:37 Chicago O'Hare (ORD) 3 American Airlines AA 3703 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Effective 2026-01-08 through 2026-02-09
Sun 11:27 Buffalo (BUF) 12:42 Chicago O'Hare (ORD) 3 American Airlines AA 3703 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Operates only on 2026-01-11
Sun 11:27 Buffalo (BUF) 12:42 Chicago O'Hare (ORD) 3 American Airlines AA 3703 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Effective 2026-01-25 through 2026-02-08
Daily 17:00 Buffalo (BUF) 18:00 Chicago O'Hare (ORD) 3 American Airlines AA 4076 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-08-05 through 2026-09-08
Mon-Fri,Sun 17:16 Buffalo (BUF) 18:40 Chicago O'Hare (ORD) 3 American Airlines AA 4183 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:24 Effective 2026-01-06 through 2026-02-11
Sat 17:17 Buffalo (BUF) 18:41 Chicago O'Hare (ORD) 3 American Airlines AA 4183 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:24 Effective 2026-01-24 through 2026-02-07
Sat 06:00 Buffalo (BUF) 07:15 Chicago O'Hare (ORD) 3 American Airlines AA 4340 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-14 through 2026-04-04
Mon-Fri 06:05 Buffalo (BUF) 07:20 Chicago O'Hare (ORD) 3 American Airlines AA 4340 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-09 through 2026-04-06
Sun 17:45 Buffalo (BUF) 19:15 Chicago O'Hare (ORD) 3 American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 2:30 Operates only on 2026-02-15
Tue,Wed 17:48 Buffalo (BUF) 19:18 Chicago O'Hare (ORD) 3 American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-17 through 2026-03-04
Mon,Thu,Fri 17:50 Buffalo (BUF) 19:20 Chicago O'Hare (ORD) 3 American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-12 through 2026-02-20
Mon,Thu,Fri,Sun 17:50 Buffalo (BUF) 19:20 Chicago O'Hare (ORD) 3 American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-22 through 2026-03-06
Mon-Fri,Sun 17:51 Buffalo (BUF) 19:12 Chicago O'Hare (ORD) 3 American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 2:21 Effective 2026-03-08 through 2026-04-06
Daily 13:52 Buffalo (BUF) 15:01 Chicago O'Hare (ORD) 2 United Airlines UA 4381 Non-stop Canadair CRJ 550 (CR5) 2:09 Effective 2026-02-12 through 2026-03-04
Daily 13:55 Buffalo (BUF) 14:48 Chicago O'Hare (ORD) 2 United Airlines UA 4381 Non-stop Canadair CRJ 550 (CR5) 1:53 Effective from 2026-03-29
Daily 13:59 Buffalo (BUF) 15:04 Chicago O'Hare (ORD) 2 United Airlines UA 4381 Non-stop Canadair CRJ 550 (CR5) 2:05 Valid until 2026-01-05
Mon-Wed 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2 United Airlines UA 4382 Non-stop Canadair CRJ 550 (CR5) 2:07 Effective 2026-02-09 through 2026-02-11
Daily 13:22 Buffalo (BUF) 14:20 Chicago O'Hare (ORD) 3 American Airlines AA 4386 Non-stop Embraer EMB 175 (E75) 1:58 Effective 2026-04-07 through 2026-05-20
Sat 13:59 Buffalo (BUF) 15:04 Chicago O'Hare (ORD) 2 United Airlines UA 4412 Non-stop Canadair CRJ 550 (CR5) 2:05 Effective 2026-01-10 through 2026-02-07
Sun 12:24 Buffalo (BUF) 13:32 Chicago O'Hare (ORD) 3 American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 2:08 Effective 2026-03-08 through 2026-04-05
Tue,Wed 12:28 Buffalo (BUF) 13:52 Chicago O'Hare (ORD) 3 American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 2:24 Effective 2026-02-17 through 2026-03-04
Mon-Fri 12:31 Buffalo (BUF) 13:45 Chicago O'Hare (ORD) 3 American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 2:14 Effective 2026-03-09 through 2026-04-06
Mon,Thu,Fri 12:34 Buffalo (BUF) 14:04 Chicago O'Hare (ORD) 3 American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-12 through 2026-02-20
Mon,Thu,Fri,Sun 12:34 Buffalo (BUF) 14:04 Chicago O'Hare (ORD) 3 American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-22 through 2026-03-06
Daily 12:32 Buffalo (BUF) 13:52 Chicago O'Hare (ORD) 3 American Airlines AA 4447 Non-stop Embraer EMB 175 (E75) 2:20 Valid until 2026-01-05
Fri,Sun 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2 United Airlines UA 4448 Non-stop Canadair CRJ 550 (CR5) 2:07 Effective 2026-01-25 through 2026-02-01
Mon-Thu 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2 United Airlines UA 4482 Non-stop Canadair CRJ 550 (CR5) 2:07 Effective 2026-01-26 through 2026-01-29
Thu 06:02 Buffalo (BUF) 07:20 Chicago O'Hare (ORD) 3 American Airlines AA 4511 Non-stop Embraer EMB 175 (E75) 2:18 Operates only on 2026-01-01
Mon,Tue,Thu,Fri,Sun 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2 United Airlines UA 4573 Non-stop Canadair CRJ 550 (CR5) 2:07 Effective 2026-02-02 through 2026-02-08
Mon,Tue 13:59 Buffalo (BUF) 15:04 Chicago O'Hare (ORD) 2 United Airlines UA 4588 Non-stop Canadair CRJ 550 (CR5) 2:05 Effective 2026-02-09 through 2026-02-10
Sat 06:42 Buffalo (BUF) 08:05 Chicago O'Hare (ORD) 3 American Airlines AA 4595 Non-stop Embraer EMB 175 (E75) 2:23 Operates only on 2026-01-10
Mon-Fri,Sun 07:30 Buffalo (BUF) 08:53 Chicago O'Hare (ORD) 3 American Airlines AA 4595 Non-stop Embraer EMB 175 (E75) 2:23 Effective 2026-01-07 through 2026-01-16
Daily 07:30 Buffalo (BUF) 08:53 Chicago O'Hare (ORD) 3 American Airlines AA 4595 Non-stop Embraer EMB 175 (E75) 2:23 Effective 2026-01-17 through 2026-02-11
Thu 17:24 Buffalo (BUF) 18:33 Chicago O'Hare (ORD) 2 United Airlines UA 4598 Non-stop Canadair CRJ 550 (CR5) 2:09 Operates only on 2026-02-12
Thu 06:00 Buffalo (BUF) 07:27 Chicago O'Hare (ORD) 3 American Airlines AA 4645 Non-stop Embraer EMB 175 (E75) 2:27 Operates only on 2026-02-12
Daily 13:52 Buffalo (BUF) 15:01 Chicago O'Hare (ORD) 2 United Airlines UA 4661 Non-stop Canadair CRJ 550 (CR5) 2:09 Effective 2026-03-05 through 2026-03-28
Daily 05:13 Buffalo (BUF) 06:10 Chicago O'Hare (ORD) 3 American Airlines AA 4665 Non-stop Embraer EMB 175 (E75) 1:57 Effective 2026-04-07 through 2026-05-20
Mon-Fri,Sun 13:59 Buffalo (BUF) 15:04 Chicago O'Hare (ORD) 2 United Airlines UA 4729 Non-stop Canadair CRJ 550 (CR5) 2:05 Effective 2026-01-06 through 2026-02-08
Wed 13:59 Buffalo (BUF) 15:04 Chicago O'Hare (ORD) 2 United Airlines UA 4729 Non-stop Canadair CRJ 550 (CR5) 2:05 Operates only on 2026-02-11
Sun 07:00 Buffalo (BUF) 08:18 Chicago O'Hare (ORD) 3 American Airlines AA 4747 Non-stop Embraer EMB 175 (E75) 2:18 Valid until 2026-01-04
Mon-Wed,Fri-Sun 17:35 Buffalo (BUF) 18:50 Chicago O'Hare (ORD) 2 United Airlines UA 4761 Non-stop Embraer EMB 175 (E7W) 2:15 Valid until 2026-01-05
Mon,Tue,Thu-Sun 18:29 Buffalo (BUF) 19:50 Chicago O'Hare (ORD) 3 American Airlines AA 4801 Non-stop Embraer EMB 175 (E75) 2:21 Valid until 2026-01-05
Mon-Fri,Sun 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2 United Airlines UA 5263 Non-stop Canadair CRJ 550 (CR5) 2:07 Effective 2026-01-06 through 2026-01-23
Wed 17:23 Buffalo (BUF) 18:30 Chicago O'Hare (ORD) 2 United Airlines UA 5263 Non-stop Canadair CRJ 550 (CR5) 2:07 Operates only on 2026-02-04
Sun 17:46 Buffalo (BUF) 18:55 Chicago O'Hare (ORD) 2 United Airlines UA 5376 Non-stop Canadair CRJ 550 (CR5) 2:09 Effective 2026-03-08 through 2026-03-22
Mon,Thu,Fri,Sun 17:24 Buffalo (BUF) 18:35 Chicago O'Hare (ORD) 2 United Airlines UA 5522 Non-stop Embraer EMB 175 (E7W) 2:11 Effective 2026-02-13 through 2026-03-02
Daily 10:50 Buffalo (BUF) 11:55 Chicago O'Hare (ORD) 2 United Airlines UA 5846 Non-stop Embraer EMB 175 (E7W) 2:05 Effective 2026-03-29 through 2026-04-29
Daily 10:50 Buffalo (BUF) 11:45 Chicago O'Hare (ORD) 2 United Airlines UA 5846 Non-stop Canadair CRJ 550 (CR5) 1:55 Effective 2026-04-30 through 2026-05-20

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Parallax here BUF-ORD

1 2 3 4 5 ... 7 8 9

A domestic route departing from the Buffalo airport (BUF) and arriving at Chicago O'Hare airport (ORD).
The flight distance is 472 miles, or 759 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 1:48 and 2:30.

Return (ORD-BUF) flights

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All airlines flying from Buffalo (BUF) to Chicago O'Hare (ORD).

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FLIGHT SCHEDULE

Direct Flights:

American Airlines AA3500

17:03

Buffalo (BUF)

18:00

Chicago O'Hare (ORD) 3

Effective 2026-04-07 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:57, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA3703

11:21

Buffalo (BUF)

12:36

Chicago O'Hare (ORD) 3

Effective 2026-01-06 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA3703

11:22

Buffalo (BUF)

12:37

Chicago O'Hare (ORD) 3

Effective 2026-01-08 through 2026-02-09

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Duration: 2:15, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA3703

11:27

Buffalo (BUF)

12:42

Chicago O'Hare (ORD) 3

Operates only on 2026-01-11

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA3703

11:27

Buffalo (BUF)

12:42

Chicago O'Hare (ORD) 3

Effective 2026-01-25 through 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA4076

17:00

Buffalo (BUF)

18:00

Chicago O'Hare (ORD) 3

Effective 2026-08-05 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4183

17:16

Buffalo (BUF)

18:40

Chicago O'Hare (ORD) 3

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:24, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA4183

17:17

Buffalo (BUF)

18:41

Chicago O'Hare (ORD) 3

Effective 2026-01-24 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:24, non-stop
Embraer EMB 170 / EMB 175 (E70)

Direct Flights:

American Airlines AA4340

06:00

Buffalo (BUF)

07:15

Chicago O'Hare (ORD) 3

Effective 2026-03-14 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:15, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4340

06:05

Buffalo (BUF)

07:20

Chicago O'Hare (ORD) 3

Effective 2026-03-09 through 2026-04-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4349

17:45

Buffalo (BUF)

19:15

Chicago O'Hare (ORD) 3

Operates only on 2026-02-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:30, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4349

17:48

Buffalo (BUF)

19:18

Chicago O'Hare (ORD) 3

Effective 2026-02-17 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:30, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4349

17:50

Buffalo (BUF)

19:20

Chicago O'Hare (ORD) 3

Effective 2026-02-12 through 2026-02-20

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:30, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4349

17:50

Buffalo (BUF)

19:20

Chicago O'Hare (ORD) 3

Effective 2026-02-22 through 2026-03-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:30, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4349

17:51

Buffalo (BUF)

19:12

Chicago O'Hare (ORD) 3

Effective 2026-03-08 through 2026-04-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:21, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4381

13:52

Buffalo (BUF)

15:01

Chicago O'Hare (ORD) 2

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA4381

13:55

Buffalo (BUF)

14:48

Chicago O'Hare (ORD) 2

Effective from 2026-03-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:53, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA4381

13:59

Buffalo (BUF)

15:04

Chicago O'Hare (ORD) 2

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:05, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA4382

17:23

Buffalo (BUF)

18:30

Chicago O'Hare (ORD) 2

Effective 2026-02-09 through 2026-02-11

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4386

13:22

Buffalo (BUF)

14:20

Chicago O'Hare (ORD) 3

Effective 2026-04-07 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:58, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4412

13:59

Buffalo (BUF)

15:04

Chicago O'Hare (ORD) 2

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4420

12:24

Buffalo (BUF)

13:32

Chicago O'Hare (ORD) 3

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:08, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4420

12:28

Buffalo (BUF)

13:52

Chicago O'Hare (ORD) 3

Effective 2026-02-17 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:24, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4420

12:31

Buffalo (BUF)

13:45

Chicago O'Hare (ORD) 3

Effective 2026-03-09 through 2026-04-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:14, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4420

12:34

Buffalo (BUF)

14:04

Chicago O'Hare (ORD) 3

Effective 2026-02-12 through 2026-02-20

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:30, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4420

12:34

Buffalo (BUF)

14:04

Chicago O'Hare (ORD) 3

Effective 2026-02-22 through 2026-03-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:30, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4447

12:32

Buffalo (BUF)

13:52

Chicago O'Hare (ORD) 3

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:20, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4448

17:23

Buffalo (BUF)

18:30

Chicago O'Hare (ORD) 2

Effective 2026-01-25 through 2026-02-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA4482

17:23

Buffalo (BUF)

18:30

Chicago O'Hare (ORD) 2

Effective 2026-01-26 through 2026-01-29

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4511

06:02

Buffalo (BUF)

07:20

Chicago O'Hare (ORD) 3

Operates only on 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:18, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4573

17:23

Buffalo (BUF)

18:30

Chicago O'Hare (ORD) 2

Effective 2026-02-02 through 2026-02-08

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA4588

13:59

Buffalo (BUF)

15:04

Chicago O'Hare (ORD) 2

Effective 2026-02-09 through 2026-02-10

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4595

06:42

Buffalo (BUF)

08:05

Chicago O'Hare (ORD) 3

Operates only on 2026-01-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:23, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4595

07:30

Buffalo (BUF)

08:53

Chicago O'Hare (ORD) 3

Effective 2026-01-07 through 2026-01-16

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:23, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4595

07:30

Buffalo (BUF)

08:53

Chicago O'Hare (ORD) 3

Effective 2026-01-17 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:23, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4598

17:24

Buffalo (BUF)

18:33

Chicago O'Hare (ORD) 2

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4645

06:00

Buffalo (BUF)

07:27

Chicago O'Hare (ORD) 3

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:27, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4661

13:52

Buffalo (BUF)

15:01

Chicago O'Hare (ORD) 2

Effective 2026-03-05 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4665

05:13

Buffalo (BUF)

06:10

Chicago O'Hare (ORD) 3

Effective 2026-04-07 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:57, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4729

13:59

Buffalo (BUF)

15:04

Chicago O'Hare (ORD) 2

Effective 2026-01-06 through 2026-02-08

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:05, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA4729

13:59

Buffalo (BUF)

15:04

Chicago O'Hare (ORD) 2

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

American Airlines AA4747

07:00

Buffalo (BUF)

08:18

Chicago O'Hare (ORD) 3

Valid until 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:18, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA4761

17:35

Buffalo (BUF)

18:50

Chicago O'Hare (ORD) 2

Valid until 2026-01-05

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun

Duration: 2:15, non-stop
Embraer EMB 175 (E7W)

Direct Flights:

American Airlines AA4801

18:29

Buffalo (BUF)

19:50

Chicago O'Hare (ORD) 3

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 2:21, non-stop
Embraer EMB 175 (E75)

Direct Flights:

United Airlines UA5263

17:23

Buffalo (BUF)

18:30

Chicago O'Hare (ORD) 2

Effective 2026-01-06 through 2026-01-23

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA5263

17:23

Buffalo (BUF)

18:30

Chicago O'Hare (ORD) 2

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:07, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA5376

17:46

Buffalo (BUF)

18:55

Chicago O'Hare (ORD) 2

Effective 2026-03-08 through 2026-03-22

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)

Direct Flights:

United Airlines UA5522

17:24

Buffalo (BUF)

18:35

Chicago O'Hare (ORD) 2

Effective 2026-02-13 through 2026-03-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:11, non-stop
Embraer EMB 175 (E7W)

Direct Flights:

United Airlines UA5846

10:50

Buffalo (BUF)

11:55

Chicago O'Hare (ORD) 2

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:05, non-stop
Embraer EMB 175 (E7W)

Direct Flights:

United Airlines UA5846

10:50

Buffalo (BUF)

11:45

Chicago O'Hare (ORD) 2

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:55, non-stop
Canadair CRJ 550 (CR5)

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A domestic route departing from the Buffalo airport (BUF) and arriving at Chicago O'Hare airport (ORD).
The flight distance is 472 miles, or 759 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 1:48 and 2:30.

Return (ORD-BUF) flights

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