American Airlines flights from Chicago O'Hare (ORD) to Buffalo (BUF).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Daily
16:45
Chicago O'Hare (ORD) 3
19:16
Buffalo (BUF) American Airlines AA 403 Non-stop Boeing 737-800 (738) 1:31 Effective 2026-05-21 through 2026-07-01 |
| Daily
16:45
Chicago O'Hare (ORD) 3
19:21
Buffalo (BUF) American Airlines AA 403 Non-stop Boeing 737-800 (738) 1:36 Effective 2026-07-02 through 2026-08-04 |
| Daily
20:25
Chicago O'Hare (ORD) 3
23:10
Buffalo (BUF) American Airlines AA 513 Non-stop Boeing 737-800 (738) 1:45 Effective from 2026-10-05 |
| Daily
18:35
Chicago O'Hare (ORD) 3
21:15
Buffalo (BUF) American Airlines AA 564 Non-stop Airbus A319 (319) 1:40 Effective 2026-07-02 through 2026-08-04 |
| Daily
20:25
Chicago O'Hare (ORD) 3
23:15
Buffalo (BUF) American Airlines AA 564 Non-stop Airbus A319 (319) 1:50 Effective 2026-05-21 through 2026-07-01 |
| Daily
20:25
Chicago O'Hare (ORD) 3
23:03
Buffalo (BUF) American Airlines AA 564 Non-stop Boeing 737-800 (738) 1:38 Effective 2026-09-09 through 2026-10-04 |
| Daily
20:50
Chicago O'Hare (ORD) 3
23:40
Buffalo (BUF) American Airlines AA 564 Non-stop Boeing 737-800 (738) 1:50 Effective 2026-08-05 through 2026-09-08 |
| Tue,Wed
19:49
Chicago O'Hare (ORD) 3
22:21
Buffalo (BUF) American Airlines AA 1065 Non-stop Airbus A319 (319) 1:32 Effective 2026-02-17 through 2026-03-04 |
| Mon,Thu,Fri
20:45
Chicago O'Hare (ORD) 3
23:16
Buffalo (BUF) American Airlines AA 1065 Non-stop Airbus A319 (319) 1:31 Effective 2026-02-12 through 2026-02-20 |
| Mon,Thu-Sun
20:45
Chicago O'Hare (ORD) 3
23:16
Buffalo (BUF) American Airlines AA 1065 Non-stop Airbus A319 (319) 1:31 Effective 2026-02-21 through 2026-03-07 |
| Sat
20:45
Chicago O'Hare (ORD) 3
23:23
Buffalo (BUF) American Airlines AA 1065 Non-stop Airbus A319 (319) 1:38 Effective 2026-03-14 through 2026-04-04 |
| Sun
20:50
Chicago O'Hare (ORD) 3
23:21
Buffalo (BUF) American Airlines AA 1065 Non-stop Airbus A319 (319) 1:31 Operates only on 2026-02-15 |
| Sat
20:55
Chicago O'Hare (ORD) 3
23:26
Buffalo (BUF) American Airlines AA 1065 Non-stop Airbus A319 (319) 1:31 Operates only on 2026-02-14 |
| Daily
09:45
Chicago O'Hare (ORD) 3
12:21
Buffalo (BUF) American Airlines AA 1414 Non-stop Airbus A319 (319) 1:36 Effective 2026-09-09 through 2026-10-04 |
| Mon,Tue,Sun
20:05
Chicago O'Hare (ORD) 3
22:44
Buffalo (BUF) American Airlines AA 1460 Non-stop Airbus A319 (319) 1:39 Valid until 2026-01-05 |
| Thu
20:19
Chicago O'Hare (ORD) 3
22:57
Buffalo (BUF) American Airlines AA 1460 Non-stop Airbus A319 (319) 1:38 Operates only on 2026-01-01 |
| Sat
14:28
Chicago O'Hare (ORD) 3
17:04
Buffalo (BUF) American Airlines AA 3342 Non-stop Embraer EMB 175 (E75) 1:36 Operates only on 2026-02-14 |
| Sat
15:18
Chicago O'Hare (ORD) 3
17:54
Buffalo (BUF) American Airlines AA 3342 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-02-21 through 2026-03-07 |
| Tue,Wed
08:09
Chicago O'Hare (ORD) 3
10:51
Buffalo (BUF) American Airlines AA 3344 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:42 Effective 2026-01-06 through 2026-02-11 |
| Mon,Thu-Sat
08:10
Chicago O'Hare (ORD) 3
10:52
Buffalo (BUF) American Airlines AA 3344 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:42 Effective 2026-01-08 through 2026-02-09 |
| Sun
08:15
Chicago O'Hare (ORD) 3
10:57
Buffalo (BUF) American Airlines AA 3344 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:42 Operates only on 2026-01-11 |
| Sun
08:15
Chicago O'Hare (ORD) 3
10:57
Buffalo (BUF) American Airlines AA 3344 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:42 Effective 2026-01-25 through 2026-02-08 |
| Daily
13:10
Chicago O'Hare (ORD) 3
15:52
Buffalo (BUF) American Airlines AA 3380 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-09-09 through 2026-10-04 |
| Sat
15:40
Chicago O'Hare (ORD) 3
18:19
Buffalo (BUF) American Airlines AA 3382 Non-stop Embraer EMB 175 (E75) 1:39 Effective 2026-03-14 through 2026-04-04 |
| Daily
13:10
Chicago O'Hare (ORD) 3
15:52
Buffalo (BUF) American Airlines AA 3401 Non-stop Embraer EMB 175 (E75) 1:42 Effective from 2026-10-05 |
| Daily
08:00
Chicago O'Hare (ORD) 3
10:41
Buffalo (BUF) American Airlines AA 3410 Non-stop Embraer EMB 175 (E75) 1:41 Effective from 2026-10-05 |
| Daily
08:15
Chicago O'Hare (ORD) 3
10:54
Buffalo (BUF) American Airlines AA 3410 Non-stop Embraer EMB 175 (E75) 1:39 Effective 2026-08-05 through 2026-09-08 |
| Daily
08:00
Chicago O'Hare (ORD) 3
10:35
Buffalo (BUF) American Airlines AA 3444 Non-stop Embraer EMB 175 (E75) 1:35 Effective 2026-05-21 through 2026-07-01 |
| Daily
08:00
Chicago O'Hare (ORD) 3
10:44
Buffalo (BUF) American Airlines AA 3444 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-07-02 through 2026-08-04 |
| Daily
13:10
Chicago O'Hare (ORD) 3
15:42
Buffalo (BUF) American Airlines AA 3445 Non-stop Embraer EMB 175 (E75) 1:32 Effective 2026-05-21 through 2026-07-01 |
| Daily
13:10
Chicago O'Hare (ORD) 3
15:44
Buffalo (BUF) American Airlines AA 3445 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:34 Effective 2026-07-02 through 2026-08-04 |
| Daily
06:40
Chicago O'Hare (ORD) 3
09:14
Buffalo (BUF) American Airlines AA 3497 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:34 Effective 2026-04-07 through 2026-05-20 |
| Daily
11:40
Chicago O'Hare (ORD) 3
14:12
Buffalo (BUF) American Airlines AA 3498 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:32 Effective 2026-04-07 through 2026-05-20 |
| Daily
13:10
Chicago O'Hare (ORD) 3
15:38
Buffalo (BUF) American Airlines AA 3500 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:28 Effective 2026-04-07 through 2026-05-20 |
| Mon-Fri,Sun
13:54
Chicago O'Hare (ORD) 3
16:35
Buffalo (BUF) American Airlines AA 3691 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:41 Effective 2026-01-06 through 2026-02-11 |
| Sat
13:59
Chicago O'Hare (ORD) 3
16:40
Buffalo (BUF) American Airlines AA 3691 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:41 Effective 2026-01-24 through 2026-02-07 |
| Daily
13:48
Chicago O'Hare (ORD) 3
16:24
Buffalo (BUF) American Airlines AA 4076 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-08-05 through 2026-09-08 |
| Mon-Fri,Sun
20:49
Chicago O'Hare (ORD) 3
23:31
Buffalo (BUF) American Airlines AA 4336 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-03-08 through 2026-04-06 |
| Sun
14:34
Chicago O'Hare (ORD) 3
17:15
Buffalo (BUF) American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 1:41 Operates only on 2026-02-15 |
| Mon-Fri
14:37
Chicago O'Hare (ORD) 3
17:18
Buffalo (BUF) American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 1:41 Effective 2026-02-12 through 2026-02-20 |
| Mon-Fri,Sun
14:37
Chicago O'Hare (ORD) 3
17:18
Buffalo (BUF) American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 1:41 Effective 2026-02-22 through 2026-03-06 |
| Mon-Fri,Sun
14:38
Chicago O'Hare (ORD) 3
17:21
Buffalo (BUF) American Airlines AA 4349 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-03-08 through 2026-04-06 |
| Daily
08:00
Chicago O'Hare (ORD) 3
10:46
Buffalo (BUF) American Airlines AA 4386 Non-stop Embraer EMB 175 (E75) 1:46 Effective 2026-04-07 through 2026-05-20 |
| Sat
16:29
Chicago O'Hare (ORD) 3
19:16
Buffalo (BUF) American Airlines AA 4402 Non-stop Embraer EMB 175 (E75) 1:47 Operates only on 2026-01-17 |
| Daily
21:05
Chicago O'Hare (ORD) 3
23:48
Buffalo (BUF) American Airlines AA 4402 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-01-06 through 2026-01-16 |
| Daily
21:05
Chicago O'Hare (ORD) 3
23:48
Buffalo (BUF) American Airlines AA 4402 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-01-18 through 2026-02-11 |
| Tue,Wed
09:00
Chicago O'Hare (ORD) 3
11:44
Buffalo (BUF) American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-02-17 through 2026-03-04 |
| Thu
09:05
Chicago O'Hare (ORD) 3
11:49
Buffalo (BUF) American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 1:44 Operates only on 2026-02-12 |
| Mon-Fri,Sun
09:05
Chicago O'Hare (ORD) 3
11:54
Buffalo (BUF) American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 1:49 Effective 2026-03-08 through 2026-04-06 |
| Mon,Thu,Fri
09:20
Chicago O'Hare (ORD) 3
12:04
Buffalo (BUF) American Airlines AA 4420 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-02-13 through 2026-02-20 |
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- A domestic route departing from the Chicago O'Hare airport (ORD) and arriving at Buffalo airport (BUF).
- The flight distance is 472 miles, or 759 km.
- The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . 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 1:28 and 1:55.
