Alaska Airlines flights from Buffalo (BUF) to Chicago O'Hare (ORD).
| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Daily
10:16
Buffalo (BUF)
11:10
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:54 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 3497) |
| Tue,Wed
11:21
Buffalo (BUF)
12:36
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4206 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by American Airlines.(AA 3703) |
| Mon,Thu-Sat
11:22
Buffalo (BUF)
12:37
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4206 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Effective 2026-01-08 through 2026-02-09 Codeshare flight, operated by American Airlines.(AA 3703) |
| Sun
11:27
Buffalo (BUF)
12:42
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4206 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Operates only on 2026-01-11 Codeshare flight, operated by American Airlines.(AA 3703) |
| Sun
11:27
Buffalo (BUF)
12:42
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4206 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:15 Effective 2026-01-25 through 2026-02-08 Codeshare flight, operated by American Airlines.(AA 3703) |
| Mon-Wed,Fri
06:00
Buffalo (BUF)
06:59
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4232 Non-stop Airbus A319 (319) 1:59 Valid until 2026-01-05 Codeshare flight, operated by American Airlines.(AA 1360) |
| Daily
06:00
Buffalo (BUF)
07:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4232 Non-stop Airbus A319 (319) 2:05 Effective 2026-02-13 through 2026-03-07 Codeshare flight, operated by American Airlines.(AA 853) |
| Sun
07:00
Buffalo (BUF)
08:18
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4232 Non-stop Embraer EMB 175 (E75) 2:18 Valid until 2026-01-04 Codeshare flight, operated by American Airlines.(AA 4747) |
| Daily
15:13
Buffalo (BUF)
16:10
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4373 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:57 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 3498) |
| Daily
08:06
Buffalo (BUF)
09:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4382 Non-stop Boeing 737-800 (738) 1:59 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 2112) |
| Daily
08:11
Buffalo (BUF)
09:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4382 Non-stop Boeing 737-800 (738) 1:54 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 2112) |
| Sat
18:49
Buffalo (BUF)
20:02
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4382 Non-stop Embraer EMB 175 (E75) 2:13 Effective 2026-03-14 through 2026-04-04 Codeshare flight, operated by American Airlines.(AA 3342) |
| Daily
11:24
Buffalo (BUF)
12:24
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4409 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 3410) |
| Daily
12:32
Buffalo (BUF)
13:52
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4443 Non-stop Embraer EMB 175 (E75) 2:20 Valid until 2026-01-05 Codeshare flight, operated by American Airlines.(AA 4447) |
| Daily
17:01
Buffalo (BUF)
18:00
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4453 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:59 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 3445) |
| Daily
17:04
Buffalo (BUF)
18:00
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4453 Non-stop Embraer EMB 175 (E75) 1:56 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 3445) |
| Mon,Tue,Thu-Sun
18:29
Buffalo (BUF)
19:50
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4459 Non-stop Embraer EMB 175 (E75) 2:21 Valid until 2026-01-05 Codeshare flight, operated by American Airlines.(AA 4801) |
| Daily
05:13
Buffalo (BUF)
06:10
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4604 Non-stop Embraer EMB 175 (E75) 1:57 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 4665) |
| Daily
17:00
Buffalo (BUF)
18:00
Chicago O'Hare (ORD) 3 Alaska Airlines AS 4617 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 4076) |
| Daily
11:46
Buffalo (BUF)
12:40
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6184 Non-stop Embraer EMB 175 (E75) 1:54 Effective from 2026-10-05 Codeshare flight, operated by American Airlines.(AA 3410) |
| Sun
12:24
Buffalo (BUF)
13:32
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6240 Non-stop Embraer EMB 175 (E75) 2:08 Effective 2026-03-08 through 2026-04-05 Codeshare flight, operated by American Airlines.(AA 4420) |
| Tue,Wed
12:28
Buffalo (BUF)
13:52
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6240 Non-stop Embraer EMB 175 (E75) 2:24 Effective 2026-02-17 through 2026-03-04 Codeshare flight, operated by American Airlines.(AA 4420) |
| Mon-Fri
12:31
Buffalo (BUF)
13:45
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6240 Non-stop Embraer EMB 175 (E75) 2:14 Effective 2026-03-09 through 2026-04-06 Codeshare flight, operated by American Airlines.(AA 4420) |
| Mon,Thu,Fri
12:34
Buffalo (BUF)
14:04
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6240 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-12 through 2026-02-20 Codeshare flight, operated by American Airlines.(AA 4420) |
| Mon,Thu,Fri,Sun
12:34
Buffalo (BUF)
14:04
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6240 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-22 through 2026-03-06 Codeshare flight, operated by American Airlines.(AA 4420) |
| Daily
13:22
Buffalo (BUF)
14:15
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6327 Non-stop Airbus A319 (319) 1:53 Effective 2026-09-09 through 2026-10-04 Codeshare flight, operated by American Airlines.(AA 1414) |
| Daily
13:22
Buffalo (BUF)
14:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6412 Non-stop Embraer EMB 175 (E75) 1:58 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 3444) |
| Daily
13:25
Buffalo (BUF)
14:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6412 Non-stop Embraer EMB 175 (E75) 1:55 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 3444) |
| Sun
17:45
Buffalo (BUF)
19:15
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6417 Non-stop Embraer EMB 175 (E75) 2:30 Operates only on 2026-02-15 Codeshare flight, operated by American Airlines.(AA 4349) |
| Tue,Wed
17:48
Buffalo (BUF)
19:18
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6417 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-17 through 2026-03-04 Codeshare flight, operated by American Airlines.(AA 4349) |
| Mon,Thu,Fri
17:50
Buffalo (BUF)
19:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6417 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-12 through 2026-02-20 Codeshare flight, operated by American Airlines.(AA 4349) |
| Mon,Thu,Fri,Sun
17:50
Buffalo (BUF)
19:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6417 Non-stop Embraer EMB 175 (E75) 2:30 Effective 2026-02-22 through 2026-03-06 Codeshare flight, operated by American Airlines.(AA 4349) |
| Mon-Fri,Sun
17:51
Buffalo (BUF)
19:12
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6417 Non-stop Embraer EMB 175 (E75) 2:21 Effective 2026-03-08 through 2026-04-06 Codeshare flight, operated by American Airlines.(AA 4349) |
| Daily
13:22
Buffalo (BUF)
14:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6419 Non-stop Embraer EMB 175 (E75) 1:58 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 4386) |
| Daily
17:03
Buffalo (BUF)
18:00
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6430 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:57 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 3500) |
| Daily
05:13
Buffalo (BUF)
06:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Airbus A319 (319) 1:52 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 1195) |
| Daily
05:16
Buffalo (BUF)
06:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Airbus A319 (319) 1:49 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 1195) |
| Thu
06:00
Buffalo (BUF)
07:27
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:27 Operates only on 2026-02-12 Codeshare flight, operated by American Airlines.(AA 4645) |
| Sat
06:00
Buffalo (BUF)
07:15
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-14 through 2026-04-04 Codeshare flight, operated by American Airlines.(AA 4340) |
| Thu
06:02
Buffalo (BUF)
07:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:18 Operates only on 2026-01-01 Codeshare flight, operated by American Airlines.(AA 4511) |
| Mon-Fri
06:05
Buffalo (BUF)
07:20
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-09 through 2026-04-06 Codeshare flight, operated by American Airlines.(AA 4340) |
| Sun
06:09
Buffalo (BUF)
07:11
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Airbus A319 (319) 2:02 Effective 2026-03-08 through 2026-04-05 Codeshare flight, operated by American Airlines.(AA 2156) |
| Daily
06:26
Buffalo (BUF)
07:25
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Boeing 737-800 (738) 1:59 Effective from 2026-10-05 Codeshare flight, operated by American Airlines.(AA 1195) |
| Daily
06:30
Buffalo (BUF)
07:25
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Boeing 737-800 (738) 1:55 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 1195) |
| Sat
06:42
Buffalo (BUF)
08:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:23 Operates only on 2026-01-10 Codeshare flight, operated by American Airlines.(AA 4595) |
| Mon-Fri,Sun
07:30
Buffalo (BUF)
08:53
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:23 Effective 2026-01-07 through 2026-01-16 Codeshare flight, operated by American Airlines.(AA 4595) |
| Daily
07:30
Buffalo (BUF)
08:53
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Embraer EMB 175 (E75) 2:23 Effective 2026-01-17 through 2026-02-11 Codeshare flight, operated by American Airlines.(AA 4595) |
| Tue
08:00
Buffalo (BUF)
09:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Airbus A319 (319) 2:05 Operates only on 2026-01-06 Codeshare flight, operated by American Airlines.(AA 2155) |
| Daily
08:11
Buffalo (BUF)
09:05
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6540 Non-stop Boeing 737-800 (738) 1:54 Effective 2026-09-09 through 2026-10-04 Codeshare flight, operated by American Airlines.(AA 1195) |
| Sat
17:34
Buffalo (BUF)
18:50
Chicago O'Hare (ORD) 3 Alaska Airlines AS 6789 Non-stop Embraer EMB 175 (E75) 2:16 Operates only on 2026-02-14 Codeshare flight, operated by American Airlines.(AA 3342) |
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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 1:49 and 2:30.
