Airlines with flights from Chicago to Buffalo
There are three airlines with scheduled flights between ORD and BUF. Both American Airlines and United operates non-stop flights from Chicago O'Hare to Buffalo Niagara International and the flight time is 1 hour and 45 minutes.
There are three airlines with scheduled flights between ORD and BUF. Both American Airlines and United operates non-stop flights from Chicago O'Hare to Buffalo Niagara International and the flight time is 1 hour and 45 minutes. Choose airline
Direct
Non-stop
1h 45min
Direct
Non-stop
1h 46min
Via Detroit
3h 3min
Via Washington
3h 50min
Via Dulles
3h 51min
Via Washington
6h 24min
Schedules
Non-stop with American Airlines
-
Total flight time: 1 hour and 45 minutes
-
One World Alliance
-
Chicago is a American Airlines hub.
-
33 flights per week
-
Embraer 175Canadair (Bombardier) Regional Jet 700 and Challenger 870Boeing 737-800 PassengerAirbus A319
-
First class available
ORD
Direct
BUF
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AA4413
06:40
06:40
06:40
06:40
06:40
06:40
06:40
AA4913
13:38
13:38
13:38
13:38
13:38
13:40
13:38
AA564
19:10
19:10
19:10
19:10
19:10
19:11
19:10
AA403
22:01
22:01
22:01
22:01
22:01
22:00
22:01
The timetable & schedule information was updated at 2026-04-21
Non-stop with United Airlines
-
Total flight time: 1 hour and 46 minutes
-
Chicago is a United Airlines hub (Largest hub ).
-
28 flights per week
-
Canadair (Bombardier) Regional JetCanadair (Bombardier) Regional Jet 550Boeing 737-900 PassengerAirbus A319
-
Business and first class available
ORD
Direct
BUF
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA5690
07:27
07:27
07:27
07:27
07:27
07:25
07:27
UA4382
10:25
10:25
10:25
10:25
10:25
10:25
10:25
UA2226
13:55
13:55
13:55
13:55
13:55
13:55
13:55
UA1335
18:17
18:17
18:17
18:17
18:17
18:17
18:17
The timetable & schedule information was updated at 2026-04-21
Via Detroit with Delta Air Lines
-
Total flight time: 3h 03m - 5h 40m.
-
Sky Team Alliance
-
102 flights per week
ORD
Via DTW
BUF
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL2039
DL3636
DL3636
07:01
07:01
07:01
07:01
07:01
07:01
07:01
DL4456
DL3642
DL3642
08:52
08:52
08:52
08:52
08:52
----
08:52
DL1716
DL3637
DL3637
13:25
14:07
14:07
14:07
14:07
----
14:07
DL2358
DL978
DL978
17:22
17:22
17:22
17:22
17:22
17:22
17:22
DL1084
DL978
DL978
19:17
19:17
19:17
19:17
19:17
----
19:17
The timetable & schedule information was updated at 2026-04-21
Via Washington with American Airlines
-
Total flight time: 3h 50m - 6h 19m.
-
One World Alliance
-
Chicago is a American Airlines hub.
-
93 flights per week
-
Embraer 175Canadair (Bombardier) Regional Jet 700 and Challenger 870Boeing 737-800 PassengerAirbus A319
ORD
Via DCA
BUF
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AA4339
AA5104
AA5104
06:00
06:00
06:00
06:00
06:00
06:00
----
AA4552
AA5104
AA5104
----
----
----
----
----
----
06:00
AA2965
AA5104
AA5104
07:10
07:10
07:10
07:10
07:10
----
07:10
AA2398
AA5106
AA5106
09:53
09:53
09:53
09:52
09:52
09:52
09:52
AA4339
AA5106
AA5106
----
----
----
----
----
----
10:29
AA4360
AA5106
AA5106
10:41
10:41
10:41
10:41
10:41
----
----
AA4789
AA5106
AA5106
----
----
----
----
----
10:42
----
AA2769
AA4638
AA4638
----
----
----
----
----
14:57
----
AA1787
AA5054
AA5054
17:56
17:56
17:56
17:56
17:56
----
17:56
The timetable & schedule information was updated at 2026-04-21
Via Dulles with United Airlines
-
Total flight time: 3h 51m - 6h 32m.
-
Chicago is a United Airlines hub (Largest hub ).
-
113 flights per week
-
Canadair (Bombardier) Regional JetCanadair (Bombardier) Regional Jet 550Boeing 737-900 PassengerAirbus A319
ORD
Via IAD
BUF
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA2277
UA3649
UA3649
----
----
----
----
08:40
----
08:40
UA2277
UA4335
UA4335
08:40
08:40
08:40
08:40
----
----
----
UA293
UA4823
UA4823
13:18
13:18
13:18
13:18
13:18
----
13:18
UA293
UA3546
UA3546
----
----
----
----
----
13:18
----
UA2202
UA3516
UA3516
18:12
18:12
18:12
18:12
18:12
18:12
18:12
The timetable & schedule information was updated at 2026-04-21
Via Washington with United Airlines
-
Total flight time: 6h 24m - 6h 25m.
-
Chicago is a United Airlines hub (Largest hub ).
-
14 flights per week
-
Canadair (Bombardier) Regional JetCanadair (Bombardier) Regional Jet 550Boeing 737-900 PassengerAirbus A319
ORD
Via DCA
BUF
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA482
UA4335
UA4335
07:00
07:00
07:00
07:00
----
----
----
The timetable & schedule information was updated at 2026-04-21
