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 48 minutes.

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Schedules

American Airlines

Non-stop with American Airlines

  • Total flight time: 1 hour and 48 minutes
  • One World Alliance
  • Chicago is a American Airlines hub.
  • 28 flights per week
  • Embraer 175
    Canadair (Bombardier) Regional Jet 700 and Challenger 870
    Airbus A319
    Boeing 737-800 Passenger
  • First class available
ORD
Direct
BUF
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
AA4413
06:46
06:46
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AA4480
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06:50
06:50
06:50
06:50
06:50
AA4913
13:25
13:25
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AA564
19:59
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14:19
14:19
14:19
14:24
14:19
AA4474
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21:10
21:10
21:10
21:10
21:10
AA403
21:19
21:19
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ORD - BUF

The timetable & schedule information was updated at 2026-04-21

United Airlines

Non-stop with United Airlines

  • Total flight time: 1 hour and 43 minutes
  • Chicago is a United Airlines hub (Largest hub ).
  • 28 flights per week
  • Airbus A319
    Canadair (Bombardier) Regional Jet 550
    Boeing 737-900 Passenger
    Boeing 737-700 Passenger
    Embraer 175 (Enhanced Winglets)
  • Business and first class available
ORD
Direct
BUF
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA2753
07:15
07:15
07:15
07:15
07:15
07:15
07:15
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
UA5763
18:17
18:17
18:17
18:17
18:17
18:17
18:17
SHOW RETURN SCHEDULE
CHECK PRICES FOR ORD - BUF

The timetable & schedule information was updated at 2026-04-21

Delta Air Lines

Via Detroit with Delta Air Lines

  • Total flight time: 3h 03m - 5h 40m.
  • Sky Team Alliance
  • 102 flights per week
ORD
 
Via DTW
 
BUF
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
DL2039
DL3636
07:01
07:01
07:01
07:01
07:01
07:01
07:01
DL4456
DL3642
08:52
08:52
08:52
08:52
08:52
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08:52
DL1716
DL3637
14:07
14:07
14:07
14:07
14:07
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14:07
DL2358
DL978
17:18
17:18
17:18
17:18
17:18
17:18
17:18
DL1084
DL978
19:17
19:17
19:17
19:17
19:17
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19:17
SHOW RETURN SCHEDULE
CHECK PRICES FOR ORD - BUF

The timetable & schedule information was updated at 2026-04-21

American Airlines

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 175
    Canadair (Bombardier) Regional Jet 700 and Challenger 870
    Airbus A319
    Boeing 737-800 Passenger
ORD
 
Via DCA
 
BUF
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
AA4339
AA4597
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06:00
06:00
06:00
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06:00
AA4339
AA5104
06:00
06:00
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AA4339
AA5075
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06:00
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AA2965
AA5104
07:05
07:05
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AA3103
AA4597
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09:40
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AA2398
AA5106
09:50
09:50
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AA3103
AA5075
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09:56
09:56
09:56
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09:56
AA1187
AA5075
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10:53
10:53
10:53
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10:42
AA4360
AA5106
10:46
10:46
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AA1187
AA4597
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10:53
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AA2769
AA5268
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14:55
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AA1787
AA4131
17:51
17:51
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AA489
AA5268
----
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17:53
17:53
17:53
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17:53
SHOW RETURN SCHEDULE
CHECK PRICES FOR ORD - BUF

The timetable & schedule information was updated at 2026-04-21

United Airlines

Via Dulles with United Airlines

  • Total flight time: 3h 51m - 6h 32m.
  • Chicago is a United Airlines hub (Largest hub ).
  • 113 flights per week
  • Airbus A319
    Canadair (Bombardier) Regional Jet 550
    Boeing 737-900 Passenger
    Boeing 737-700 Passenger
    Embraer 175 (Enhanced Winglets)
ORD
 
Via IAD
 
BUF
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA2277
UA4335
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08:40
08:40
08:40
08:40
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08:40
UA2277
UA4485
08:40
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UA293
UA4823
13:18
13:18
13:18
13:18
13:18
13:18
13:18
UA2202
UA3516
18:12
18:12
18:12
18:12
18:12
18:12
18:12
SHOW RETURN SCHEDULE
CHECK PRICES FOR ORD - BUF

The timetable & schedule information was updated at 2026-04-21

United Airlines

Via Washington with United Airlines

  • Total flight time: 6h 24m - 6h 25m.
  • Chicago is a United Airlines hub (Largest hub ).
  • 14 flights per week
  • Airbus A319
    Canadair (Bombardier) Regional Jet 550
    Boeing 737-900 Passenger
    Boeing 737-700 Passenger
    Embraer 175 (Enhanced Winglets)
ORD
 
Via DCA
 
BUF
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA482
UA4485
07:00
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UA482
UA4335
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07:00
07:00
07:00
07:00
----
07:00
SHOW RETURN SCHEDULE
CHECK PRICES FOR ORD - BUF

The timetable & schedule information was updated at 2026-04-21

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Flight data on this page was last updated on 2026-07-13
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