ANA flights from Chicago O'Hare (ORD) to Buffalo (BUF).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 17:50 Chicago O'Hare (ORD) 1 20:29 Buffalo (BUF)
ANA NH 7074 Non-stop Airbus A319 (319) 1:39 Effective 2026-01-06 through 2026-02-06
Codeshare flight, operated by United Airlines.(UA 1946)
Sat 17:50 Chicago O'Hare (ORD) 1 20:29 Buffalo (BUF)
ANA NH 7074 Non-stop Boeing 737-800 (738) 1:39 Operates only on 2026-02-07
Codeshare flight, operated by United Airlines.(UA 1946)
Mon-Wed,Sun 17:50 Chicago O'Hare (ORD) 1 20:29 Buffalo (BUF)
ANA NH 7074 Non-stop Airbus A319 (319) 1:39 Effective 2026-02-08 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 1946)
Daily 17:50 Chicago O'Hare (ORD) 1 20:31 Buffalo (BUF)
ANA NH 7074 Non-stop Boeing 737-700 (73G) 1:41 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 1335)
Daily 17:50 Chicago O'Hare (ORD) 1 20:31 Buffalo (BUF)
ANA NH 7074 Non-stop Boeing 737 MAX 8 (7M8) 1:41 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 1335)
Daily 18:02 Chicago O'Hare (ORD) 1 20:54 Buffalo (BUF)
ANA NH 7074 Non-stop Airbus A320 (320) 1:52 Valid until 2026-01-04
Codeshare flight, operated by United Airlines.(UA 1335)
Mon 18:02 Chicago O'Hare (ORD) 1 20:54 Buffalo (BUF)
ANA NH 7074 Non-stop Airbus A319 (319) 1:52 Operates only on 2026-01-05
Codeshare flight, operated by United Airlines.(UA 1335)
Daily 18:05 Chicago O'Hare (ORD) 1 20:46 Buffalo (BUF)
ANA NH 7074 Non-stop Airbus A319 (319) 1:41 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 1335Z)
Daily 18:10 Chicago O'Hare (ORD) 1 20:51 Buffalo (BUF)
ANA NH 7074 Non-stop Airbus A319 (319) 1:41 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 1335)
Daily 10:30 Chicago O'Hare (ORD) 2 13:12 Buffalo (BUF)
ANA NH 7400 Non-stop Canadair CRJ 550 (CR5) 1:42 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 4382)
Daily 10:35 Chicago O'Hare (ORD) 2 13:24 Buffalo (BUF)
ANA NH 7400 Non-stop Canadair CRJ 550 (CR5) 1:49 Valid until 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4382)
Daily 10:35 Chicago O'Hare (ORD) 2 13:17 Buffalo (BUF)
ANA NH 7400 Non-stop Canadair CRJ 550 (CR5) 1:42 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 5428Z)
Daily 10:35 Chicago O'Hare (ORD) 2 13:10 Buffalo (BUF)
ANA NH 7400 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective from 2026-03-29
Codeshare flight, operated by United Airlines.(UA 4382)




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ANA flights from Chicago O'Hare (ORD) to Buffalo (BUF).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
ANA NH7074
17:50
Chicago O'Hare (ORD) 1

20:29
Buffalo (BUF)
Effective 2026-01-06 through 2026-02-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1946)
Duration: 1:39, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
ANA NH7074
17:50
Chicago O'Hare (ORD) 1

20:29
Buffalo (BUF)
Operates only on 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1946)
Duration: 1:39, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
ANA NH7074
17:50
Chicago O'Hare (ORD) 1

20:29
Buffalo (BUF)
Effective 2026-02-08 through 2026-02-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1946)
Duration: 1:39, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
ANA NH7074
17:50
Chicago O'Hare (ORD) 1

20:31
Buffalo (BUF)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1335)
Duration: 1:41, non-stop
Boeing 737-700 (73G)
Direct Codeshare Flights:
ANA NH7074
17:50
Chicago O'Hare (ORD) 1

20:31
Buffalo (BUF)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1335)
Duration: 1:41, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
ANA NH7074
18:02
Chicago O'Hare (ORD) 1

20:54
Buffalo (BUF)
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1335)
Duration: 1:52, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
ANA NH7074
18:02
Chicago O'Hare (ORD) 1

20:54
Buffalo (BUF)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1335)
Duration: 1:52, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
ANA NH7074
18:05
Chicago O'Hare (ORD) 1

20:46
Buffalo (BUF)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 1335Z)
Duration: 1:41, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
ANA NH7074
18:10
Chicago O'Hare (ORD) 1

20:51
Buffalo (BUF)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1335)
Duration: 1:41, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
ANA NH7400
10:30
Chicago O'Hare (ORD) 2

13:12
Buffalo (BUF)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4382)
Duration: 1:42, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
ANA NH7400
10:35
Chicago O'Hare (ORD) 2

13:24
Buffalo (BUF)
Valid until 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4382)
Duration: 1:49, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
ANA NH7400
10:35
Chicago O'Hare (ORD) 2

13:17
Buffalo (BUF)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.(UA 5428Z)
Duration: 1:42, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
ANA NH7400
10:35
Chicago O'Hare (ORD) 2

13:10
Buffalo (BUF)
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4382)
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
  • 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 1:35 and 1:52.
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