Qatar Airways allows only one carry-on item in economy, so plan your packing carefully.
Qatar Airways offers extra legroom seats for a fee, typically in emergency exit rows and bulkhead seats.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $169 (Frontier) |
One-way from | $55 (Frontier) |
Popular in | February |
Cheapest in | August |
Average price | $319 |
Good round-trip deal | $326 or less |
Good one-way deal | $202 or less |
Fly from
Fly to
Route
Depart
Return
Price
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Fri 11/7
9:53 pm-3:08 pm
1 stop18h 15m
Chicago O'Hare Intl
Sun 11/9
5:25 am-6:04 pm
1 stop11h 39m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Wed 1/7
2:45 pm-7:45 pm
1 stop6h 00m
Chicago O'Hare Intl
Fri 1/9
10:45 am-6:50 pm
1 stop7h 05m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Sat 11/22
11:47 am-9:57 pm
1 stop11h 10m
Chicago O'Hare Intl
Mon 11/24
6:15 pm-5:52 pm
1 stop22h 37m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Tue 11/18
6:00 am-10:35 am
1 stop5h 35m
Chicago O'Hare Intl
Thu 11/20
1:43 pm-9:51 pm
1 stop7h 08m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Fri 1/16
2:45 pm-7:45 pm
1 stop6h 00m
Chicago O'Hare Intl
Sun 1/18
2:05 pm-11:55 pm
1 stop8h 50m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Sat 11/22
11:47 am-9:57 pm
1 stop11h 10m
Chicago O'Hare Intl
Mon 11/24
9:22 pm-5:52 pm
2 stops19h 30m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Sat 12/13
5:40 pm-6:46 pm
Nonstop2h 06m
Chicago O'Hare Intl
Tue 12/16
10:35 am-1:12 pm
Nonstop1h 37m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Wed 11/26
6:20 am-7:20 am
Nonstop2h 00m
Chicago O'Hare Intl
Thu 11/27
5:00 am-11:55 am
1 stop5h 55m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Sat 11/22
7:05 pm-10:56 pm
1 stop4h 51m
Chicago O'Hare Intl
Mon 11/24
8:59 pm-11:36 pm
Nonstop1h 37m
BuffaloChicago
BUF - ORD
BUFORD
Buffalo
Thu 11/20
2:01 pm-10:36 pm
1 stop9h 35m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, July is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of $77). Flying from Buffalo to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Buffalo to Chicago O'Hare Intl Airport in the evening. By choosing this option you can save up to 61% on the cost of your flight, compared to a flight at noon.
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Anonymous,Oct 2025
YUL - ORD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$198 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$161 | Average$330 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$175 | Average$377 | FlexibilityNo cancel fee | On-time69% |