
Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Chicago
- Delta
Delta
- JetBlue Airways
JetBlue Airways
- Frontier Airlines
Frontier Airlines
- American Airlines
American Airlines
- Southwest Airlines
Southwest Airlines
- United
United
Cheap Flights from Buffalo to Chicago (BUF-CHI)
Prices were available within the past 7 days and start at $64 for one-way flights and $127 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Buffalo (BUF) to Chicago (CHI)
August is typically the cheapest month to fly
Alternative airports near Chicago
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Buffalo Niagara Intl. |
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Destination airport | O'Hare Intl. |
Roundtrip price | $127 |
Distance | 471 mi |
Buffalo to Chicago Flights
The cheapest times to fly from Buffalo to Chicago
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Chicago are during the month of December. You can find some of the cheapest flights from Buffalo to Chicago with Expedia's search tool and vast selection of airlines.