Cheap flights from Chicago to Buffalo from $126

If you aren’t able to travel during the month of January, then book flights to Buffalo from Chicago during October instead. Flights to Buffalo in October, while not as cheap as those in January, still average around $324.

Our data shows that Saturday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $349. Flights from Chicago to Buffalo on a Monday will generally be more expensive and average around $470. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

At noon is the cheapest time of day to fly from Chicago to Buffalo when you can find flight prices for as low as $353. Flying to Buffalo at noon is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Buffalo, so prices are often more expensive at around $427 per ticket.

Fly from Chicago O'Hare Intl to Buffalo for the best Chicago - Buffalo flight prices

You are more likely to see cheaper flights to Buffalo from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $375 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Chicago for as low as $299 on momondo.

There are 4 cabin classes available to choose from on Chicago to Buffalo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 7% on your flight if you consider stops on a Chicago to Buffalo flight.

As of September 2026, prices for Chicago to Buffalo flights are approximately 108% more expensive when compared to flights at the same time last year.

Southwest, United Airlines, and Delta are the most popular carriers operating from Chicago to Buffalo

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Buffalo from Chicago according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Buffalo. Keep in mind that there are 4 different airlines that fly to Buffalo on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 20 flights per day flying from Chicago to Buffalo. The most common time of day flights depart is 2:00PM, with 39% of flights taking off in the evening.

The number of flights available between Chicago and Buffalo is 145 per week as of September 2026. The most frequent departure day is Wed, with 24% of weekly flights leaving on this day.