Cheap flights from Chicago to Buffalo from $109

If you aren’t able to travel during the month of January, then book flights to Buffalo from Chicago during November instead. Flights to Buffalo in November, while not as cheap as those in January, still average around $343.

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 $485. 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 $354. 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 $459 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 $380 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 $309 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.

No. A direct flight is the cheapest option for a flight between Chicago to Buffalo.

As of October 2026, prices for Chicago to Buffalo flights are approximately 100% more expensive when compared to flights at the same time last year.

Frontier, Southwest, and United Airlines 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 October 2026, there are 30 flights per day flying from Chicago to Buffalo. The most common time of day flights depart is 2:00PM, with 44% of flights taking off in the evening.

The number of flights available between Chicago and Buffalo is 214 per week as of October 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.