$100 Find Cheap Flights from Buffalo to Chicago O'Hare Airport - Compare and Save

For Buffalo to Chicago O'Hare Airport, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Chicago O'Hare Airport back to Buffalo, the best deals are generally found on Saturday, with Monday being the most expensive.

The cheapest month for flights from Buffalo to Chicago O'Hare Intl Airport is January, where tickets cost $241 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $381 and $369 respectively.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $341 on average.

To get a below average price on the flight from Buffalo to Chicago O'Hare Intl Airport, you should book around 4 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

In the past 5 days, the cheapest round-trip tickets from Buffalo to Chicago O'Hare Airport were found on Frontier ($242) and American Airlines ($247).

There are 2 airlines that fly nonstop from Buffalo to Chicago O'Hare Intl Airport. They are American Airlines and United Airlines. The cheapest airline for this route is American Airlines, with the best round-trip deal found costing $145. On average, the best prices for this route can be found at American Airlines.

Atlanta (ATL) is the top choice – 55% of KAYAK users who clicked on 1-stop flights from Buffalo to Chicago O'Hare Airport picked an itinerary connecting there.

Flights via Atlanta (ATL) offer the most affordable fares, with an average round-trip price of $238.

Consider flying via Detroit (DTW) for the shortest journey. The average one-way travel time for flights connecting there is 3h 29m.

If you prefer a quick connection, Detroit (DTW) often has the shortest layovers from Buffalo to Chicago O'Hare Airport, with an average of 1h 23m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 7 and 8 nonstop flights that take off from Buffalo and land in Chicago O'Hare Intl Airport, with an average flight time of 2h 03m. The most common departure time is 10:00 am and most flights take off in the morning. Each week, there are 51 flights. The most frequent day of departure is Monday, when 16% of all weekly flights depart. The fewest flights depart on a Wednesday.