$79 Find Cheap Flights from Buffalo to Illinois - Compare and Save

The cheapest ticket to Illinois from Buffalo found in the last 5 days was to Chicago, at $252 round-trip. The most popular route is from Buffalo (BUF) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $270.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $443 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $591.

No, with an average price for the route of $377, prices are generally cheapest when you fly direct.

The cheapest month for flights from Buffalo to Illinois is January, when tickets cost $278 (return) on average. On the other hand, the most expensive months are March and July, when the average cost of round-trip tickets is $436 and $385 respectively.

When flying from Buffalo to Illinois, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to Buffalo, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

To get a below average price on the flight from Buffalo to Illinois, you should book around 4 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

There are 3 airlines that fly nonstop from Buffalo to Illinois. They are: American Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with American Airlines at $145 for a round-trip flight to Chicago O'Hare Intl Airport (ORD). On average, American Airlines offers the best prices for nonstop flights between Buffalo and Illinois.

Buffalo and Illinois are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (38 flights per week), Alaska Airlines (33 flights per week), and Southwest (29 flights per week).

The duration of a flight to Illinois depends on your arrival airport. The shortest routes to Illinois from Buffalo are to Chicago, which takes 1h 41m, and Moline, which takes 6h 14m.

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.

The earliest flight from Buffalo to Illinois departs at 5:02 am, landing in Chicago at 5:56 am.

If you prefer to fly at night, the latest flight from Buffalo to Illinois jets off at 6:56 pm and lands in Chicago at 8:15 pm.