Cheap Flights from Chicago O'Hare International to Buffalo Niagara

Compare Chicago O'Hare International to Buffalo Niagara flight deals

Find the cheapest month or even day of the year to fly to Buffalo Niagara

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Flight deals from Chicago O'Hare International to Buffalo Niagara

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International to Buffalo Niagara? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago O'Hare International to Buffalo Niagara

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Buffalo Niagara flights are currently cheapest in September.

Direct flights from Chicago O'Hare International to Buffalo Niagara

Chicago O'Hare International to Buffalo Niagara: Alternative routes

Compare routes from Chicago O'Hare International to Buffalo below. You may find an airport to fly into that's cheaper, faster, or easier than Buffalo Niagara.

Chicago to Buffalo: Flight information

The things to know before you go.
Cheapest flight foundC$96
Cheapest month to flySeptember
Average flight time1 hr, 42 mins
Most popular airlineAmerican Airlines
Average flights per week251

Finding cheap flights from Chicago O'Hare International to Buffalo Niagara: Frequently asked questions

The best price we found for a return flight from Chicago O'Hare International to Buffalo Niagara is C$195. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 42 minutes is the average flight time from Chicago O'Hare International to Buffalo Niagara.
American Airlines, Alaska Airlines and United fly direct from Chicago O'Hare International to Buffalo Niagara.
As of September 2025, there are 251 flights per week flying from Chicago O'Hare International to Buffalo Niagara.
The cheapest month to fly from Chicago O'Hare International to Buffalo Niagara is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Buffalo Niagara Airport on Friday, November 7, 2025.
Yes – the average flight time is 1 hour and 42 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buffalo Niagara but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buffalo is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Buffalo Niagara.

Traveling from O'Hare International Airport (ORD) to Buffalo Niagara International Airport (BUF): what you need to know

  • A direct flight from O'Hare International Airport to Buffalo Niagara International Airport takes an average of 1 hour 40 minutes. The timezone in Buffalo is UTC-4, which makes it 1 hour ahead of Chicago.

  • Each week, there are 263 flights from O'Hare International Airport to Buffalo Niagara International Airport. To get going as early as possible, select the 06:46 American Airlines flight. If you're keen to make the most of your time before flying, the last flight from ORD to BUF is 21:21 with United Airlines.

  • Delays at security and check-in are more likely if you're jetting off during high season, so allow some extra breathing space. A good rule for peak times? Get there up to four hours early for international flights and at least two hours for domestic departures.

  • If you'd like a stopover for your flight from O'Hare International Airport to Buffalo Niagara International Airport, simply deselect 'Direct flights only' and check out your options. Here are the top stopovers between ORD and BUF:

    • Detroit Metropolitan Wayne County Airport

    • Baltimore/Wash International Thurgood Marshall Airport

    • Washington Dulles International Airport

How to find the cheapest flights from O'Hare International Airport (ORD) to Buffalo Niagara International Airport (BUF)

  • The best price we've found for a one-way ticket from O'Hare International Airport to Buffalo Niagara International Airport is C$96. The cheapest price for a return flight is C$195. Remember that fares can change due to availability when booking.

  • To get cheap flight tickets from ORD to BUF, reserve your trip 10 months ahead of your departure.

  • June is the cheapest month for flight tickets from O'Hare International Airport to Buffalo Niagara International Airport. If you'd like to fly during a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Finding a cheap ticket from ORD to BUF is easy with Price Alerts. Simply set up one of these automatic alerts and we'll let you know when the price has dropped.

  • Take advantage of filters to find the ideal journey for you. To see the 'Fastest,' 'Cheapest' or 'Best' flights from O'Hare International Airport to Buffalo Niagara International Airport, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about O'Hare International Airport (ORD)

  • O'Hare International Airport is about 40 kilometres from central Chicago. If you're catching a cab, driving or ride-sharing from the center, it'll take you 35 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the journey time to be around 54 minutes.

  • After an easy way to start to your travels? Stay near ORD. Whether you're catching an early flight from O'Hare International Airport to Buffalo Niagara International Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Buffalo Niagara International Airport (BUF)

Getting from Buffalo Niagara International Airport (BUF) to central Buffalo

  • Buffalo Niagara International Airport is approximately 18 kilometres from the center of Buffalo. With a cab or in your own car rental, the drive is around 21 minutes.

  • If you're traveling on public transport, expect a journey time of about 1 hour and 15 minutes.

When to fly to Buffalo Niagara International Airport (BUF)

  • The quietest month for a flight from O'Hare International Airport to Buffalo Niagara International Airport is May, while August is the most popular. Choose the ideal time to go to Buffalo based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Lock in your flight from O'Hare International Airport to Buffalo Niagara International Airport for July if you want to go to Buffalo during its warmest month. You can expect temperatures of between 15ºC and 28ºC.

  • Search for cheap flight tickets from ORD to BUF in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -10ºC and 2ºC on average.

More about Buffalo

Complete your Buffalo trip with hotels and a car rental

  • Comparing flights is not the only thing we do. Once you've secured your cheap ticket to Buffalo Niagara International Airport, check out our car rental offers that'll give you the flexibility and freedom to travel around at your own pace. Then, have a look at our exclusive rates for hotels to find your perfect Buffalo stay.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.