$77 Cheap Flights from Chicago (ORD) to Buffalo (BUF)

View $77 flight on Sun, Oct 5, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)

Cheap Flights from Chicago to Buffalo (ORD-BUF)

Prices were available within the past 7 days and start at $77 for one-way flights and $119 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 1 - Sat, Oct 4
ORD
Chicago
BUF
Buffalo
$119 Roundtrip, found 3 days ago
$119
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 1 from Chicago to Buffalo, returning Sat, Oct 4, priced at $119 found 3 days ago
United
Thu, Oct 9 - Tue, Oct 14
ORD
Chicago
BUF
Buffalo
$133 Roundtrip, found 1 day ago
$133
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 9 from Chicago to Buffalo, returning Tue, Oct 14, priced at $133 found 1 day ago
American Airlines
Sun, Nov 2 - Sat, Nov 8
ORD
Chicago
BUF
Buffalo
$135 Roundtrip, found 2 days ago
$135
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Nov 2 from Chicago to Buffalo, returning Sat, Nov 8, priced at $135 found 2 days ago
Frontier Airlines
Mon, Sep 29 - Wed, Oct 1
ORD
Chicago
BUF
Buffalo
$141 Roundtrip, found 2 days ago
$141
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Sep 29 from Chicago to Buffalo, returning Wed, Oct 1, priced at $141 found 2 days ago
Frontier Airlines
Thu, Oct 9 - Tue, Oct 14
ORD
Chicago
BUF
Buffalo
$142 Roundtrip, found 1 day ago
$142
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Chicago to Buffalo, returning Tue, Oct 14, priced at $142 found 1 day ago
Frontier Airlines
Sat, Oct 4 - Wed, Oct 8
ORD
Chicago
BUF
Buffalo
$143 Roundtrip, found 1 day ago
$143
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Oct 4 from Chicago to Buffalo, returning Wed, Oct 8, priced at $143 found 1 day ago
American Airlines
Fri, Jan 16 - Sat, Jan 17
ORD
Chicago
BUF
Buffalo
$143 Roundtrip, found 2 days ago
$143
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jan 16 from Chicago to Buffalo, returning Sat, Jan 17, priced at $143 found 2 days ago
American Airlines
Sat, Oct 25 - Tue, Oct 28
ORD
Chicago
BUF
Buffalo
$144 Roundtrip, found 2 days ago
$144
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 25 from Chicago to Buffalo, returning Tue, Oct 28, priced at $144 found 2 days ago
Delta
Sun, Nov 9 - Tue, Nov 11
ORD
Chicago
BUF
Buffalo
$147 Roundtrip, found 1 day ago
$147
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Nov 9 from Chicago to Buffalo, returning Tue, Nov 11, priced at $147 found 1 day ago
Southwest Airlines
Sat, Oct 25 - Tue, Oct 28
ORD
Chicago
BUF
Buffalo
$155 Roundtrip, found 2 days ago
$155
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, Oct 25 from Chicago to Buffalo, returning Tue, Oct 28, priced at $155 found 2 days ago

Find the cheapest month to fly from Chicago (ORD) to Buffalo (BUF)

August is typically the cheapest month to fly

From $98 - $287 per traveler.

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $253
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $253
Flights from Chicago (ORD) to Buffalo (BUF)
Origin airport
O'Hare Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$118
Distance
471 mi
Average flight time
2 hours 42 mins

Chicago to Buffalo Flights

The cheapest times to fly from Chicago to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Buffalo are during the month of October. You can find some of the cheapest flights from Chicago to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Buffalo

Sunday is one of the best days to book for cheap flights from Chicago to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $77 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) cost?
Get a cheap one-way flight from $77 or cheap return flight from $119 from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
Planning your trip for October is a good way to save, as it's the cheapest month for flights between ORD and BUF. You'll often find the lowest prices during the off-season.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
Jump on a nonstop flight with United Airlines and journey straight from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF).
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
American Airlines and United Airlines are popular airlines offering reasonable fares. Don't forget that flight prices from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) can vary based on travel dates, demand and how early you book. With Expedia's filter tool, you can easily find a ORD to BUF flight that suits your plans and budget.
How many flights per day from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
With an average of 4 direct flights departing from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) daily, you'll be on your way in no time.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
Flights between ORD and BUF are busiest at 9 AM. If you'd like a more relaxed experience and possibly cheaper fares, look for a departure outside the usual busy windows.
What day of the week has the most flights from ORD to BUF?
Jet off on a Friday if you're looking for the best selection of flights from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF).
What is the earliest flight from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
Take the earliest flight at around 9:00AM UTC-6, departing from O'Hare Intl. Airport (ORD). You'll be flying for about 1h 46m, coming in to land at Buffalo Niagara Intl. Airport (BUF) at approximately 11:46AM UTC-5.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
It takes roughly 1 hour and 42 minutes to fly the 470 mi from ORD to BUF.
What airline has the least delays from ORD to BUF?
With 80% of flights generally arriving on time, Alaska Airlines has the best on-time performance for nonstop flights from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF). To check your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
To avoid possible delays on the O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) route, aim to travel before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Buffalo from O'Hare Intl. Airport (ORD)?
Buffalo Niagara Intl. Airport (BUF) is the only airport in Buffalo with direct flights from O'Hare Intl. Airport (ORD). Browse the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Booking your plane ticket from ORD to BUF just before your journey is usually more expensive. But if there's some wiggle room with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book an ORD to BUF flight and hotel package?
Compared with arranging hotels and flights separately, booking an ORD to BUF flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF)?
In most cases, you can cancel or reschedule your ORD to BUF flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more details, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.