$80 Cheap Flights from Chicago (ORD) to Buffalo (BUF)

View $80 flight on Fri, May 8, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Chicago to Buffalo (ORD-BUF)

Prices were available within the past 7 days and start at $80 for one-way flights and $145 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Jun 9 - Fri, Jun 12
ORD
Chicago
BUF
Buffalo
$145 Roundtrip, found 5 days ago
$145
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Jun 9 from Chicago to Buffalo, returning Fri, Jun 12, priced at $145 found 5 days ago
Frontier Airlines
Fri, May 8 - Tue, May 12
ORD
Chicago
BUF
Buffalo
$160 Roundtrip, just found
$160
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 8 from Chicago to Buffalo, returning Tue, May 12, priced at $160 just found
Frontier Airlines
Tue, Apr 7 - Sun, Apr 12
ORD
Chicago
BUF
Buffalo
$170 Roundtrip, found 2 hours ago
$170
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Apr 7 from Chicago to Buffalo, returning Sun, Apr 12, priced at $170 found 2 hours ago
United
Sat, Jun 20 - Sat, Jul 4
ORD
Chicago
BUF
Buffalo
$175 Roundtrip, found 5 days ago
$175
Roundtrip
found 5 days ago
Select United flight, departing Sat, Jun 20 from Chicago to Buffalo, returning Sat, Jul 4, priced at $175 found 5 days ago
JetBlue Airways
Tue, Mar 24 - Fri, Mar 27
ORD
Chicago
BUF
Buffalo
$176 Roundtrip, found 5 days ago
$176
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Tue, Mar 24 from Chicago to Buffalo, returning Fri, Mar 27, priced at $176 found 5 days ago
Frontier Airlines
Mon, Mar 2 - Mon, Mar 9
ORD
Chicago
BUF
Buffalo
$179 Roundtrip, found 4 days ago
$179
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Mar 2 from Chicago to Buffalo, returning Mon, Mar 9, priced at $179 found 4 days ago
JetBlue Airways
Wed, Mar 25 - Tue, Apr 7
ORD
Chicago
BUF
Buffalo
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Wed, Mar 25 from Chicago to Buffalo, returning Tue, Apr 7, priced at $181 found 2 days ago
Frontier Airlines
Fri, May 8 - Tue, May 12
ORD
Chicago
BUF
Buffalo
$184 Roundtrip, just found
$184
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 8 from Chicago to Buffalo, returning Tue, May 12, priced at $184 just found
JetBlue Airways
Thu, May 7 - Sun, May 10
ORD
Chicago
BUF
Buffalo
$189 Roundtrip, found 1 hour ago
$189
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Thu, May 7 from Chicago to Buffalo, returning Sun, May 10, priced at $189 found 1 hour ago
Delta
Sat, Aug 8 - Sat, Aug 15
ORD
Chicago
BUF
Buffalo
$195 Roundtrip, found 6 days ago
$195
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Aug 8 from Chicago to Buffalo, returning Sat, Aug 15, priced at $195 found 6 days ago

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

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 $262
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $262

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

August is typically the cheapest month to fly

From $113 - $428 per traveler.

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $80 and cheap return flights from $145 Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights generally range between $135 and $552, and roundtrip flights usually range from $182 to $1472. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
September is the cheapest month to fly from Chicago (ORD) to Buffalo (BUF), with average round-trip fares around $268. This is about 24% lower than the average price for the year, as travel demand typically decreases after the summer. Other affordable months to consider are August and November.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
There are 2 airlines offering direct flights from ORD to BUF:

  • American Airlines operates around 41 direct flights from ORD to BUF every week
  • United operates around 40 direct flights from ORD to BUF every week

What is the cheapest airline that flies from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
American Airlines is one of the cheapest airlines offering nonstop flights from Chicago, IL (ORD) to Buffalo, NY (BUF), with round-trip tickets starting from around $273. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The best airline to fly with from Chicago, IL (ORD) to Buffalo, NY (BUF) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. American Airlines offers the most daily flights from ORD to BUF, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The ideal times to fly from Chicago, IL (ORD) to Buffalo, NY (BUF) are in August and September. Both months offer an average return flight price of around $268, making them budget-friendly options. August is particularly busy, while September tends to have slightly fewer travelers, allowing for a more comfortable journey. This information is based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You can find approximately 12 nonstop flights per day from O'Hare Intl. (ORD) to Buffalo Niagara Intl. (BUF). For more options, look at flights that include layovers.
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Chicago O'Hare (ORD) to Buffalo (BUF) typically leaves at 12:05 AM, operated by American Airlines. This seasonal service is active in December, allowing you to get an early start on your trip to New York. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) are in the early morning, from 6am to 9am. About 33% of passengers prefer this time window. Many major carriers, including American Airlines and Delta Air Lines, offer flights during this window. This timing works well because it allows you to maximize your day in Buffalo after an early start.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Direct flights from ORD to BUF usually take about 1 hour 50 minutes, traveling roughly 472 miles. If you opt for a connecting flight, expect to add around 3 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Select the "Business class" and "First class" filters when looking for ORD to BUF flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
A direct, return business class ticket from Chicago (ORD) to Buffalo (BUF) typically costs between $710 - $948. A non-stop, one-way business class flight is usually around $239 - $429. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Buffalo from O'Hare Intl. (ORD)?
If you're planning to travel to Buffalo from O'Hare Intl. (ORD), you can fly into Buffalo Niagara Intl. (BUF) Some flights may connect through major hubs like Logan Intl. (BOS), Nashville Intl. (BNA), Ronald Reagan Washington National (DCA) before reaching Buffalo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$145
Distance
471 mi
Average flight time
2 hours 42 mins

Book with confidence

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 June. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $80 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.

 

Chicago to Buffalo Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.