$39 Cheap United flights Chicago (ORD) to Buffalo (BUF)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap United Airlines round-trip flights from $77 from ORD to BUF. Affordable one-way options from $39 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for one-way or return flights to Buffalo in January or February. You could find cheaper fares with United Airlines during these off-season months.

Look for affordable United Airlines flights from O’Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Jet off on one of United Airlines’s 17 direct weekly flights from O’Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF). To see what’s available, enter your destination, origin and dates and hit search. Then apply the “Nonstop” and “Airline” filters.

On average, it takes 1h 42m to travel nonstop from O’Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF) with United Airlines.

Thursday has the most United Airlines flights from O’Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF). With 3 daily departures, this is the best day to find something that will work for your schedule.

The first United Airlines flight from ORD to BUF departs at 10:35AM UTC-6, touching down at 1:19PM UTC-5. If you’d like to head off later in the day, the last United Airlines flight leaves ORD at 6:30PM UTC-6 and lands at BUF at 9:10PM UTC-5. Flying before noon is often a good option as morning flights are less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Take a United Airlines flight from O’Hare Intl. Airport (ORD) to Buffalo, and you’ll most likely come in to Buffalo Niagara Intl. Airport (BUF). This is the airline’s main hub in this city.

Travel from ORD to BUF with United Airlines and you’ll enjoy a host of benefits including a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

United Airlines generally flies Embraer 170 planes for flights from O’Hare Intl. Airport (ORD) to Buffalo Niagara Intl. Airport (BUF). This carrier also operates the Airbus A319 on this route. Bear in mind that aircraft type can vary depending on operational demands, so the plane you catch could be different on the day you travel.

It’s usually possible to modify or cancel your flight, although there may be additional charges if you booked more than 24 hours ago. Need to keep your options open? Use Expedia’s “Changes included” and “No cancel fee” filters to find flights that won’t charge you extra if you need to revise your plans. To make changes, visit “Trips,” select your flight and click on “Manage Booking” for further information.