$104 Find Cheap Flights from Buffalo to Chicago O'Hare Airport - Compare and Save

Among airlines operating Buffalo to Chicago O'Hare Intl Airport flights:

• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Buffalo and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines

Flights from Buffalo to Chicago O'Hare Intl Airport usually depart from Buffalo (BUF) and arrive at Chicago O'Hare Intl (ORD).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Buffalo to Chicago O'Hare Intl Airport:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $144 round-trip via Raleigh-Durham (RDU), compared to $346 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A319 family is used most often on this route, operated mainly by American Airlines and United Airlines. Other aircraft seen on the route include Boeing 737-800 variants.

One-stop flights from Buffalo to Chicago O'Hare Intl Airport most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 55% of one-stop connections
• New York John F Kennedy Intl (JFK) - 21% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 13% of one-stop connections
• Boston Logan Intl (BOS) - 5% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

On the Buffalo to Chicago O'Hare Intl Airport route, being flexible with your departure day can save you up to 13%. Saturday is the cheapest day at $307 round-trip on average, while Sunday is the most expensive at $350: a $43 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Buffalo to Chicago O'Hare Intl Airport flights, with 58% of flights leaving in that window. Evening departures account for 28%, afternoon flights for 14%, and night flights for 0%.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

These are the earliest and latest flight times available from Buffalo to Chicago O'Hare Intl Airport:

• Earliest: departs at 6:00 am and lands at 8:07 am
• Latest: departs at 9:45 pm and lands at 11:52 pm.

The flight takes about 2h 07m.

Last-minute fares on this route - booked within 2 weeks of departure - run 58% above the route average of $338. Book 20 weeks before departure for the lowest fares.

A nonstop flight from Buffalo to Chicago O'Hare Intl Airport takes 2h 07m, covering 472 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $235 to $962. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Buffalo to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $125, which is 42% below the typical average for this route.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 3h 50m, compared with 5h 49m via Boston Logan Intl (BOS) and 7h 06m via New York John F Kennedy Intl (JFK).

Chicago O'Hare Intl Airport is 1 hour behind Buffalo (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Round-trip flights from Buffalo to Chicago O'Hare Intl Airport range from $277 to $429, with an average of $338 over the past 12 months. Anything below $277 counts as a good deal.

Two airlines offer in-flight Wi-Fi on Buffalo to Chicago O'Hare Intl Airport flights:

• • American Airlines
• • JetBlue