What are the cheapest airlines flying from Buffalo to Chicago O'Hare Intl Airport round-trip?

Frontier, at $58, was found to be the cheapest airline from Buffalo to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Frontier is currently priced 83% below the average price you’ll pay for this route.

How far ahead should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of $245). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Buffalo to Chicago O'Hare Intl Airport?

Travelers seeking maximum savings on their Buffalo to Chicago O'Hare Intl Airport flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Buffalo to Chicago O'Hare Intl Airport

The most flights from BUF to ORD are scheduled on a Thursday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the cheapest flights from Buffalo to Chicago O'Hare Intl Airport?

The cheapest flight price from Buffalo to Chicago O'Hare Intl Airport is $114. On average you can expect to pay $975. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $155.

What are the most reliable airlines from Buffalo to Chicago O'Hare Intl Airport?

Before booking your flight to Chicago O'Hare Intl Airport from Buffalo, check out the most reliable airlines to get you to your destination on time: Avianca (92%), Copa Airlines (91%), ANA( 81%).

What are the most popular airlines that fly from Buffalo to Chicago O'Hare Intl Airport?

Consider American Airlines, Frontier or United Airlines when booking your flight. These represent the most popular airlines when flying from Buffalo to Chicago O'Hare Intl Airport.

What is the cheapest day to fly round-trip from Buffalo to Chicago O'Hare Intl Airport?

Sunday flights are generally found to be more expensive for flights from Buffalo to Chicago O'Hare Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago O'Hare Intl Airport.

How far in advance should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

To save on the cost of your flight from Buffalo to Chicago O'Hare Intl Airport, book at least 32 days before your planned departure. Booking around this time can save you about 217% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $446 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $611.

What is the cheapest month to fly from Buffalo to Chicago O'Hare Intl Airport?

The best pricing can be found in the month of August. Prices to Chicago O'Hare Intl Airport from Buffalo average $324. You can even find prices in August for less than $324, as users have found deals to Chicago O'Hare Intl Airport from as low as $137. The month of February appears to be one of the more expensive times to travel to Chicago O'Hare Intl Airport from Buffalo. Flying in the targeted month can save you up to 8%.

What is the cheapest time of day to fly from BUF to ORD?

It’s optimal to fly from Buffalo to Chicago O'Hare Intl Airport in the morning. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight at noon.

What airport do you fly from for flights from Buffalo to Chicago O'Hare Intl?

For a flight from Buffalo to Chicago O'Hare Intl, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 16 outbound flights to Chicago O'Hare Intl per day. 3 airlines have flights to Chicago O'Hare Intl from Buffalo on a regular basis.

Can I find deals for flights from Buffalo to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Buffalo to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Buffalo to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to O'Hare Intl.

Can I find deals for business class flights from Buffalo to O'Hare Intl?

Yes. Cheapflights offers flight deals from Buffalo to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$78+ Flights from Buffalo to Chicago O'Hare Intl Airport

Round-trip from	$166 (United Airlines)
One-way from	$78 (American Airlines)
Popular in	February
Cheapest in	September
Average price	$284
Good round-trip deal	$338 or less
Good one-way deal	$183 or less

United's Economy Plus offers extra legroom and is available for no extra fee for MileagePlus Premier members.

United's Basic Economy allows only a personal item, no carry-on bags, unless exceptions apply.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$58	Average$208	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$161	Average$326	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$186	Average$372	FlexibilityNo cancel fee	On-time69%

$78+ Cheap flights from Buffalo (BUF) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or August, booked 71 days in advance, depart on a Friday or Thursday and return on a Tuesday

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Cheapest flights from Buffalo to O'Hare IntlExplore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

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Best time to book a flight from Buffalo to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Buffalo with our price prediction graph.

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Everything you need to know about your flight from Buffalo to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to O'Hare Intl. Price data was last updated on August 8, 2025.

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

What is the cheapest time of day to fly from BUF to ORD?

Find hourly flight availability from Buffalo to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Weekly flight availability from Buffalo to Chicago O'Hare Intl Airport

Explore weekly flight availability from Buffalo to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2025.

Reviews of airlines servicing O'Hare Intl

Related info for your journey

Find useful and relevant information for your journey from Buffalo to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Buffalo to Chicago O'Hare Intl?

What are the cheapest airlines flying from Buffalo to Chicago O'Hare Intl Airport round-trip?

What are the most reliable airlines from Buffalo to Chicago O'Hare Intl Airport?

What are the cheapest flights from Buffalo to Chicago O'Hare Intl Airport?

Can I find deals for flights from Buffalo to O'Hare Intl that include hotel bookings?

How can I find direct flights from Buffalo to O'Hare Intl?

Can I find deals for business class flights from Buffalo to O'Hare Intl?

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

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Cheapest flights from Buffalo to O'Hare Intl
Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.