What are the cheapest airlines flying from Buffalo to Chicago round-trip?

Flying on Frontier is currently your cheapest option to Chicago, with prices starting at $199. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $203 and $204, respectively. Frontier is priced at 38% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Buffalo to Chicago one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $105. Users have also found prices from $107 and $110 on JetBlue and Delta, respectively.

How far ahead should I book a flight from Buffalo to Chicago?

The best time to book flights from Buffalo to Chicago is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Buffalo to Chicago?

Currently, August is the cheapest month in which you can book a flight from Buffalo to Chicago (average of $245). Flying from Buffalo to Chicago 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?

Travelers seeking maximum savings on their Buffalo to Chicago flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday 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

The most flights from BUF to CHI are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago, 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?

On average you can expect to pay $1,184 for a flight from Buffalo to Chicago. The cheapest flight overall is $124 while the most popular route, (Buffalo - Chicago O'Hare Intl) is currently priced at $137.

What are the most reliable airlines from Buffalo to Chicago?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Buffalo to Chicago on time: Copa Airlines (96%), Avianca (95%), Japan Airlines (92%).

What are the most popular airlines that fly from Buffalo to Chicago?

The most popular airlines flying from Buffalo to Chicago are American Airlines, Frontier and United Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Buffalo to Chicago?

Users have found that flying from Buffalo to Chicago on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Buffalo to Chicago?

To save up to 105% on this flight, we recommend booking at least 59 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Buffalo to Chicago from $349 1-2 weeks out and tickets from $609 for flights departing within the next 72 hours.

What is the cheapest month to fly from Buffalo to Chicago?

Our data shows that August tends to be the cheapest month to fly to Chicago from Buffalo. Users have commonly found prices around $325 for the month, but tickets can be as low as $135. Due to multiple factors, prepare for potentially higher prices in February.

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

It’s optimal to fly from Buffalo to Chicago in the evening. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight at noon.

What airport do you fly from for flights from Buffalo to Chicago?

Located just 8.3 mi from the city center, Buffalo is the airport most travelers will use when flying to Chicago from Buffalo. Booking flights from Buffalo (BUF) to Chicago should be relatively easy as there are 28 daily outbound flights to Chicago from 4 different airlines.

Can I find deals for flights from Buffalo to Chicago that include hotel bookings?

Yes. In addition to deals on Buffalo to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Buffalo to Chicago?

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

Can I find deals for business class flights from Buffalo to Chicago?

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

$105+ Flights from Buffalo to Chicago

Round-trip from	$199 (Priceline)
One-way from	$105 (Priceline)
Popular in	February
Cheapest in	August
Average price	$318
Good round-trip deal	$287 or less
Good one-way deal	$173 or less

Qatar Airways

Qatar Airways' carry-on policy allows only one item in economy, so pack wisely to avoid fees.

Qatar Airways offers extra legroom seats for a fee, ideal for added comfort on short flights.

Read more about Qatar Airwaysby Brandon Schultz

United Airlines

United's Basic Economy restricts carry-ons; only personal items are allowed without extra fees.

United Economy Plus offers extra legroom seats, enhancing comfort for short domestic flights.

Read more about United Airlinesby Harriet Baskas

Southwest

Enjoy free snacks and non-alcoholic beverages on board, enhancing your short-haul flight experience.

Southwest offers two free checked bags, including oversized items like skis or golf clubs.

Read more about Southwestby Marisa Garcia

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$58	Average$208	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$127	Average$364	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$166	Average$334	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$259	Average$339	FlexibilityNo cancel fee	On-time63%

$105+ Cheap flights from Buffalo (BUF) to Chicago (CHI)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Buffalo to Chicago with Cheapflights

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Cheapflights Tip: The best prices from Buffalo to Chicago are usually found in August or September, booked 80 days in advance, depart on a Friday or Thursday and return on a Wednesday

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Cheapest flights from Buffalo to ChicagoExplore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Explore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

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The best insider tips for Buffalo to Chicago flights

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Best time to book a flight from Buffalo to Chicago

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

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Chicago

How far ahead should I book a flight from Buffalo to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Chicago. Price data was last updated on June 27, 2025.

What is the cheapest month to book a flight from Buffalo to Chicago?

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

Find hourly flight availability from Buffalo to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

What is the cheapest day to fly from Buffalo to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Chicago. Price data was last updated on June 29, 2025.

Weekly flight availability from Buffalo to Chicago

Explore weekly flight availability from Buffalo to Chicago. 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 June 30, 2025.

Reviews of airlines servicing Chicago

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Buffalo to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Chicago. 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?

What are the cheapest airlines flying from Buffalo to Chicago round-trip?

What are the cheapest airlines to fly from Buffalo to Chicago one-way?

What are the most reliable airlines from Buffalo to Chicago?

What are the cheapest flights from Buffalo to Chicago?

Can I find deals for flights from Buffalo to Chicago that include hotel bookings?

How can I find direct flights from Buffalo to Chicago?

Can I find deals for business class flights from Buffalo to Chicago?

What is the cheapest month to book a flight from Buffalo to Chicago?

Traveling to a place near Buffalo?

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Cheapest flights from Buffalo to Chicago
Explore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.