$39 Cheap Flights from Chicago (MDW) to Buffalo (BUF)

View $39 flight on Tue, Jun 3, 2025Opens in a new window

Popular airlines from Chicago Midway Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)

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Find available prices by choosing your travel dates.

Cheap Flights from Chicago to Buffalo (MDW-BUF)

Prices were available within the past 7 days and start at $39 for one-way flights and $77 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Jul 15 - Mon, Jul 21
MDW
Chicago
BUF
Buffalo
$77 Roundtrip, found 1 day ago
$77
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Jul 15 from Chicago to Buffalo, returning Mon, Jul 21, priced at $77 found 1 day ago
Southwest Airlines
Mon, Jun 16 - Thu, Jun 19
MDW
Chicago
BUF
Buffalo
$87 Roundtrip, found 10 hours ago
$87
Roundtrip
found 10 hours ago
Select Southwest Airlines flight, departing Mon, Jun 16 from Chicago to Buffalo, returning Thu, Jun 19, priced at $87 found 10 hours ago
Southwest Airlines
Mon, Jul 21 - Thu, Jul 24
MDW
Chicago
BUF
Buffalo
$97 Roundtrip, found 9 hours ago
$97
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Mon, Jul 21 from Chicago to Buffalo, returning Thu, Jul 24, priced at $97 found 9 hours ago
Southwest Airlines
Tue, Jul 15 - Mon, Jul 21
MDW
Chicago
BUF
Buffalo
$107 Roundtrip, found 1 day ago
$107
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Jul 15 from Chicago to Buffalo, returning Mon, Jul 21, priced at $107 found 1 day ago
Southwest Airlines
Mon, Jun 16 - Thu, Jun 19
MDW
Chicago
BUF
Buffalo
$117 Roundtrip, found 10 hours ago
$117
Roundtrip
found 10 hours ago
Select Southwest Airlines flight, departing Mon, Jun 16 from Chicago to Buffalo, returning Thu, Jun 19, priced at $117 found 10 hours ago
Frontier Airlines
Sun, May 18 - Thu, May 22
MDW
Chicago
BUF
Buffalo
$124 Roundtrip, found 7 hours ago
$124
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sun, May 18 from Chicago to Buffalo, returning Thu, May 22, priced at $124 found 7 hours ago
Southwest Airlines
Mon, Jul 21 - Thu, Jul 24
MDW
Chicago
BUF
Buffalo
$127 Roundtrip, found 9 hours ago
$127
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Mon, Jul 21 from Chicago to Buffalo, returning Thu, Jul 24, priced at $127 found 9 hours ago
Delta
Tue, May 20 - Thu, May 22
MDW
Chicago
BUF
Buffalo
$127 Roundtrip, found 13 hours ago
$127
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, May 20 from Chicago to Buffalo, returning Thu, May 22, priced at $127 found 13 hours ago
Delta
Wed, Jul 2 - Mon, Jul 7
MDW
Chicago
BUF
Buffalo
$137 Roundtrip, found 17 hours ago
$137
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Jul 2 from Chicago to Buffalo, returning Mon, Jul 7, priced at $137 found 17 hours ago
Southwest Airlines
Tue, Jun 10 - Wed, Jun 11
MDW
Chicago
BUF
Buffalo
$138 Roundtrip, found 13 hours ago
$138
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Tue, Jun 10 from Chicago to Buffalo, returning Wed, Jun 11, priced at $138 found 13 hours ago
Flights from Chicago (MDW) to Buffalo (BUF)
Origin airport
Midway Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
Delta, Frontier Airlines, Southwest Airlines
Roundtrip price
$77
Distance
466 mi

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 July. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $39 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.

Frequently asked questions

How much does a flight from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF) cost?
You can find cheap return tickets from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF) starting from $267. Grab your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving MDW on May 15 2025 and touching down at BUF. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from MDW to BUF?
The cheapest flights from MDW to BUF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
When heading out of Midway Intl. Airport (MDW), you can jump on a direct flight to Buffalo Niagara Intl. Airport (BUF) with Southwest Airlines.
What is the cheapest airline that flies from MDW to BUF?
With tickets starting at $125 for a one-way flight from MDW to BUF, Southwest Airlines is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MDW on July 2 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
On average, Midway Intl. Airport (MDW) has 6 nonstop flights to Buffalo Niagara Intl. Airport (BUF) each week. For more choice, use Expedia’s filter tool to search for flights with layovers. Fit in a quick visit to another destination or just break up your journey.
What are the most popular departure times for flights from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
The 6 PM departures from MDW to BUF are typically the busiest. Prices can be higher for these popular slots. If you’re looking to save, pick a less crowded time to fly.
What day of the week has the most flights from MDW to BUF?
Depart on a Friday if you’re searching for the best selection of flights from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF).
What is the earliest flight from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
Catch the earliest flight at around 6:25PM UTC-6, leaving from Midway Intl. Airport (MDW). You’ll be traveling for around 1h 30m, reaching Buffalo Niagara Intl. Airport (BUF) at approximately 8:55PM UTC-5.
How long does it take to fly from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
It takes approximately 1 hour and 30 minutes to fly the 470 mi from MDW to BUF.
What is the best time to fly from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
Select a flight from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Buffalo from Midway Intl. Airport (MDW)?
If you’re catching a direct flight from Midway Intl. Airport (MDW) to Buffalo, you can touch down at either Billy Bishop Toronto City Airport (YTZ) or Buffalo Niagara Intl. Airport (BUF).
Is it cheaper to buy a plane ticket from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Booking your plane ticket from MDW to BUF just before your trip is typically more expensive. However, if you’re flexible with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a MDW to BUF flight and hotel package?
You’ll typically save money by booking a MDW to BUF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. Once you’ve chosen your ideal accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Midway Intl. Airport (MDW) to Buffalo Niagara Intl. Airport (BUF)?
In most cases, you can cancel or reschedule your MDW to BUF flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline’s rules and fees on flight changes, or if you need further details, visit our Customer Service portal.

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