Cheap Flights from Buffalo (BUF) to Chicago (DPA)

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Chicago, IL (DPA-Dupage)

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $249
ORD
O'Hare Intl.
Cheapest
Average driving time to city center23 min
Flights from $249
Select flight to Midway Intl. MDW. Closest option available. Average driving time to city center is 16 minutes. Flights from $316
MDW
Midway Intl.
Closest
Average driving time to city center16 min
Flights from $316
Flights from Buffalo (BUF) to Chicago (DPA)
Origin airport
Buffalo Niagara Intl.
Destination airport
Dupage
Distance
490 mi

Buffalo to Chicago Flights

The cheapest times to fly from Buffalo to Chicago

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 Buffalo to Chicago are during the month of . You can find some of the cheapest flights from Buffalo to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Chicago

Sunday is one of the best days to book for cheap flights from Buffalo to Chicago: 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 Buffalo to Chicago

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 Buffalo to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Buffalo to Chicago 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 Buffalo to Chicago 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 Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA) cost?
Grab a cheap one-way flight or cheap return flight from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA)?
The cheapest month to fly from BUF to DPA is , when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA)?
To find the cheapest airline that'll fly you from BUF to DPA, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA)?
You'll need to catch a flight with a layover when traveling from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from BUF to DPA?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA)?
To reach Dupage Airport (DPA) on time, opt for a flight that leaves Buffalo Niagara Intl. Airport (BUF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Chicago from Buffalo Niagara Intl. Airport (BUF)?
You can touch down at O'Hare Intl. Airport (ORD) or Midway Intl. Airport (MDW) when traveling to Chicago on a direct flight from Buffalo Niagara Intl. Airport (BUF).
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA) last-minute?
Holding off until right before your break to book your flight from BUF to DPA generally means paying more. While you may come across some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule for the best chance of landing a bargain.
Is it cheaper to book a BUF to DPA flight and hotel package?
Booking a BUF to DPA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Dupage Airport (DPA)?
In most instances, you can cancel or modify your BUF to DPA flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want further details, go to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.