Cheap Flights from Decatur (DEC) to Buffalo (BUF)

Popular airlines from Decatur, IL (DEC) to Buffalo Niagara Intl. Airport (BUF)

Frequently asked questions

How much does a flight from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF) cost?
Get a cheap one-way flight or cheap return flight from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between DEC and BUF. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DEC to BUF flight.
How many flights per day from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF)?
You'll need to book a flight with a layover when traveling from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from DEC to BUF?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF)?
Select a flight from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF) that takes off before 3 PM to reduce the likelihood of delays. 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.
Is it cheaper to buy a plane ticket from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Waiting until just before your trip to book a flight from DEC to BUF often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book a DEC to BUF flight and hotel package?
Compared with arranging hotels and flights separately, booking a DEC to BUF flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Decatur Airport (DEC) to Buffalo Niagara Intl. Airport (BUF)?
You can usually cancel or reschedule your DEC to BUF flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Decatur
Destination airport
Buffalo Niagara Intl.
Distance
567 mi

Book with confidence

Decatur to Buffalo Flights

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

 

The best time to book a flight from Decatur to Buffalo

Sunday is one of the best days to book for cheap flights from Decatur 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 Decatur 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 Decatur to Buffalo in 2026. 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 Decatur 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 Decatur 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.

 

Decatur to Buffalo Flights

Explore a world of travel with Expedia

*Available to One Key members.