$180 Cheap Flights from Wilmington (ILG) to Buffalo (BUF)

View $180 flight on Tue, May 6, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Wilmington to Buffalo (ILG-BUF)

Prices were available within the past 7 days and start at $180 for one-way flights and $290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, May 19 - Wed, May 21
ILG
Wilmington
BUF
Buffalo
$290 Roundtrip, found 4 days ago
$290
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, May 19 from Wilmington to Buffalo, returning Wed, May 21, priced at $290 found 4 days ago
American Airlines
Mon, May 19 - Wed, May 21
ILG
Wilmington
BUF
Buffalo
$330 Roundtrip, found 4 days ago
$330
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, May 19 from Wilmington to Buffalo, returning Wed, May 21, priced at $330 found 4 days ago
American Airlines
Mon, May 19 - Wed, May 21
ILG
Wilmington
BUF
Buffalo
$350 Roundtrip, found 4 days ago
$350
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, May 19 from Wilmington to Buffalo, returning Wed, May 21, priced at $350 found 4 days ago
American Airlines
Sat, May 17 - Tue, May 20
ILG
Wilmington
BUF
Buffalo
$359 Roundtrip, found 4 days ago
$359
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 17 from Wilmington to Buffalo, returning Tue, May 20, priced at $359 found 4 days ago
American Airlines
Fri, May 30 - Sun, Jun 1
ILG
Wilmington
BUF
Buffalo
$368 Roundtrip, found 6 days ago
$368
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 30 from Wilmington to Buffalo, returning Sun, Jun 1, priced at $368 found 6 days ago
American Airlines
Fri, May 30 - Sun, Jun 1
ILG
Wilmington
BUF
Buffalo
$378 Roundtrip, found 6 days ago
$378
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 30 from Wilmington to Buffalo, returning Sun, Jun 1, priced at $378 found 6 days ago
American Airlines
Sat, May 17 - Tue, May 27
ILG
Wilmington
BUF
Buffalo
$383 Roundtrip, found 4 days ago
$383
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 17 from Wilmington to Buffalo, returning Tue, May 27, priced at $383 found 4 days ago
American Airlines
Mon, May 19 - Wed, May 21
ILG
Wilmington
BUF
Buffalo
$389 Roundtrip, found 4 days ago
$389
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, May 19 from Wilmington to Buffalo, returning Wed, May 21, priced at $389 found 4 days ago
American Airlines
Sat, May 17 - Thu, May 22
ILG
Wilmington
BUF
Buffalo
$397 Roundtrip, found 4 days ago
$397
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 17 from Wilmington to Buffalo, returning Thu, May 22, priced at $397 found 4 days ago
American Airlines
Fri, May 16 - Sat, May 17
ILG
Wilmington
BUF
Buffalo
$398 Roundtrip, found 4 days ago
$398
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, May 16 from Wilmington to Buffalo, returning Sat, May 17, priced at $398 found 4 days ago
Flights from Wilmington (ILG) to Buffalo (BUF)
Origin airport
New Castle
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines
Roundtrip price
$290
Distance
277 mi

Wilmington to Buffalo Flights

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

The best time to book a flight from Wilmington to Buffalo

Sunday is one of the best days to book for cheap flights from Wilmington 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 Wilmington 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 Wilmington to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $180 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 Wilmington 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 Wilmington 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 Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF) cost?
Discover the latest flight deals from ILG to BUF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ILG to BUF?
The cheapest flights from ILG 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 Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)?
While Wilmington, DE (ILG-New Castle) doesn’t have any direct flights to Buffalo Niagara Intl. Airport (BUF), other airports have nonstop options. Taking off from Philadelphia Intl. Airport (PHL) will get you to Buffalo without any layovers.
What is the cheapest airline that flies from ILG to BUF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from ILG to BUF. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)?
You’ll have to take a flight with a layover when traveling from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF). Direct flights don’t operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from ILG to BUF?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)?
To avoid possible delays on the Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Booking your plane ticket from ILG to BUF just before your journey is usually more expensive. But if you’re flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an ILG to BUF flight and hotel package?
Booking an ILG to BUF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our impressive range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)?
In most cases, you can cancel or modify your ILG to BUF flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline’s fees and rules on flight changes, or if you’d like more details, go to our Customer Service portal.

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*Available to One Key members.