$362 Cheap Flights from Wilmington (ILG) to Buffalo (BUF)

View $362 flight on Thu, May 7, 2026Opens in a new window

Popular airlines from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Wilmington to Buffalo (ILG-BUF)

Prices were available within the past 7 days and start at $362 for one-way flights and $338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Sep 13 - Tue, Sep 16
ILG
Wilmington
BUF
Buffalo
$338 Roundtrip, found 23 hours ago
$338
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Wilmington to Buffalo, returning Tue, Sep 16, priced at $338 found 23 hours ago
American Airlines
Sat, Sep 13 - Tue, Sep 16
ILG
Wilmington
BUF
Buffalo
$348 Roundtrip, found 23 hours ago
$348
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Wilmington to Buffalo, returning Tue, Sep 16, priced at $348 found 23 hours ago
American Airlines
Sat, Sep 13 - Tue, Sep 16
ILG
Wilmington
BUF
Buffalo
$348 Roundtrip, found 23 hours ago
$348
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Wilmington to Buffalo, returning Tue, Sep 16, priced at $348 found 23 hours ago
American Airlines
Sat, Sep 20 - Thu, Sep 25
ILG
Wilmington
BUF
Buffalo
$358 Roundtrip, found 2 days ago
$358
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Sep 20 from Wilmington to Buffalo, returning Thu, Sep 25, priced at $358 found 2 days ago
American Airlines
Sat, Sep 13 - Tue, Sep 16
ILG
Wilmington
BUF
Buffalo
$358 Roundtrip, found 23 hours ago
$358
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Wilmington to Buffalo, returning Tue, Sep 16, priced at $358 found 23 hours ago
American Airlines
Sat, Sep 20 - Thu, Sep 25
ILG
Wilmington
BUF
Buffalo
$368 Roundtrip, found 2 days ago
$368
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Sep 20 from Wilmington to Buffalo, returning Thu, Sep 25, priced at $368 found 2 days ago
American Airlines
Sat, Sep 20 - Thu, Sep 25
ILG
Wilmington
BUF
Buffalo
$368 Roundtrip, found 2 days ago
$368
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Sep 20 from Wilmington to Buffalo, returning Thu, Sep 25, priced at $368 found 2 days ago
American Airlines
Sat, Sep 13 - Tue, Sep 16
ILG
Wilmington
BUF
Buffalo
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Sep 13 from Wilmington to Buffalo, returning Tue, Sep 16, priced at $374 found 1 day ago
American Airlines
Thu, Sep 18 - Sun, Sep 21
ILG
Wilmington
BUF
Buffalo
$378 Roundtrip, just found
$378
Roundtrip
just found
Select American Airlines flight, departing Thu, Sep 18 from Wilmington to Buffalo, returning Sun, Sep 21, priced at $378 just found
American Airlines
Sat, Sep 20 - Sun, Sep 21
ILG
Wilmington
BUF
Buffalo
$378 Roundtrip, found 2 days ago
$378
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Sep 20 from Wilmington to Buffalo, returning Sun, Sep 21, priced at $378 found 2 days ago

Alternative airports near Buffalo

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

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $423
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $423
Flights from Wilmington (ILG) to Buffalo (BUF)
Origin airport
New Castle
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines
Roundtrip price
$337
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 September. 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 $362 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?
Secure a cheap one-way flight from $362 or cheap return flight from $338 from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)?
The cheapest month to fly from ILG to BUF is September, when there's less demand. Off-peak months are typically when better flight deals are available between these airports.
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 Wilmington, DE (ILG-New Castle) to Buffalo Niagara Intl. Airport (BUF)?
To find the cheapest airline flying from ILG to BUF, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
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.