$237 Cheap Flights from Buffalo (BUF) to Wilmington (ILG)

View $237 flight on Tue, Oct 7, 2025Opens in a new window

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

Cheap Flights from Buffalo to Wilmington (BUF-ILG)

Prices were available within the past 7 days and start at $237 for one-way flights and $333 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Nov 6 - Wed, Nov 12
BUF
Buffalo
ILG
Wilmington
$333 Roundtrip, found 3 days ago
$333
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Nov 6 from Buffalo to Wilmington, returning Wed, Nov 12, priced at $333 found 3 days ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$358 Roundtrip, found 16 hours ago
$358
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $358 found 16 hours ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$368 Roundtrip, found 16 hours ago
$368
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $368 found 16 hours ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$368 Roundtrip, found 6 days ago
$368
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $368 found 6 days ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$393 Roundtrip, found 2 days ago
$393
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $393 found 2 days ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$404 Roundtrip, found 16 hours ago
$404
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $404 found 16 hours ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$404 Roundtrip, found 2 days ago
$404
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $404 found 2 days ago
American Airlines
Tue, Nov 4 - Tue, Nov 11
BUF
Buffalo
ILG
Wilmington
$406 Roundtrip, found 3 days ago
$406
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Nov 4 from Buffalo to Wilmington, returning Tue, Nov 11, priced at $406 found 3 days ago
American Airlines
Fri, Sep 19 - Wed, Sep 24
BUF
Buffalo
ILG
Wilmington
$417 Roundtrip, found 16 hours ago
$417
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Buffalo to Wilmington, returning Wed, Sep 24, priced at $417 found 16 hours ago
American Airlines
Sat, Aug 30 - Tue, Sep 2
BUF
Buffalo
ILG
Wilmington
$423 Roundtrip, found 5 days ago
$423
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Aug 30 from Buffalo to Wilmington, returning Tue, Sep 2, priced at $423 found 5 days ago

Alternative airports near Wilmington

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

Select flight to Philadelphia Intl. PHL. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $264
PHL
Philadelphia Intl.
Cheapest
Average driving time to city center28 min
Flights from $264
Flights from Buffalo (BUF) to Wilmington (ILG)
Origin airport
Buffalo Niagara Intl.
Destination airport
New Castle
Airlines serving
American Airlines
Roundtrip price
$333
Distance
277 mi

Buffalo to Wilmington Flights

The cheapest times to fly from Buffalo to Wilmington

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

 

The best time to book a flight from Buffalo to Wilmington

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

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 Wilmington in 2025. You can also book with separate airlines for your outbound and return journeys, from $237 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 Wilmington 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 Wilmington 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 Wilmington, DE (ILG-New Castle) cost?
Get a cheap one-way flight from $237 or cheap return flight from $333 from Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle) 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 Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle)?
The cheapest month to fly from BUF to ILG is November, when demand is low. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from BUF to ILG. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle)?
There aren't any daily nonstop flights available from Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from BUF to ILG?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Wilmington, DE (ILG-New Castle)?
Select a flight from Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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 Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle) last-minute?
Holding off until just before your departure to book a flight from BUF to ILG often results in higher prices. While you may come across some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of snagging a bargain.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Wilmington, DE (ILG-New Castle)?
In most instances, you can modify or cancel your BUF to ILG flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.