$126 Cheap Flights from Denver (DEN) to Wilmington (ILG)

View $126 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle)

Cheap Flights from Denver to Wilmington (DEN-ILG)

Prices were available within the past 7 days and start at $126 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Dec 2 - Tue, Dec 16
DEN
Denver
ILG
Wilmington
$258 Roundtrip, found 3 days ago
$258
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Dec 2 from Denver to Wilmington, returning Tue, Dec 16, priced at $258 found 3 days ago
American Airlines
Wed, Nov 19 - Sat, Dec 6
DEN
Denver
ILG
Wilmington
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from Denver to Wilmington, returning Sat, Dec 6, priced at $268 found 2 days ago
American Airlines
Thu, Nov 27 - Sat, Dec 6
DEN
Denver
ILG
Wilmington
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Nov 27 from Denver to Wilmington, returning Sat, Dec 6, priced at $273 found 2 days ago
American Airlines
Thu, Nov 13 - Sat, Nov 15
DEN
Denver
ILG
Wilmington
$289 Roundtrip, found 2 days ago
$289
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Nov 13 from Denver to Wilmington, returning Sat, Nov 15, priced at $289 found 2 days ago
American Airlines
Mon, Nov 17 - Wed, Nov 19
DEN
Denver
ILG
Wilmington
$290 Roundtrip, found 1 day ago
$290
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Nov 17 from Denver to Wilmington, returning Wed, Nov 19, priced at $290 found 1 day ago
American Airlines
Tue, Dec 2 - Mon, Dec 15
DEN
Denver
ILG
Wilmington
$297 Roundtrip, found 3 days ago
$297
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Dec 2 from Denver to Wilmington, returning Mon, Dec 15, priced at $297 found 3 days ago
American Airlines
Tue, Nov 18 - Tue, Dec 9
DEN
Denver
ILG
Wilmington
$303 Roundtrip, found 2 days ago
$303
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from Denver to Wilmington, returning Tue, Dec 9, priced at $303 found 2 days ago
American Airlines
Wed, Nov 19 - Fri, Dec 5
DEN
Denver
ILG
Wilmington
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from Denver to Wilmington, returning Fri, Dec 5, priced at $307 found 2 days ago
American Airlines
Wed, Nov 19 - Mon, Nov 24
DEN
Denver
ILG
Wilmington
$312 Roundtrip, found 2 days ago
$312
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from Denver to Wilmington, returning Mon, Nov 24, priced at $312 found 2 days ago
American Airlines
Tue, Nov 18 - Wed, Nov 19
DEN
Denver
ILG
Wilmington
$313 Roundtrip, found 2 days ago
$313
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from Denver to Wilmington, returning Wed, Nov 19, priced at $313 found 2 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 $130
PHL
Philadelphia Intl.
Cheapest
Average driving time to city center28 min
Flights from $130

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle) cost?
Secure a cheap one-way flight from $126 or cheap return flight from $258 from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle) 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 Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle)?
The cheapest month to fly from DEN to ILG is December, when there's less demand. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest DEN to ILG flight.
How many flights per day from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle)?
You'll have to take a flight with a layover if you're traveling from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from DEN to ILG?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, 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 Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle)?
To avoid possible delays on the Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle) route, travel before 3 PM. Flights after this time are 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 Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle) last-minute?
Last-minute bookings from DEN to ILG are generally more expensive. For the lowest rates, start searching for flights as soon as possible. That said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before your journey.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Wilmington, DE (ILG-New Castle)?
It's usually possible to cancel or reschedule your DEN to ILG flight. However, for bookings made more than 24 hours ago, additional fees 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
Denver Intl.
Destination airport
New Castle
Airlines serving
American Airlines
Roundtrip price
$258
Distance
1537 mi

Book with confidence

Denver to Wilmington Flights

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

 

The best time to book a flight from Denver to Wilmington

Sunday is one of the best days to book for cheap flights from Denver 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 Denver 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 Denver to Wilmington in 2025. You can also book with separate airlines for your outbound and return journeys, from $126 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 Denver 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 Denver 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.

 

Denver to Wilmington Flights

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*Available to One Key members.