$455 Cheap Flights from Colorado Springs (COS) to Wilmington (ILG)

View $455 flight on Fri, Nov 7, 2025Opens in a new window

Popular airlines from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle)

Cheap Flights from Colorado Springs to Wilmington (COS-ILG)

Prices were available within the past 7 days and start at $455 for one-way flights and $480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Dec 3 - Tue, Dec 16
COS
Colorado Springs
ILG
Wilmington
$480 Roundtrip, found 4 days ago
$480
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 3 from Colorado Springs to Wilmington, returning Tue, Dec 16, priced at $480 found 4 days ago
American Airlines
Wed, Dec 3 - Wed, Dec 17
COS
Colorado Springs
ILG
Wilmington
$514 Roundtrip, found 4 days ago
$514
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 3 from Colorado Springs to Wilmington, returning Wed, Dec 17, priced at $514 found 4 days ago
American Airlines
Wed, Dec 31 - Sat, Jan 17
COS
Colorado Springs
ILG
Wilmington
$524 Roundtrip, found 4 days ago
$524
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 31 from Colorado Springs to Wilmington, returning Sat, Jan 17, priced at $524 found 4 days ago
American Airlines
Wed, Dec 24 - Sat, Jan 10
COS
Colorado Springs
ILG
Wilmington
$528 Roundtrip, found 4 days ago
$528
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 24 from Colorado Springs to Wilmington, returning Sat, Jan 10, priced at $528 found 4 days ago
American Airlines
Fri, Dec 5 - Tue, Dec 16
COS
Colorado Springs
ILG
Wilmington
$528 Roundtrip, found 4 days ago
$528
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Dec 5 from Colorado Springs to Wilmington, returning Tue, Dec 16, priced at $528 found 4 days ago
American Airlines
Wed, Dec 17 - Mon, Jan 5
COS
Colorado Springs
ILG
Wilmington
$532 Roundtrip, found 4 hours ago
$532
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Dec 17 from Colorado Springs to Wilmington, returning Mon, Jan 5, priced at $532 found 4 hours ago
American Airlines
Fri, Nov 21 - Thu, Dec 4
COS
Colorado Springs
ILG
Wilmington
$548 Roundtrip, found 4 days ago
$548
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Nov 21 from Colorado Springs to Wilmington, returning Thu, Dec 4, priced at $548 found 4 days ago
American Airlines
Wed, Dec 31 - Tue, Jan 13
COS
Colorado Springs
ILG
Wilmington
$551 Roundtrip, found 4 days ago
$551
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 31 from Colorado Springs to Wilmington, returning Tue, Jan 13, priced at $551 found 4 days ago
American Airlines
Wed, Dec 17 - Thu, Jan 1
COS
Colorado Springs
ILG
Wilmington
$555 Roundtrip, found 4 hours ago
$555
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Dec 17 from Colorado Springs to Wilmington, returning Thu, Jan 1, priced at $555 found 4 hours ago
American Airlines
Fri, Nov 21 - Sat, Dec 6
COS
Colorado Springs
ILG
Wilmington
$561 Roundtrip, found 4 days ago
$561
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Nov 21 from Colorado Springs to Wilmington, returning Sat, Dec 6, priced at $561 found 4 days ago
American Airlines
Fri, Dec 5 - Wed, Dec 17
COS
Colorado Springs
ILG
Wilmington
$562 Roundtrip, found 4 days ago
$562
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Dec 5 from Colorado Springs to Wilmington, returning Wed, Dec 17, priced at $562 found 4 days ago
American Airlines
Thu, Dec 25 - Sat, Jan 10
COS
Colorado Springs
ILG
Wilmington
$564 Roundtrip, found 4 days ago
$564
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Dec 25 from Colorado Springs to Wilmington, returning Sat, Jan 10, priced at $564 found 4 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 $415
PHL
Philadelphia Intl.
Cheapest
Average driving time to city center28 min
Flights from $415

Frequently asked questions

How much does a flight from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle) cost?
Secure a cheap one-way flight from $455 or cheap return flight from $480 from Colorado Springs Airport (COS) 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 Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle)?
December is the most affordable month to fly from COS to ILG. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle)?
To find the cheapest airline flying from COS to ILG, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle)?
You'll need to catch a flight with a layover if you're traveling from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle). 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 COS to ILG?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending 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 Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle)?
Choose a flight from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this 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 Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle) last-minute?
Booking your flight from COS to ILG right before your trip is generally more expensive. However, if you're flexible with your travel dates and times, you could score a cheap last-minute fare.
Can I cancel or change the date of my flight from Colorado Springs Airport (COS) to Wilmington, DE (ILG-New Castle)?
Typically, you can modify or cancel your COS to ILG flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you need further information, go to our Customer Service portal.

Travel information

Origin airport
Colorado Springs
Destination airport
New Castle
Airlines serving
American Airlines
Roundtrip price
$480
Distance
1551 mi

Book with confidence

Colorado Springs to Wilmington Flights

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

 

The best time to book a flight from Colorado Springs to Wilmington

Sunday is one of the best days to book for cheap flights from Colorado Springs 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 Colorado Springs 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 Colorado Springs to Wilmington in 2025. You can also book with separate airlines for your outbound and return journeys, from $455 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 Colorado Springs 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 Colorado Springs 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.

 

Colorado Springs to Wilmington Flights

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*Available to One Key members.