$200 Cheap Flights from St. Louis (STL) to Wilmington (ILM)

View $200 flight on Fri, Feb 20, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Wilmington Intl. Airport (ILM)

Cheap Flights from St. Louis to Wilmington (STL-ILM)

Prices were available within the past 7 days and start at $200 for one-way flights and $201 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Mar 11 - Wed, Mar 18
STL
St. Louis
ILM
Wilmington
$201 Roundtrip, found 12 hours ago
$201
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Mar 11 from St. Louis to Wilmington, returning Wed, Mar 18, priced at $201 found 12 hours ago
Delta
Wed, Mar 11 - Wed, Mar 18
STL
St. Louis
ILM
Wilmington
$201 Roundtrip, found 12 hours ago
$201
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Mar 11 from St. Louis to Wilmington, returning Wed, Mar 18, priced at $201 found 12 hours ago
American Airlines
Wed, Mar 11 - Wed, Mar 18
STL
St. Louis
ILM
Wilmington
$206 Roundtrip, found 12 hours ago
$206
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Mar 11 from St. Louis to Wilmington, returning Wed, Mar 18, priced at $206 found 12 hours ago
American Airlines
Wed, Dec 3 - Sat, Dec 6
STL
St. Louis
ILM
Wilmington
$211 Roundtrip, found 2 days ago
$211
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Dec 3 from St. Louis to Wilmington, returning Sat, Dec 6, priced at $211 found 2 days ago
Delta
Sat, Aug 15 - Sat, Aug 22
STL
St. Louis
ILM
Wilmington
$230 Roundtrip, found 2 hours ago
$230
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 15 from St. Louis to Wilmington, returning Sat, Aug 22, priced at $230 found 2 hours ago
Delta
Tue, Nov 4 - Sat, Nov 22
STL
St. Louis
ILM
Wilmington
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from St. Louis to Wilmington, returning Sat, Nov 22, priced at $243 found 1 day ago
American Airlines
Wed, Mar 11 - Wed, Mar 18
STL
St. Louis
ILM
Wilmington
$248 Roundtrip, found 12 hours ago
$248
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Mar 11 from St. Louis to Wilmington, returning Wed, Mar 18, priced at $248 found 12 hours ago
American Airlines
Wed, Mar 11 - Wed, Mar 18
STL
St. Louis
ILM
Wilmington
$253 Roundtrip, found 12 hours ago
$253
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Mar 11 from St. Louis to Wilmington, returning Wed, Mar 18, priced at $253 found 12 hours ago
United
Tue, Nov 11 - Tue, Nov 18
STL
St. Louis
ILM
Wilmington
$254 Roundtrip, found 10 hours ago
$254
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Nov 11 from St. Louis to Wilmington, returning Tue, Nov 18, priced at $254 found 10 hours ago
Delta
Sat, Aug 15 - Sat, Aug 22
STL
St. Louis
ILM
Wilmington
$259 Roundtrip, found 2 hours ago
$259
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 15 from St. Louis to Wilmington, returning Sat, Aug 22, priced at $259 found 2 hours ago

Find the cheapest month to fly from St. Louis (STL) to Wilmington (ILM)

January is typically the cheapest month to fly

From $198 - $457 per traveler.

Alternative airports near Wilmington

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

Select flight to Wilmington Intl. ILM. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $295
ILM
Wilmington Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $295

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM) cost?
Snag a cheap one-way flight from $200 or cheap return flight from $201 from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM) 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 Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM)?
The cheapest month to fly from STL to ILM is March, when demand is low. Off-peak season is typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM)?
To find the cheapest airline flying from STL to ILM, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to ILM?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary 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 Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM)?
Book a flight from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM) that leaves before 3 PM to reduce the risk of 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 Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM) last-minute?
Booking your flight from STL to ILM right before your journey is usually more expensive. However, if there's some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a STL to ILM flight and hotel package?
Opting for a STL to ILM flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Wilmington Intl. Airport (ILM)?
Typically, you can cancel or reschedule your STL to ILM flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more information, head to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Wilmington Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$200
Distance
756 mi

Book with confidence

St. Louis to Wilmington Flights

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

 

The best time to book a flight from St. Louis to Wilmington

Sunday is one of the best days to book for cheap flights from St. Louis 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 St. Louis 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 St. Louis to Wilmington in 2025. You can also book with separate airlines for your outbound and return journeys, from $200 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 St. Louis 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 St. Louis 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.

 

St. Louis to Wilmington Flights

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*Available to One Key members.