What are the cheapest airlines flying from St. Louis to Wilmington round-trip?

Our cheapest airline available from St. Louis to Wilmington is American Airlines. Our recent data shows that you can find tickets from as low as $201 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $259 and $272 round-trip. American Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from St. Louis to Wilmington?

Travelers seeking maximum savings on their St. Louis to Wilmington flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Wilmington ranges from 2.8 - 7.8 inches per month. September is typically the wettest month, when rainfall can reach 7.8 in. April is typically the driest time to visit Wilmington when rainfall is around 2.8 in.

If weather is an important factor for your trip to Wilmington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

What is the cheapest day to fly round-trip from St. Louis to Wilmington?

Users have found that flying from St. Louis to Wilmington on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from St. Louis to Wilmington?

Users have found that booking a flight from St. Louis to Wilmington at least 36 days early can save you up to 43% on average compared to booking a flight this week. If booking 36 days before your flight isn’t an option for you, users have found flights from St. Louis to Wilmington for as little as $283 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $360 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to Wilmington?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Wilmington. Flights to Wilmington from St. Louis in February are about $358 on average during February, but can be found for as low as $248.

Can I find deals for flights from St. Louis to Wilmington that include hotel bookings?

Yes. In addition to deals on St. Louis to Wilmington flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Wilmington?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Wilmington.

Can I find deals for business class flights from St. Louis to Wilmington?

Yes. Cheapflights offers flight deals from St. Louis to Wilmington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$201+ Flights from St. Louis to Wilmington

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Cheapflights Tip: The best prices from Lambert-St Louis to Wilmington New Hanover County are usually found in February or July, booked 35 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from St. Louis to Wilmington

Round-trip from	$201 (American Airlines)
Popular in	December
Cheapest in	February
Average price	$318

From Lambert-St Louis to Wilmington New Hanover County

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from St. Louis to Wilmington

Cheapest flights from St. Louis to Wilmington
Explore the most affordable flight options available from St. Louis to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Wed 9/32:11 pmSTL - ILM

1 stop5h 38mAmerican Airlines

Sat 9/610:39 amILM - STL

1 stop6h 36mAmerican Airlines

Deal found 7/27

$201

Wed 8/138:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Sun 8/174:59 pmILM - STL

1 stop6h 46mUnited Airlines

Deal found 7/29

$259

Wed 8/203:40 pmSTL - ILM

1 stop6h 32mDelta

Sat 8/236:00 amILM - STL

1 stop3h 54mDelta

Deal found 7/28

$272

Best flights from St. Louis to Wilmington
Discover carefully curated flight deals from St. Louis to Wilmington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Wed 9/32:11 pmSTL - ILM

1 stop5h 38mAmerican Airlines

Sat 9/610:39 amILM - STL

1 stop6h 36mAmerican Airlines

Deal found 7/27

$201

Wed 8/138:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Sun 8/174:59 pmILM - STL

1 stop6h 46mUnited Airlines

Deal found 7/29

$259

Wed 8/203:40 pmSTL - ILM

1 stop6h 32mDelta

Sat 8/236:00 amILM - STL

1 stop3h 54mDelta

Deal found 7/28

$272

Last-minute flights from St. Louis to Wilmington
Discover last-minute flight deals from St. Louis to Wilmington. Data last updated July 29, 2025 and is based on user searches.

Mon 8/43:41 pmSTL - ILM

1 stop6h 17mDelta

Wed 8/611:45 amILM - STL

1 stop7h 23mDelta

Deal found 7/28

$342

Mon 8/46:33 amSTL - ILM

1 stop7h 51mUnited Airlines

Wed 8/67:05 amILM - STL

2 stops9h 42mUnited Airlines

Deal found 7/28

$728

Sat 8/94:32 pmSTL - ILM

1 stop6h 27mAmerican Airlines

Sat 8/168:05 pmILM - STL

1 stop4h 50mAmerican Airlines

Deal found 7/27

$275

Wed 8/138:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Sun 8/174:59 pmILM - STL

1 stop6h 46mUnited Airlines

Deal found 7/29

$259

Wed 8/203:40 pmSTL - ILM

1 stop6h 32mDelta

Sat 8/236:00 amILM - STL

1 stop3h 54mDelta

Deal found 7/28

$272

One-way flights from St. Louis to Wilmington
Search for one-way flight options from St. Louis to Wilmington. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Thu 8/710:47 amSTL - ILM

2 stops7h 56mMultiple Airlines

Deal found 7/29

$328

Thu 8/78:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Deal found 7/29

$354

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Wilmington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisWilmington

STL - ILM

STLILM

Lambert-St Louis

Wed 9/3

2:11 pm-8:49 pm

1 stop5h 38m

Wilmington New Hanover County

Sat 9/6

10:39 am-4:15 pm

1 stop6h 36m

$201

St. LouisWilmington

STL - ILM

STLILM

Lambert-St Louis

Wed 8/13

8:00 am-3:24 pm

1 stop6h 24m

Wilmington New Hanover County

Sun 8/17

4:59 pm-10:45 pm

1 stop6h 46m

$259

St. LouisWilmington

STL - ILM

STLILM

Lambert-St Louis

Wed 8/20

3:40 pm-11:12 pm

1 stop6h 32m

Wilmington New Hanover County

Sat 8/23

6:00 am-8:54 am

1 stop3h 54m

$272

St. LouisWilmington

STL - ILM

STLILM

Lambert-St Louis

Thu 8/7

10:47 am-7:43 pm

2 stops7h 56m

$328

St. LouisWilmington

STL - ILM

STLILM

Lambert-St Louis

Thu 8/7

8:00 am-3:24 pm

1 stop6h 24m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from St. Louis to Wilmington

Have a flexible travel schedule? Discover the best time to fly to Wilmington from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Wilmington

How far ahead should I book a flight from St. Louis to Wilmington?

The best time to book flights from St. Louis to Wilmington is 35 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to Wilmington?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Wilmington (average of $296). Flying from St. Louis to Wilmington in December is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to ILM?

One of the essential ways to save on airfare from St. Louis to Wilmington is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 43% on airfare.

Reviews of airlines servicing Wilmington

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Wilmington to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from St. Louis to Wilmington round-trip?
Our cheapest airline available from St. Louis to Wilmington is American Airlines. Our recent data shows that you can find tickets from as low as $201 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $259 and $272 round-trip. American Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from St. Louis to Wilmington that include hotel bookings?
Yes. In addition to deals on St. Louis to Wilmington flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Wilmington?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Wilmington.
Can I find deals for business class flights from St. Louis to Wilmington?
Yes. Cheapflights offers flight deals from St. Louis to Wilmington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Wilmington?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Wilmington (average of $296). Flying from St. Louis to Wilmington in December is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from St. Louis to Wilmington

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$198	Average$308	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$221	Average$362	FlexibilityNo cancel fee	On-time71%

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$201+ Cheap flights from St. Louis to Wilmington (STL - ILM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Wilmington with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to Wilmington New Hanover County are usually found in February or July, booked 35 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from St. Louis to Wilmington

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Wilmington

Cheapest flights from St. Louis to WilmingtonExplore the most affordable flight options available from St. Louis to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from St. Louis to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Wilmington that are best for you.

Best time to book a flight from St. Louis to Wilmington

Have a flexible travel schedule? Discover the best time to fly to Wilmington from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Wilmington

How far ahead should I book a flight from St. Louis to Wilmington?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Wilmington. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from St. Louis to Wilmington?

What is the cheapest time of day to fly from STL to ILM?

Find hourly flight availability from St. Louis to Wilmington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Reviews of airlines servicing Wilmington

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Wilmington to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Wilmington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to Wilmington round-trip?

Can I find deals for flights from St. Louis to Wilmington that include hotel bookings?

How can I find direct flights from St. Louis to Wilmington?

Can I find deals for business class flights from St. Louis to Wilmington?

What is the cheapest month to book a flight from St. Louis to Wilmington?

Traveling to a place near Wilmington?

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Alternative routes for St. Louis to Wilmington

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Top 2 airlines flying from St. Louis to Wilmington

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Cheapest flights from St. Louis to Wilmington
Explore the most affordable flight options available from St. Louis to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.