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

Our cheapest airline available from Wilmington to St. Louis 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 $279 and $461 round-trip. Users have found that American Airlines is 41% cheaper than the other options available to this destination.

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

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

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

Monday flights are generally found to be more expensive for flights from Wilmington to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

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

Flights from Wilmington to St. Louis lean towards being more expensive in January. Prices are generally better when you fly from Wilmington to St. Louis in February, with the cheapest ticket starting at $233.

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

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

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

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

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

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

$192+ Flights from Wilmington to St. Louis

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Cheap flight deals from Wilmington to St. Louis

Round-trip from	$201 (American Airlines)
One-way from	$192 (American Airlines)
Popular in	January
Cheapest in	February
Average price	$278

From Wilmington New Hanover County to Lambert-St Louis

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One-way flight from Wilmington New Hanover County to Lambert-St Louis

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Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Wilmington to St. Louis

Cheapest flights from Wilmington to St. Louis
Explore the most affordable flight options available from Wilmington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

mar. 8/195:00 pmILM - STL

1 stop7h 14mAmerican Airlines

sáb. 8/234:32 pmSTL - ILM

1 stop6h 27mAmerican Airlines

Deal found 6/11

$201

jue. 7/174:59 pmILM - STL

1 stop6h 46mUnited Airlines

dom. 7/208:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Deal found 6/10

$279

lun. 7/1410:28 amILM - STL

1 stop6h 50mDelta

jue. 7/179:16 amSTL - ILM

1 stop5h 45mDelta

Deal found 6/10

$461

Best flights from Wilmington to St. Louis
Discover carefully curated flight deals from Wilmington to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

mar. 8/195:00 pmILM - STL

1 stop7h 14mAmerican Airlines

sáb. 8/234:32 pmSTL - ILM

1 stop6h 27mAmerican Airlines

Deal found 6/11

$201

jue. 7/174:59 pmILM - STL

1 stop6h 46mUnited Airlines

dom. 7/208:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Deal found 6/10

$279

lun. 7/1410:28 amILM - STL

1 stop6h 50mDelta

jue. 7/179:16 amSTL - ILM

1 stop5h 45mDelta

Deal found 6/10

$461

Last-minute flights from Wilmington to St. Louis
Discover last-minute flight deals from Wilmington to St. Louis. Data last updated junio 12, 2025 and is based on user searches.

mié. 6/185:00 amILM - STL

1 stop4h 13mAmerican Airlines

sáb. 6/214:17 pmSTL - ILM

1 stop4h 21mAmerican Airlines

Deal found 6/10

$323

mié. 6/186:00 pmILM - STL

1 stop6h 36mDelta

sáb. 6/216:40 amSTL - ILM

2 stops7h 33mDelta

Deal found 6/10

$922

lun. 7/1410:28 amILM - STL

1 stop6h 50mDelta

jue. 7/179:16 amSTL - ILM

1 stop5h 45mDelta

Deal found 6/10

$461

jue. 7/174:59 pmILM - STL

1 stop6h 46mUnited Airlines

dom. 7/208:00 amSTL - ILM

1 stop6h 24mUnited Airlines

Deal found 6/10

$279

One-way flights from Wilmington to St. Louis
Search for one-way flight options from Wilmington to St. Louis. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

sáb. 7/55:00 amILM - STL

1 stop5h 00mAmerican Airlines

Deal found 6/11

$192

sáb. 7/123:45 pmILM - STL

2 stops23h 52mUnited Airlines

Deal found 6/10

$595

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

WilmingtonSt. Louis

ILM - STL

ILMSTL

Wilmington New Hanover County

mar. 8/19

5:00 pm-11:14 pm

1 stop7h 14m

Lambert-St Louis

sáb. 8/23

4:32 pm-11:59 pm

1 stop6h 27m

$201

WilmingtonSt. Louis

ILM - STL

ILMSTL

Wilmington New Hanover County

jue. 7/17

4:59 pm-10:45 pm

1 stop6h 46m

Lambert-St Louis

dom. 7/20

8:00 am-3:24 pm

1 stop6h 24m

$279

WilmingtonSt. Louis

ILM - STL

ILMSTL

Wilmington New Hanover County

lun. 7/14

10:28 am-4:18 pm

1 stop6h 50m

Lambert-St Louis

jue. 7/17

9:16 am-4:01 pm

1 stop5h 45m

$461

WilmingtonSt. Louis

ILM - STL

ILMSTL

Wilmington New Hanover County

sáb. 7/5

5:00 am-9:00 am

1 stop5h 00m

$192

WilmingtonSt. Louis

ILM - STL

ILMSTL

Wilmington New Hanover County

sáb. 7/12

3:45 pm-2:37 pm

2 stops23h 52m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Wilmington 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 Wilmington to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Wilmington to St. Louis (average of $311). Flying from Wilmington to St. Louis in March is currently the most expensive (average of $356). 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 ILM to STL?

It’s typically best to fly out from Wilmington to St. Louis in the afternoon. Doing so could potentially save you 7% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 32.0 F).

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Wilmington to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,950 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

7,950 reviews

Delta

8.0

Very good

7,950 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

8,790 reviews

Delta

8.0

Very good

7,950 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

7,950 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 Wilmington to St. Louis round-trip?
Our cheapest airline available from Wilmington to St. Louis 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 $279 and $461 round-trip. Users have found that American Airlines is 41% cheaper than the other options available to this destination.
Can I find deals for flights from Wilmington to St. Louis that include hotel bookings?
Yes. In addition to deals on Wilmington to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Wilmington to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Wilmington to St. Louis.
Can I find deals for business class flights from Wilmington to St. Louis?
Yes. Cheapflights offers flight deals from Wilmington to St. Louis 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 Wilmington to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Wilmington to St. Louis (average of $311). Flying from Wilmington to St. Louis in March is currently the most expensive (average of $356). 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Festus

Alton

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Wilmington to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$223	Average$313	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$224	Average$343	FlexibilityNo cancel fee	On-time71%

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$192+ Cheap flights from Wilmington to St. Louis (ILM - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Wilmington to St. Louis with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Wilmington to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Wilmington to St. Louis

Cheapest flights from Wilmington to St. LouisExplore the most affordable flight options available from Wilmington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Explore the most affordable flight options available from Wilmington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Wilmington to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Wilmington to St. Louis by reading reviews from past customers. Users have also rated airlines 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 Wilmington to St. Louis. 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 Wilmington to St. Louis round-trip?

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

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

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

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

Traveling to a place near Wilmington?

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Alternative routes for Wilmington to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Wilmington to St. Louis

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Cheapest flights from Wilmington to St. Louis
Explore the most affordable flight options available from Wilmington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.