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St. Louis

$249+ Cheap flights from Appleton to St. Louis (ATW - STL)

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — STL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Appleton to St. Louis

Cheapest flights from Appleton to St. Louis
Explore the most affordable flight options available from Appleton to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/612:12 pm
ATW
-
STL
1 stop4h 33m
Delta
Sun 3/86:32 am
STL
-
ATW
1 stop4h 00m
Delta
Deal found 1/26$249
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/105:23 pm
ATW
-
STL
1 stop5h 35m
United Airlines
Sat 2/149:55 am
STL
-
ATW
1 stop5h 12m
United Airlines
Deal found 1/26$259
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1011:25 am
ATW
-
STL
1 stop6h 51m
American Airlines
Sat 2/149:15 am
STL
-
ATW
2 stops8h 47m
American Airlines
Deal found 1/26$264
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:23 pm
ATW
-
STL
1 stop4h 19m
United Airlines
Sun 3/87:41 am
STL
-
ATW
1 stop6h 22m
United Airlines
Deal found 1/26$266
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:23 pm
ATW
-
STL
1 stop3h 44m
United Airlines
Sat 3/215:00 am
STL
-
ATW
1 stop3h 21m
United Airlines
Deal found 1/27$271
This American Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:39 pm
ATW
-
STL
1 stop5h 09m
American Airlines
Sat 2/287:05 am
STL
-
ATW
2 stops10h 57m
American Airlines
Deal found 1/25$275
This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:00 am
ATW
-
STL
1 stop5h 58m
Delta
Mon 4/66:32 am
STL
-
ATW
1 stop4h 00m
Delta
Deal found 1/25$284
This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/411:03 am
ATW
-
STL
1 stop5h 34m
Delta
Sat 2/711:23 am
STL
-
ATW
1 stop4h 17m
Delta
Deal found 1/25$299
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/272:39 pm
ATW
-
STL
1 stop6h 44m
United Airlines
Sun 3/297:45 am
STL
-
ATW
1 stop4h 03m
United Airlines
Deal found 1/27$302
This American Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:15 am
ATW
-
STL
2 stops7h 49m
American Airlines
Sat 2/78:31 am
STL
-
ATW
1 stop3h 38m
American Airlines
Deal found 1/25$304
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/305:23 pm
ATW
-
STL
1 stop3h 50m
United Airlines
Mon 2/26:30 am
STL
-
ATW
1 stop5h 30m
United Airlines
Deal found 1/25$309

Find flight deals from Appleton to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Appleton (ATW) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Delta)

Popular in

June

Cheapest in

November

Average price

$296
Provider with most accurate pricing for Appleton Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-Lambert-St Louis flights.
Search Deals
From Appleton Intl to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Appleton to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Appleton to St. Louis that are best for you.

Fly from

Appleton

Fly to

St. Louis

Route

Depart

Return

Price

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Mon 2/23

5:23 pm-9:05 pm

1 stop3h 42m

Lambert-St Louis

Mon 3/2

7:41 am-1:58 pm

1 stop6h 17m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 3/6

12:12 pm-4:45 pm

1 stop4h 33m

Lambert-St Louis

Sun 3/8

6:32 am-10:32 am

1 stop4h 00m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 2/26

6:39 pm-11:48 pm

1 stop5h 09m

Lambert-St Louis

Sat 2/28

8:00 am-12:51 pm

1 stop4h 51m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 6/18

3:47 pm-9:11 pm

1 stop5h 24m

Lambert-St Louis

Sun 6/21

9:23 am-3:12 pm

1 stop5h 49m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 2/19

5:23 pm-9:40 pm

1 stop4h 17m

Lambert-St Louis

Sun 2/22

6:25 am-11:58 am

1 stop5h 33m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sun 5/17

2:43 pm-9:08 pm

1 stop6h 25m

Lambert-St Louis

Sat 5/23

5:29 pm-9:21 pm

1 stop3h 52m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 2/20

5:23 pm-9:40 pm

1 stop4h 17m

Lambert-St Louis

Sun 2/22

7:41 am-11:58 am

1 stop4h 17m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 3/6

5:23 pm-9:42 pm

1 stop4h 19m

Lambert-St Louis

Sun 3/8

7:41 am-2:03 pm

1 stop6h 22m

$266

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Tue 2/10

7:15 am-3:04 pm

2 stops7h 49m

Lambert-St Louis

Sat 2/14

7:05 am-6:02 pm

2 stops10h 57m

$270

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sun 3/15

5:23 pm-9:07 pm

1 stop3h 44m

Lambert-St Louis

Sat 3/21

5:00 am-8:21 am

1 stop3h 21m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 12 results
1
2

Compare providers for flights from Appleton to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Appleton to St. Louis in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Appleton-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Appleton-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Appleton-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Appleton-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Appleton-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Currently, April is the cheapest month in which you can book a flight from Appleton to St. Louis (average of $156). Flying from Appleton to St. Louis in May is currently the most expensive (average of $262). 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.

How much does it cost to fly round-trip from Appleton to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated January 27, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Appleton to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,118 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,118 reviews
Delta
7.9
Good
8,118 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,118 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,197 reviews
Delta
7.9
Good
8,118 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Appleton to St. Louis?

    There are many flights that can get you from Appleton to St. Louis in 3h 42m. Fly via United Airlines or Delta to get the fastest option. There are 392 mi between Appleton and St. Louis. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Delta ($213), American Airlines ($228), and United Airlines ($278) offers the cheapest pricing from Appleton to St. Louis. Users have found that Delta is 29% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Appleton 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 Appleton to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from Appleton to St. Louis (average of $156). Flying from Appleton to St. Louis in May is currently the most expensive (average of $262). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Appleton to St. Louis

Discover the top 3 airlines that operate flights from Appleton to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$213Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$357FlexibilityNo cancel feeOn-time69%

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