HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$229+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — STL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Appleton to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 junio 12, 2025.

Round-trip from

$229
(American Airlines)

Popular in

November

Cheapest in

July

Average price

$389
From Appleton Intl to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($14 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 June 2025
Search Deals

Find 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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
mié. 7/303:51 pmATW - STL
1 stop8h 08mAmerican Airlines
dom. 8/36:00 amSTL - ATW
1 stop3h 14mAmerican Airlines
Deal found 6/11$229
This Delta deal was found by Cheapflights users on 6/12. 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.
mié. 7/26:25 amATW - STL
1 stop4h 08mDelta
dom. 7/66:30 amSTL - ATW
1 stop4h 49mDelta
Deal found 6/12$234
This United Airlines deal was found by Cheapflights users on 6/12. 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.
vie. 6/275:29 pmATW - STL
1 stop5h 16mUnited Airlines
mar. 7/15:31 pmSTL - ATW
1 stop4h 04mUnited Airlines
Deal found 6/12$271
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/137:00 amATW - STL
2 stops26h 52mMultiple Airlines
mié. 7/1611:24 amSTL - ATW
2 stops24h 51mMultiple Airlines
Deal found 6/12$318

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 junio 12, 2025.
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

mié. 7/30

3:51 pm-11:59 pm

1 stop8h 08m

Lambert-St Louis

dom. 8/3

6:00 am-9:14 am

1 stop3h 14m

$229

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

mié. 7/2

6:25 am-10:33 am

1 stop4h 08m

Lambert-St Louis

dom. 7/6

6:30 am-11:19 am

1 stop4h 49m

$234

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

vie. 6/27

5:29 pm-10:45 pm

1 stop5h 16m

Lambert-St Louis

mar. 7/1

5:31 pm-9:35 pm

1 stop4h 04m

$271

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

dom. 7/13

7:00 am-9:52 am

2 stops26h 52m

Lambert-St Louis

mié. 7/16

11:24 am-12:15 pm

2 stops24h 51m

$318

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

mar. 6/17

7:00 am-1:26 pm

1 stop6h 26m

$290

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

mar. 6/17

9:50 am-8:54 pm

2 stops11h 04m

$295

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

mar. 6/17

6:30 am-10:15 pm

3 stops15h 45m

$1,091

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, August is the cheapest month in which you can book a flight from Appleton to St. Louis (average of $311). Flying from Appleton 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.

Rainfall in St. Louis by month

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

Plan your trip to St. Louis by taking into account the average temperature totals 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 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 junio 12, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Appleton to St. Louis 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
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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

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.

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

    According to our current data, American Airlines ($229), Delta ($234), and United Airlines ($271) offers the cheapest pricing from Appleton to St. Louis. Users have found that American Airlines is 27% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Appleton to St. Louis one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $290. Users have also found prices from $295 and $1,091 on American Airlines and United Airlines, respectively.

  • 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, August is the cheapest month in which you can book a flight from Appleton to St. Louis (average of $311). Flying from Appleton 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

Traveling to a place near Appleton?

Book flights to Appleton if you plan to visit one of these locations
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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Appleton to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Kansas City flights
O'Hare Intl to St. Louis flights
Minneapolis to St. Louis flights
Minneapolis to Kansas City flights
O'Hare Intl to Springfield flights
Milwaukee to Kansas City flights
Madison to Kansas City flights
Milwaukee to St. Louis flights
Madison to St. Louis flights
Appleton to Kansas City flights
O'Hare Intl to Columbia flights
Green Bay to Kansas City flights
Milwaukee to Springfield flights
Minneapolis to Springfield flights
Minneapolis to Branson flights
O'Hare Intl to Cape Girardeau flights
Appleton to Springfield flights
Green Bay to St. Louis flights
Rhinelander to St. Louis flights
Madison to Columbia flights
Green Bay to Springfield flights
Duluth to Kansas City flights
Wausau to St. Louis flights
Wausau to Springfield flights
Milwaukee to Joplin flights
La Crosse to St. Louis flights
La Crosse to Kansas City flights
La Crosse to Columbia flights
Green Bay to Joplin flights
O'Hare Intl to Branson flights
Escanaba to Kansas City flights
Wausau to Kansas City flights

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$273FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$218Average$300FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$228Average$370FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.