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Cheap flights from Appleton to St. Louis from $159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Appleton to St. Louis departing on 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Appleton to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:10 pm - 1:10 pm-
21h 00m
Multiple Airlines Logo
5:19 pm - 4:46 pm-
23h 27m
$268Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
10:00 am - 3:38 pm-
5h 38m
United Airlines Logo
5:30 pm - 10:58 pm-
5h 28m
$299United Airlines
Fri, Sep 11 - Tue, Sep 15
American Airlines Logo
6:14 pm - 11:59 pm-
5h 45m
American Airlines Logo
11:32 am - 5:43 pm-
6h 11m
$299American Airlines
Wed, Nov 11 - Sun, Nov 15
American Airlines Logo
11:32 am - 4:51 pm-
5h 19m
American Airlines Logo
11:32 am - 5:43 pm-
6h 11m
$299American Airlines
Sat, Oct 31 - Tue, Nov 3
Delta Logo
6:00 am - 10:23 am-
4h 23m
Delta Logo
6:15 am - 10:17 am-
4h 02m
$299Delta
Fri, Sep 11 - Fri, Sep 18
Delta Logo
11:00 am - 4:44 pm-
5h 44m
Delta Logo
6:15 am - 10:17 am-
4h 02m
$299Delta
Thu, Aug 27 - Fri, Sep 25
United Airlines Logo
5:00 pm - 9:36 pm-
4h 36m
United Airlines Logo
8:00 am - 2:02 pm-
6h 02m
$299United Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
5:00 pm - 9:33 pm-
4h 33m
United Airlines Logo
12:59 pm - 7:05 pm-
6h 06m
$299United Airlines
Sat, Sep 19 - Mon, Sep 21
Multiple Airlines Logo
4:10 pm - 1:10 pm-
21h 00m
Multiple Airlines Logo
8:10 pm - 7:05 pm-
22h 55m
$382Multiple Airlines
Thu, Sep 17 - Sun, Sep 20
Multiple Airlines Logo
11:45 am - 10:40 am-
46h 55m
Multiple Airlines Logo
8:34 pm - 9:03 pm-
24h 29m
$396Multiple Airlines
Sat, Oct 31 - Thu, Nov 5

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Delta flights from Appleton to St. Louis

Our best Delta deals on Appleton to St. Louis flight tickets
Delta
Nov 11
ATW11:08 amAppleton Intl
5h 52m
1 stop
STL5:00 pmLambert-St Louis
Nov 15
STL6:40 amLambert-St Louis
3h 48m
1 stop
ATW10:28 amAppleton Intl
$299
Delta
Aug 20
ATW11:09 amAppleton Intl
6h 29m
1 stop
STL5:38 pmLambert-St Louis
Aug 23
STL6:30 amLambert-St Louis
3h 59m
1 stop
ATW10:29 amAppleton Intl
$329

American Airlines flights from Appleton to St. Louis

Our best American Airlines deals on Appleton to St. Louis flight tickets
American Airlines
Oct 31
ATW5:29 amAppleton Intl
5h 22m
1 stop
STL10:51 amLambert-St Louis
Nov 5
STL8:13 pmLambert-St Louis
3h 53m
1 stop
ATW12:06 amAppleton Intl
$319
American Airlines
Sep 14
ATW6:31 pmAppleton Intl
5h 56m
1 stop
STL12:27 amLambert-St Louis
Sep 19
STL5:00 amLambert-St Louis
6h 06m
1 stop
ATW11:06 amAppleton Intl
$334
American Airlines
Sep 14
ATW6:31 pmAppleton Intl
5h 56m
1 stop
STL12:27 amLambert-St Louis
Sep 19
STL5:18 pmLambert-St Louis
6h 53m
1 stop
ATW12:11 amAppleton Intl
$337

momondo 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, momondo users made 832,500 searches. Data last updated August 4, 2026.
Use the filters below to find and compare flights from Appleton to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 9/10

4:10 pm-1:10 pm

2 stops21h 00m

Lambert-St Louis

Sun 9/13

5:19 pm-4:46 pm

1 stop23h 27m

$268

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 9/11

10:00 am-3:38 pm

1 stop5h 38m

Lambert-St Louis

Tue 9/15

5:30 pm-10:58 pm

1 stop5h 28m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 11/11

6:14 pm-11:59 pm

1 stop5h 45m

Lambert-St Louis

Sun 11/15

11:32 am-5:43 pm

1 stop6h 11m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 10/31

11:32 am-4:51 pm

1 stop5h 19m

Lambert-St Louis

Tue 11/3

11:32 am-5:43 pm

1 stop6h 11m

$299
Quickest round-trip

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 9/11

6:00 am-10:23 am

1 stop4h 23m

Lambert-St Louis

Fri 9/18

6:15 am-10:17 am

1 stop4h 02m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 8/27

11:00 am-4:44 pm

1 stop5h 44m

Lambert-St Louis

Fri 9/25

6:15 am-10:17 am

1 stop4h 02m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 9/10

5:00 pm-9:36 pm

1 stop4h 36m

Lambert-St Louis

Sun 9/13

8:00 am-2:02 pm

1 stop6h 02m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 9/19

5:00 pm-9:33 pm

1 stop4h 33m

Lambert-St Louis

Mon 9/21

12:59 pm-7:05 pm

1 stop6h 06m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 9/17

4:10 pm-1:10 pm

2 stops21h 00m

Lambert-St Louis

Sun 9/20

8:10 pm-7:05 pm

1 stop22h 55m

$382

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 10/31

11:45 am-10:40 am

2 stops46h 55m

Lambert-St Louis

Thu 11/5

8:34 pm-9:03 pm

1 stop24h 29m

$396

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Appleton to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Appleton and St. Louis?

Prices are currently low for flights on this route.

Typical prices usually range from $288 to $413.
The lowest price recently found on this route was $268.

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

In general, February is the cheapest month to fly from Appleton to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $268. The month of March is another great option to travel to St. Louis, with average flight prices from Appleton averaging around $273.

When to book flights from Appleton to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Appleton to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Appleton to St. Louis (ATW to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Appleton to St. Louis

Fastest flight time

3h 51m

Direct flights

None
The fastest flight from Appleton to St. Louis takes 3h 51m
There are no direct flights from Appleton to St. Louis. There are no popular flight routes from Appleton to St. Louis.
Search flight deals

Frequently asked questions about flying from Appleton to St. Louis

  • How far is Appleton Intl to Lambert-St Louis by plane?

    A flight from Appleton Intl to Lambert-St Louis will travel around 399.8 mi. By plane, this route typically takes 3h 51m.

  • When did momondo last update prices for flights from Appleton Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Appleton Intl Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from Appleton Intl Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Appleton Intl Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Appleton Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Appleton to St. Louis?

Best airlines flying from Appleton to St. Louis

Compare and see reviews for airlines that fly from Appleton to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,845 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.8
8,483 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
Alton
O'Fallon
Clayton
Farmington
Fenton
Wentzville
Festus
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Appleton to St. Louis?

Finding the right flight to St. Louis from Appleton is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Appleton to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from Appleton which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Appleton to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Appleton to St. Louis.

I’m not ready to book a flight from Appleton to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Appleton are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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