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Cheap flights from Appleton to St. Louis from $237

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Appleton to St. Louis departing on 5/28. 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
0 bags

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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
2:44 pm - 11:57 pm
ATW
-
STL
9h 13m
1 stop
Multiple Airlines Logo
4:19 pm - 9:52 pm
STL
-
ATW
29h 33m
1 stop
$237Multiple Airlines
Thu, May 28 - Wed, Jun 3
Multiple Airlines Logo
6:06 pm - 11:57 pm
ATW
-
STL
29h 51m
1 stop
Multiple Airlines Logo
4:19 pm - 9:52 pm
STL
-
ATW
29h 33m
1 stop
$238Multiple Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
6:06 pm - 5:33 pm
ATW
-
STL
23h 27m
2 stops
Multiple Airlines Logo
4:19 pm - 9:52 pm
STL
-
ATW
29h 33m
1 stop
$241Multiple Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
2:44 pm - 11:57 pm
ATW
-
STL
9h 13m
1 stop
Multiple Airlines Logo
8:08 pm - 9:52 pm
STL
-
ATW
25h 44m
2 stops
$286Multiple Airlines
Thu, May 28 - Wed, Jun 3
Delta Logo
12:32 pm - 4:46 pm
ATW
-
STL
4h 14m
1 stop
Delta Logo
11:25 am - 3:33 pm
STL
-
ATW
4h 08m
1 stop
$289Delta
Thu, May 28 - Tue, Jun 2
American Airlines Logo
3:50 pm - 11:59 pm
ATW
-
STL
8h 09m
2 stops
American Airlines Logo
5:25 am - 12:09 pm
STL
-
ATW
6h 44m
1 stop
$294American Airlines
Thu, May 28 - Tue, Jun 2
American Airlines Logo
10:58 am - 7:00 pm
ATW
-
STL
8h 02m
2 stops
American Airlines Logo
9:24 am - 6:09 pm
STL
-
ATW
8h 45m
2 stops
$300American Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
6:30 pm - 11:56 pm
ATW
-
STL
5h 26m
1 stop
American Airlines Logo
5:51 am - 10:05 am
STL
-
ATW
4h 14m
1 stop
$319American Airlines
Thu, May 14 - Mon, May 18
American Airlines Logo
3:50 pm - 11:44 pm
ATW
-
STL
7h 54m
2 stops
American Airlines Logo
9:24 am - 6:09 pm
STL
-
ATW
8h 45m
2 stops
$321American Airlines
Thu, May 28 - Tue, Jun 2
American Airlines Logo
5:40 am - 1:22 pm
ATW
-
STL
7h 42m
2 stops
American Airlines Logo
8:03 pm - 11:40 pm
STL
-
ATW
3h 37m
1 stop
$324American Airlines
Sat, May 16 - Mon, May 18

American Airlines flights from Appleton to St. Louis

Our best American Airlines deals on Appleton to St. Louis flight tickets
American Airlines
May 28
ATW3:50 pmAppleton Intl
8h 09m
2 stops
STL11:59 pmLambert-St Louis
Jun 2
STL5:25 amLambert-St Louis
6h 44m
1 stop
ATW12:09 pmAppleton Intl
$294
American Airlines
May 27
ATW10:58 amAppleton Intl
8h 02m
2 stops
STL7:00 pmLambert-St Louis
Jun 3
STL9:24 amLambert-St Louis
8h 45m
2 stops
ATW6:09 pmAppleton Intl
$300
American Airlines
May 14
ATW6:30 pmAppleton Intl
5h 26m
1 stop
STL11:56 pmLambert-St Louis
May 18
STL5:51 amLambert-St Louis
4h 14m
1 stop
ATW10:05 amAppleton Intl
$319

United Airlines flights from Appleton to St. Louis

Our best United Airlines deals on Appleton to St. Louis flight tickets
United Airlines
May 13
ATW9:14 amAppleton Intl
5h 18m
1 stop
STL2:32 pmLambert-St Louis
May 17
STL7:45 amLambert-St Louis
4h 09m
1 stop
ATW11:54 amAppleton Intl
$339
United Airlines
May 30
ATW8:00 amAppleton Intl
4h 07m
1 stop
STL12:07 pmLambert-St Louis
Jun 2
STL7:22 amLambert-St Louis
4h 27m
1 stop
ATW11:49 amAppleton Intl
$359
United Airlines
May 14
ATW3:45 pmAppleton Intl
5h 28m
1 stop
STL9:13 pmLambert-St Louis
May 18
STL5:28 pmLambert-St Louis
4h 02m
1 stop
ATW9:30 pmAppleton Intl
$557

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 May 3, 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 5/28

2:44 pm-11:57 pm

1 stop9h 13m

Lambert-St Louis

Wed 6/3

4:19 pm-9:52 pm

1 stop29h 33m

$237

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 5/27

6:06 pm-11:57 pm

1 stop29h 51m

Lambert-St Louis

Wed 6/3

4:19 pm-9:52 pm

1 stop29h 33m

$238

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 5/27

6:06 pm-5:33 pm

2 stops23h 27m

Lambert-St Louis

Wed 6/3

4:19 pm-9:52 pm

1 stop29h 33m

$241

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 5/28

2:44 pm-11:57 pm

1 stop9h 13m

Lambert-St Louis

Wed 6/3

8:08 pm-9:52 pm

2 stops25h 44m

$286
Quickest round-trip

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 5/28

12:32 pm-4:46 pm

1 stop4h 14m

Lambert-St Louis

Tue 6/2

11:25 am-3:33 pm

1 stop4h 08m

$289

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 5/28

3:50 pm-11:59 pm

2 stops8h 09m

Lambert-St Louis

Tue 6/2

5:25 am-12:09 pm

1 stop6h 44m

$294

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 5/27

10:58 am-7:00 pm

2 stops8h 02m

Lambert-St Louis

Wed 6/3

9:24 am-6:09 pm

2 stops8h 45m

$300

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 5/14

6:30 pm-11:56 pm

1 stop5h 26m

Lambert-St Louis

Mon 5/18

5:51 am-10:05 am

1 stop4h 14m

$319

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 5/28

3:50 pm-11:44 pm

2 stops7h 54m

Lambert-St Louis

Tue 6/2

9:24 am-6:09 pm

2 stops8h 45m

$321

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 5/16

5:40 am-1:22 pm

2 stops7h 42m

Lambert-St Louis

Mon 5/18

8:03 pm-11:40 pm

1 stop3h 37m

$324

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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?

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

In general, March 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 $263. The month of November is another great option to travel to St. Louis, with average flight prices from Appleton averaging around $268.

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 46m

Direct flights

None
The fastest flight from Appleton to St. Louis takes 3h 46m
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 46m.

  • 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
DeltaPriceFrom $213Free CancellationRating
7.9
8,460 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,682 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
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

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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