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Cheap flights from Appleton to St. Louis from $170

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 11/26. 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.
Delta Logo
12:06 pm - 4:50 pmATW-STL
4h 44m1 stop
Delta Logo
6:30 am - 11:11 amSTL-ATW
4h 41m1 stop
$229Delta
Find Deal
Sat, Apr 11 - Wed, Apr 15
United Airlines Logo
8:15 am - 2:24 pmATW-STL
6h 09m1 stop
United Airlines Logo
5:24 pm - 9:33 pmSTL-ATW
4h 09m1 stop
$234United Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
United Airlines Logo
5:20 pm - 10:45 pmATW-STL
5h 25m1 stop
United Airlines Logo
10:00 am - 3:07 pmSTL-ATW
5h 07m1 stop
$251United Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
United Airlines Logo
5:20 pm - 10:45 pmATW-STL
5h 25m1 stop
United Airlines Logo
10:00 am - 3:07 pmSTL-ATW
5h 07m1 stop
$255United Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
American Airlines Logo
5:10 am - 1:18 pmATW-STL
8h 08m2 stops
American Airlines Logo
1:43 pm - 7:09 pmSTL-ATW
5h 26m1 stop
$265American Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
American Airlines Logo
5:10 am - 1:18 pmATW-STL
8h 08m2 stops
American Airlines Logo
9:30 am - 7:09 pmSTL-ATW
9h 39m2 stops
$270American Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
American Airlines Logo
5:50 pm - 10:11 pmATW-STL
4h 21m1 stop
American Airlines Logo
10:03 am - 4:14 pmSTL-ATW
6h 11m1 stop
$289American Airlines
Find Deal
Wed, Feb 18 - Sat, Feb 21
Delta Logo
11:00 am - 4:55 pmATW-STL
5h 55m1 stop
Delta Logo
6:30 am - 11:21 amSTL-ATW
4h 51m1 stop
$299Delta
Find Deal
Fri, Mar 27 - Sun, Mar 29
American Airlines Logo
5:50 pm - 10:11 pmATW-STL
4h 21m1 stop
American Airlines Logo
1:36 pm - 11:22 pmSTL-ATW
9h 46m2 stops
$325American Airlines
Find Deal
Wed, Feb 18 - Sat, Feb 21
Delta Logo
12:03 pm - 4:47 pmATW-STL
4h 44m1 stop
Delta Logo
6:35 am - 10:23 amSTL-ATW
3h 48m1 stop
$338Delta
Find Deal
Wed, Jan 7 - Fri, Jan 9

Delta flights from Appleton to St. Louis

Our best Delta deals on Appleton to St. Louis flight tickets
Delta
Apr 11
ATW12:06 pmAppleton Intl
4h 44m
1 stop
STL4:50 pmLambert-St Louis
Apr 15
STL6:30 amLambert-St Louis
4h 41m
1 stop
ATW11:11 amAppleton Intl
$229
Find similar
Delta
Mar 27
ATW11:00 amAppleton Intl
5h 55m
1 stop
STL4:55 pmLambert-St Louis
Mar 29
STL6:30 amLambert-St Louis
4h 51m
1 stop
ATW11:21 amAppleton Intl
$299
Find similar
Delta
Nov 1
ATW11:11 amAppleton Intl
5h 21m
1 stop
STL4:32 pmLambert-St Louis
Nov 5
STL10:45 amLambert-St Louis
6h 02m
1 stop
ATW4:47 pmAppleton Intl
$309
Find similar

United Airlines flights from Appleton to St. Louis

Our best United Airlines deals on Appleton to St. Louis flight tickets
United Airlines
Nov 26
ATW8:15 amAppleton Intl
6h 09m
1 stop
STL2:24 pmLambert-St Louis
Dec 1
STL5:24 pmLambert-St Louis
4h 09m
1 stop
ATW9:33 pmAppleton Intl
$234
Find similar
United Airlines
Dec 3
ATW5:20 pmAppleton Intl
5h 25m
1 stop
STL10:45 pmLambert-St Louis
Dec 9
STL10:00 amLambert-St Louis
5h 07m
1 stop
ATW3:07 pmAppleton Intl
$251
Find similar
United Airlines
Dec 3
ATW5:20 pmAppleton Intl
5h 25m
1 stop
STL10:45 pmLambert-St Louis
Dec 9
STL10:00 amLambert-St Louis
5h 07m
1 stop
ATW3:07 pmAppleton Intl
$255
Find similar

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 October 30, 2025.
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

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 4/11

12:06 pm-4:50 pm

1 stop4h 44m

Lambert-St Louis

Wed 4/15

6:30 am-11:11 am

1 stop4h 41m

$229

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 11/26

8:15 am-2:24 pm

1 stop6h 09m

Lambert-St Louis

Mon 12/1

5:24 pm-9:33 pm

1 stop4h 09m

$234

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 12/3

5:20 pm-10:45 pm

1 stop5h 25m

Lambert-St Louis

Tue 12/9

10:00 am-3:07 pm

1 stop5h 07m

$251

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 12/3

5:20 pm-10:45 pm

1 stop5h 25m

Lambert-St Louis

Tue 12/9

10:00 am-3:07 pm

1 stop5h 07m

$255

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 12/3

5:10 am-1:18 pm

2 stops8h 08m

Lambert-St Louis

Tue 12/9

1:43 pm-7:09 pm

1 stop5h 26m

$265

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 12/3

5:10 am-1:18 pm

2 stops8h 08m

Lambert-St Louis

Tue 12/9

9:30 am-7:09 pm

2 stops9h 39m

$270

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 2/18

5:50 pm-10:11 pm

1 stop4h 21m

Lambert-St Louis

Sat 2/21

10:03 am-4:14 pm

1 stop6h 11m

$289

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 3/27

11:00 am-4:55 pm

1 stop5h 55m

Lambert-St Louis

Sun 3/29

6:30 am-11:21 am

1 stop4h 51m

$299

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 2/18

5:50 pm-10:11 pm

1 stop4h 21m

Lambert-St Louis

Sat 2/21

1:36 pm-11:22 pm

2 stops9h 46m

$325

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 1/7

12:03 pm-4:47 pm

1 stop4h 44m

Lambert-St Louis

Fri 1/9

6:35 am-10:23 am

1 stop3h 48m

$338

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

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

In general, August 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 $271. The month of July is another great option to travel to St. Louis, with average flight prices from Appleton averaging around $272.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $263. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $370. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Appleton in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $280 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $341 per ticket.

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

Direct flights

None
There are no direct flights from Appleton to St. Louis. There are no popular flight routes from Appleton to St. Louis.
Search flight deals

  • 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 47m.

  • 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
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
United AirlinesPriceFrom $247Free CancellationRating
7.4
8,998 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
Florissant
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
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.

An easier way to manage your St. Louis trip

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Sat 11/29
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