Cheap flights from La Crosse to St. Louis from $454

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from La Crosse to St. Louis departing on 11/8. 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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American Airlines Logo
9:59 am - 1:40 pmLSE-STL
3h 41m1 stop
American Airlines Logo
5:40 pm - 10:02 pmSTL-LSE
4h 22m1 stop
$454American Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11
American Airlines Logo
9:59 am - 4:12 pmLSE-STL
6h 13m1 stop
American Airlines Logo
10:15 am - 10:02 pmSTL-LSE
11h 47m2 stops
$460American Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11
American Airlines Logo
9:59 am - 7:29 pmLSE-STL
9h 30m2 stops
American Airlines Logo
10:15 am - 10:02 pmSTL-LSE
11h 47m2 stops
$465American Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11
American Airlines Logo
4:46 pm - 9:48 pmLSE-STL
5h 02m1 stop
American Airlines Logo
12:56 pm - 3:58 pmSTL-LSE
3h 02m1 stop
$468American Airlines
Find Deal
Sat, Apr 4 - Tue, Apr 7
American Airlines Logo
1:03 pm - 11:32 pmLSE-STL
10h 29m2 stops
American Airlines Logo
12:56 pm - 3:58 pmSTL-LSE
3h 02m1 stop
$474American Airlines
Find Deal
Sat, Apr 4 - Tue, Apr 7
American Airlines Logo
1:03 pm - 11:32 pmLSE-STL
10h 29m2 stops
American Airlines Logo
7:34 am - 3:58 pmSTL-LSE
8h 24m2 stops
$479American Airlines
Find Deal
Sat, Apr 4 - Tue, Apr 7

American Airlines flights from La Crosse to St. Louis

Our best American Airlines deals on La Crosse to St. Louis flight tickets
American Airlines
Nov 8
LSE9:59 amLa Crosse
3h 41m
1 stop
STL1:40 pmLambert-St Louis
Nov 11
STL5:40 pmLambert-St Louis
4h 22m
1 stop
LSE10:02 pmLa Crosse
American Airlines
Nov 8
LSE9:59 amLa Crosse
6h 13m
1 stop
STL4:12 pmLambert-St Louis
Nov 11
STL10:15 amLambert-St Louis
11h 47m
2 stops
LSE10:02 pmLa Crosse
American Airlines
Nov 8
LSE9:59 amLa Crosse
9h 30m
2 stops
STL7:29 pmLambert-St Louis
Nov 11
STL10:15 amLambert-St Louis
11h 47m
2 stops
LSE10:02 pmLa Crosse

momondo Fare Finder

 
Customize your flight search to find flights from La Crosse 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 29, 2025.
Use the filters below to find and compare flights from La Crosse to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Sat 11/8

9:59 am-1:40 pm

1 stop3h 41m

Lambert-St Louis

Tue 11/11

5:40 pm-10:02 pm

1 stop4h 22m

$454

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Sat 11/8

9:59 am-4:12 pm

1 stop6h 13m

Lambert-St Louis

Tue 11/11

10:15 am-10:02 pm

2 stops11h 47m

$460

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Sat 11/8

9:59 am-7:29 pm

2 stops9h 30m

Lambert-St Louis

Tue 11/11

10:15 am-10:02 pm

2 stops11h 47m

$465

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Sat 4/4

4:46 pm-9:48 pm

1 stop5h 02m

Lambert-St Louis

Tue 4/7

12:56 pm-3:58 pm

1 stop3h 02m

$468

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Sat 4/4

1:03 pm-11:32 pm

2 stops10h 29m

Lambert-St Louis

Tue 4/7

12:56 pm-3:58 pm

1 stop3h 02m

$474

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Sat 4/4

1:03 pm-11:32 pm

2 stops10h 29m

Lambert-St Louis

Tue 4/7

7:34 am-3:58 pm

2 stops8h 24m

$479

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 La Crosse 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 cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $390. 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 Friday because tickets tend to average around $410. 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 La Crosse in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $392 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $410 per ticket.

When to book flights from La Crosse to St. Louis

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

Cheap La Crosse to St. Louis (LSE to STL) flight deals and tips

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

Direct flights

None
There are no direct flights from La Crosse to St. Louis. There are no popular flight routes from La Crosse to St. Louis.
  • How far is La Crosse to Lambert-St Louis by plane?

    The distance between La Crosse and Lambert-St Louis is about 361.3 mi. By plane, this route typically takes 3h 41m.

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

    Prices for flights from La Crosse Airport to Lambert-St Louis Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from La Crosse 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.

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 La Crosse to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from La Crosse to St. Louis. momondo saves you time and could save you money on your trip.

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

All flight searches from La Crosse to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential La Crosse to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from La Crosse to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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1 adult
Fri 11/28
Fri 12/5

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