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Cheap flights from St. Louis to Louisville from $148

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Louisville departing on 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
5:40 am - 12:25 pm
STL
-
SDF
5h 45m
1 stop
Southwest Logo
6:40 am - 8:25 am
SDF
-
STL
2h 45m
1 stop
$270Southwest
Tue, Apr 14 - Sat, Apr 18
Southwest Logo
12:40 pm - 9:05 pm
STL
-
SDF
7h 25m
2 stops
Southwest Logo
6:40 am - 8:25 am
SDF
-
STL
2h 45m
1 stop
$276Southwest
Tue, Apr 14 - Sat, Apr 18
Southwest Logo
5:45 am - 2:45 pm
STL
-
SDF
8h 00m
2 stops
Southwest Logo
8:40 am - 4:20 pm
SDF
-
STL
8h 40m
2 stops
$285Southwest
Tue, Apr 14 - Sat, Apr 18
Southwest Logo
2:30 pm - 9:05 pm
STL
-
SDF
5h 35m
1 stop
Southwest Logo
8:10 pm - 10:45 pm
SDF
-
STL
3h 35m
1 stop
$293Southwest
Tue, Apr 14 - Thu, Apr 16
Southwest Logo
1:15 pm - 9:05 pm
STL
-
SDF
6h 50m
2 stops
Southwest Logo
8:10 pm - 10:45 pm
SDF
-
STL
3h 35m
1 stop
$298Southwest
Tue, Apr 14 - Thu, Apr 16
American Airlines Logo
5:21 pm - 11:48 pm
STL
-
SDF
5h 27m
1 stop
American Airlines Logo
7:01 pm - 10:17 pm
SDF
-
STL
4h 16m
1 stop
$309American Airlines
Sat, Apr 18 - Mon, Apr 20
Southwest Logo
12:40 pm - 9:05 pm
STL
-
SDF
7h 25m
2 stops
Southwest Logo
4:45 pm - 10:45 pm
SDF
-
STL
7h 00m
2 stops
$313Southwest
Tue, Apr 14 - Thu, Apr 16
Southwest Logo
5:40 am - 10:05 am
STL
-
SDF
3h 25m
1 stop
Southwest Logo
4:45 pm - 10:45 pm
SDF
-
STL
7h 00m
2 stops
$314Southwest
Sat, Apr 18 - Mon, Apr 20
Southwest Logo
10:55 am - 5:45 pm
STL
-
SDF
5h 50m
2 stops
Southwest Logo
5:25 pm - 10:40 pm
SDF
-
STL
6h 15m
2 stops
$319Southwest
Sat, Apr 18 - Mon, Apr 20
United Airlines Logo
5:28 pm - 11:56 pm
STL
-
SDF
5h 28m
1 stop
United Airlines Logo
11:11 am - 4:39 pm
SDF
-
STL
6h 28m
1 stop
$335United Airlines
Tue, May 12 - Wed, May 13

American Airlines flights from St. Louis to Louisville

Our best American Airlines deals on St. Louis to Louisville flight tickets
American Airlines
Apr 18
STL5:21 pmLambert-St Louis
5h 27m
1 stop
SDF11:48 pmLouisville Intl
Apr 20
SDF7:01 pmLouisville Intl
4h 16m
1 stop
STL10:17 pmLambert-St Louis
$309
American Airlines
Apr 24
STL3:38 pmLambert-St Louis
5h 03m
1 stop
SDF9:41 pmLouisville Intl
May 1
SDF4:12 pmLouisville Intl
4h 18m
1 stop
STL7:30 pmLambert-St Louis
$374
American Airlines
Jul 13
STL6:00 amLambert-St Louis
6h 56m
1 stop
SDF1:56 pmLouisville Intl
Jul 18
SDF2:31 pmLouisville Intl
6h 58m
1 stop
STL8:29 pmLambert-St Louis
$375

United Airlines flights from St. Louis to Louisville

Our best United Airlines deals on St. Louis to Louisville flight tickets
United Airlines
May 12
STL5:28 pmLambert-St Louis
5h 28m
1 stop
SDF11:56 pmLouisville Intl
May 13
SDF11:11 amLouisville Intl
6h 28m
1 stop
STL4:39 pmLambert-St Louis
$335
United Airlines
May 12
STL7:09 pmLambert-St Louis
3h 47m
1 stop
SDF11:56 pmLouisville Intl
May 13
SDF11:11 amLouisville Intl
6h 28m
1 stop
STL4:39 pmLambert-St Louis
$355
United Airlines
May 12
STL7:45 amLambert-St Louis
10h 57m
2 stops
SDF7:42 pmLouisville Intl
May 13
SDF11:11 amLouisville Intl
6h 28m
1 stop
STL4:39 pmLambert-St Louis
$637

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Louisville 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 March 15, 2026.
Use the filters below to find and compare flights from St. Louis to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/14

5:40 am-12:25 pm

1 stop5h 45m

Louisville Intl

Sat 4/18

6:40 am-8:25 am

1 stop2h 45m

$270

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/14

12:40 pm-9:05 pm

2 stops7h 25m

Louisville Intl

Sat 4/18

6:40 am-8:25 am

1 stop2h 45m

$276

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/14

5:45 am-2:45 pm

2 stops8h 00m

Louisville Intl

Sat 4/18

8:40 am-4:20 pm

2 stops8h 40m

$285

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/14

2:30 pm-9:05 pm

1 stop5h 35m

Louisville Intl

Thu 4/16

8:10 pm-10:45 pm

1 stop3h 35m

$293

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/14

1:15 pm-9:05 pm

2 stops6h 50m

Louisville Intl

Thu 4/16

8:10 pm-10:45 pm

1 stop3h 35m

$298

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sat 4/18

5:21 pm-11:48 pm

1 stop5h 27m

Louisville Intl

Mon 4/20

7:01 pm-10:17 pm

1 stop4h 16m

$309

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/14

12:40 pm-9:05 pm

2 stops7h 25m

Louisville Intl

Thu 4/16

4:45 pm-10:45 pm

2 stops7h 00m

$313

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sat 4/18

5:40 am-10:05 am

1 stop3h 25m

Louisville Intl

Mon 4/20

4:45 pm-10:45 pm

2 stops7h 00m

$314

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sat 4/18

10:55 am-5:45 pm

2 stops5h 50m

Louisville Intl

Mon 4/20

5:25 pm-10:40 pm

2 stops6h 15m

$319

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 5/12

5:28 pm-11:56 pm

1 stop5h 28m

Louisville Intl

Wed 5/13

11:11 am-4:39 pm

1 stop6h 28m

$335

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 Louisville from

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

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 airline that flies from Lambert-St Louis to Louisville Intl?

Delta, Southwest, and American Airlines are the most popular carriers operating from Lambert-St Louis to Louisville Intl

What airlines fly to Louisville?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Louisville from St. Louis according to our data. American Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 3 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Louisville

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

Cheap St. Louis to Louisville (STL to SDF) flight deals and tips

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

Fastest flight time

4h 02m

Direct flights

None
The fastest flight from St. Louis to Louisville takes 4h 02m
There are no direct flights from St. Louis to Louisville. There are no popular flight routes from St. Louis to Louisville.
Search flight deals

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

    There are 241.7 mi between Lambert-St Louis and Louisville Intl. By plane, this route typically takes 4h 02m.

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

    Prices for flights from Lambert-St Louis Airport to Louisville Intl Airport are updated daily.

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

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

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The required travel and health documents for your Louisville Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Louisville Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from St. Louis to Louisville

Compare and see reviews for airlines that fly from St. Louis to Louisville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $118Free CancellationRating
7.9
8,293 reviews
Search Delta flights
SouthwestPriceFrom $216Free CancellationRating
8.0
4,318 reviews
Search Southwest flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Bardstown
West Baden Springs
Jeffersonville
New Albany
Shepherdsville
Corydon
Elizabeth
Brandenburg
Charlestown
Springfield
Georgetown

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Louisville from St. Louis.

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

Yes. momondo enables you to select and highlight flights to Louisville from St. Louis with this policy.

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

Once you have performed a search for St. Louis to Louisville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for St. Louis to Louisville flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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