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Cheap flights from St. Louis to Louisville from $88

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 10/22. 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 (STL-SDF)

Cheap round-trip flights

American Airlines Logo
7:23 am - 7:24 pmSTL-SDF
11h 01m1 stop
American Airlines Logo
5:18 pm - 11:07 pmSDF-STL
6h 49m1 stop
$184American Airlines
Find Deal
Sat, Sep 6 - Mon, Sep 8
Southwest Logo
7:15 am - 12:45 pmSTL-SDF
4h 30m1 stop
Southwest Logo
12:55 pm - 6:35 pmSDF-STL
6h 40m2 stops
$202Southwest
Find Deal
Sat, Sep 6 - Mon, Sep 8
Delta Logo
3:36 pm - 10:46 pmSTL-SDF
6h 10m1 stop
Delta Logo
7:33 pm - 11:24 pmSDF-STL
4h 51m1 stop
$208Delta
Find Deal
Mon, Sep 22 - Fri, Sep 26
Southwest Logo
10:30 am - 10:25 pmSTL-SDF
10h 55m2 stops
Southwest Logo
4:20 pm - 10:35 pmSDF-STL
7h 15m2 stops
$213Southwest
Find Deal
Sat, Sep 6 - Mon, Sep 8
Delta Logo
6:01 am - 11:43 amSTL-SDF
4h 42m1 stop
Delta Logo
7:33 pm - 11:24 pmSDF-STL
4h 51m1 stop
$219Delta
Find Deal
Sun, Sep 28 - Sun, Oct 5
Logo
10:35 am - 10:27 amSTL-SDF
22h 52m1 stop
Logo
2:57 pm - 9:06 amSDF-STL
19h 09m2 stops
$266
Find Deal
Sun, Sep 28 - Sun, Oct 5
Spirit Airlines Logo
10:35 am - 10:04 pmSTL-SDF
10h 29m1 stop
Spirit Airlines Logo
8:08 pm - 10:02 amSDF-STL
38h 54m3 stops
$328Spirit Airlines
Find Deal
Sun, Sep 28 - Sun, Oct 5
Spirit Airlines Logo
10:35 am - 9:19 amSTL-SDF
21h 44m2 stops
Spirit Airlines Logo
8:08 pm - 10:02 amSDF-STL
38h 54m3 stops
$374Spirit Airlines
Find Deal
Sun, Sep 28 - Sun, Oct 5
United Airlines Logo
6:35 am - 1:17 pmSTL-SDF
5h 42m1 stop
United Airlines Logo
9:05 am - 2:33 pmSDF-STL
6h 28m1 stop
$453United Airlines
Find Deal
Thu, Aug 28 - Mon, Sep 1
United Airlines Logo
6:35 am - 5:15 pmSTL-SDF
9h 40m2 stops
United Airlines Logo
9:05 am - 2:33 pmSDF-STL
6h 28m1 stop
$655United Airlines
Find Deal
Thu, Aug 28 - Mon, Sep 1

American Airlines flights from St. Louis to Louisville

Our best American Airlines deals on St. Louis to Louisville flight tickets
American Airlines
Sep 6
STL7:23 amLambert-St Louis
11h 01m
1 stop
SDF7:24 pmLouisville Intl
Sep 8
SDF5:18 pmLouisville Intl
6h 49m
1 stop
STL11:07 pmLambert-St Louis
$184
Find similar
American Airlines
Oct 10
STL6:00 amLambert-St Louis
10h 21m
1 stop
SDF5:21 pmLouisville Intl
Oct 12
SDF2:21 pmLouisville Intl
7h 05m
1 stop
STL8:26 pmLambert-St Louis
$345
Find similar
American Airlines
Aug 27
STL6:06 amLambert-St Louis
9h 20m
2 stops
SDF4:26 pmLouisville Intl
Aug 31
SDF8:31 amLouisville Intl
4h 40m
1 stop
STL12:11 pmLambert-St Louis
$380
Find similar

Delta flights from St. Louis to Louisville

Our best Delta deals on St. Louis to Louisville flight tickets
Delta
Sep 22
STL3:36 pmLambert-St Louis
6h 10m
1 stop
SDF10:46 pmLouisville Intl
Sep 26
SDF7:33 pmLouisville Intl
4h 51m
1 stop
STL11:24 pmLambert-St Louis
$208
Find similar
Delta
Sep 28
STL6:01 amLambert-St Louis
4h 42m
1 stop
SDF11:43 amLouisville Intl
Oct 5
SDF7:33 pmLouisville Intl
4h 51m
1 stop
STL11:24 pmLambert-St Louis
$219
Find similar
Delta
Sep 25
STL5:11 pmLambert-St Louis
5h 41m
1 stop
SDF11:52 pmLouisville Intl
Sep 28
SDF6:00 amLouisville Intl
4h 59m
1 stop
STL9:59 amLambert-St Louis
$327
Find similar

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 August 14, 2025.
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

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sat 9/6

7:23 am-7:24 pm

1 stop11h 01m

Louisville Intl

Mon 9/8

5:18 pm-11:07 pm

1 stop6h 49m

$184

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sat 9/6

7:15 am-12:45 pm

1 stop4h 30m

Louisville Intl

Mon 9/8

12:55 pm-6:35 pm

2 stops6h 40m

$202

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Mon 9/22

3:36 pm-10:46 pm

1 stop6h 10m

Louisville Intl

Fri 9/26

7:33 pm-11:24 pm

1 stop4h 51m

$208

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sat 9/6

10:30 am-10:25 pm

2 stops10h 55m

Louisville Intl

Mon 9/8

4:20 pm-10:35 pm

2 stops7h 15m

$213

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 9/28

6:01 am-11:43 am

1 stop4h 42m

Louisville Intl

Sun 10/5

7:33 pm-11:24 pm

1 stop4h 51m

$219

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 9/28

10:35 am-10:27 am

1 stop22h 52m

Louisville Intl

Sun 10/5

2:57 pm-9:06 am

2 stops19h 09m

$266

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 9/28

10:35 am-10:04 pm

1 stop10h 29m

Louisville Intl

Sun 10/5

8:08 pm-10:02 am

3 stops38h 54m

$328

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 9/28

10:35 am-9:19 am

2 stops21h 44m

Louisville Intl

Sun 10/5

8:08 pm-10:02 am

3 stops38h 54m

$374

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 8/28

6:35 am-1:17 pm

1 stop5h 42m

Louisville Intl

Mon 9/1

9:05 am-2:33 pm

1 stop6h 28m

$453

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 8/28

6:35 am-5:15 pm

2 stops9h 40m

Louisville Intl

Mon 9/1

9:05 am-2:33 pm

1 stop6h 28m

$655

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 day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from St. Louis is on a Thursday. momondo users have found tickets for Thursday departures for as low as $346. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from St. Louis to Louisville on a Monday will generally be more expensive and average around $391. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest St. Louis to Louisville flights are usually those with departure times in the morning. Our users have found flights to Louisville in the morning for as low as $350. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $438 per ticket.

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

Best Price Found

$88

Fastest flight time

4h 08m

Direct flights

None

Airports in Louisville

1 airport
The best one-way flight to Louisville from St. Louis in the past 72 hours is $88. The best round-trip flight deal from St. Louis to Louisville found on momondo in the last 72 hours is $184.
The fastest flight from St. Louis to Louisville takes 4h 08m
There are no direct flights from St. Louis to Louisville. Popular non-direct route for this connection is Lambert-St Louis Airport - Louisville Intl Airport.
There is 1 airport near Louisville: Louisville Intl (SDF)
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 10m.

  • 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
SouthwestPriceFrom $226Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
DeltaPriceFrom $276Free CancellationRating
8.0
7,980 reviews
Search Delta flights

Traveling to a place near Louisville?

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