SDF - STL

$122 Find Cheap Flights from Louisville to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to St. Louis departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to St. Louis, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$254
Multiple Airlines
sex 2/20seg 2/23
SDF - STL • 1 stop
Cheapest one-way
$122
Typical prices: $177-$218
Multiple Airlines
qui 2/5
SDF - STL • 2 stops
Top airlines
Delta
Cheapest • from $293 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to St. Louis (SDF-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to St. Louis

sex, fev 20 - seg, fev 23
Multiple Airlines Logo
1:19 pm - 12:27 am
SDF
-
STL
12h 08m
1 stop
Multiple Airlines Logo
8:22 pm - 2:38 pm
STL
-
SDF
17h 16m
2 stops
$254Multiple Airlines
ter, fev 17 - qui, fev 19
Delta Logo
6:23 am - 10:43 am
SDF
-
STL
5h 20m
1 stop
Delta Logo
6:00 am - 11:27 am
STL
-
SDF
4h 27m
1 stop
$293Delta
qui, fev 19 - dom, fev 22
Multiple Airlines Logo
2:26 pm - 6:51 am
SDF
-
STL
17h 25m
2 stops
Multiple Airlines Logo
3:49 pm - 12:21 pm
STL
-
SDF
19h 32m
1 stop
$323Multiple Airlines
qui, fev 19 - seg, fev 23
American Airlines Logo
6:12 pm - 11:48 pm
SDF
-
STL
6h 36m
1 stop
American Airlines Logo
6:57 pm - 12:27 am
STL
-
SDF
4h 30m
1 stop
$331American Airlines
dom, mai 17 - qua, mai 20
Southwest Logo
7:00 am - 9:05 am
SDF
-
STL
3h 05m
1 stop
Southwest Logo
5:35 am - 9:50 am
STL
-
SDF
3h 15m
1 stop
$332Southwest
qui, fev 19 - seg, fev 23
American Airlines Logo
6:12 pm - 11:48 pm
SDF
-
STL
6h 36m
1 stop
American Airlines Logo
2:19 pm - 10:43 pm
STL
-
SDF
7h 24m
2 stops
$336American Airlines
dom, mai 17 - qua, mai 20
Southwest Logo
7:25 am - 11:40 am
SDF
-
STL
5h 15m
1 stop
Southwest Logo
2:30 pm - 10:55 pm
STL
-
SDF
7h 25m
2 stops
$337Southwest
qui, fev 19 - seg, fev 23
Southwest Logo
11:40 am - 8:20 pm
SDF
-
STL
9h 40m
2 stops
Southwest Logo
2:55 pm - 11:05 pm
STL
-
SDF
7h 10m
2 stops
$342Southwest
qui, fev 19 - dom, fev 22
Delta Logo
8:55 am - 2:47 pm
SDF
-
STL
6h 52m
1 stop
Delta Logo
6:56 pm - 11:58 pm
STL
-
SDF
4h 02m
1 stop
$343Delta
qui, fev 19 - dom, fev 22
Southwest Logo
11:40 am - 8:20 pm
SDF
-
STL
9h 40m
2 stops
Southwest Logo
3:10 pm - 12:45 am
STL
-
SDF
8h 35m
2 stops
$354Southwest
Booking Insights

KAYAK's insights & trends for Louisville to St. Louis flights

Get data-powered insights and trends into flights from Louisville to St. Louis to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Louisville to St. Louis?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Louisville to St. Louis were found on Delta ($293) and American Airlines ($331).

Find deals

Good to know

Cheapest flight$122
Flight from Louisville to St. Louis

When to book flights from Louisville to St. Louis

Are your dates flexible? Find out the best times to travel from Louisville to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to St. Louis

  • What is the cheapest flight from Louisville to St. Louis?

    In the last 3 days, the lowest price for a flight from Louisville to St. Louis was $122 for a one-way ticket and $254 for a round-trip.

  • Do I need a passport to fly between Louisville and St. Louis?

    No

  • Which aircraft models fly most regularly from Louisville to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to St. Louis?

    SkyTeam is the only airline alliance operating flights between Louisville and St. Louis.

  • How does KAYAK find such low prices on flights from Louisville to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Louisville with another airline. Booking your flights between Louisville and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Louisville to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Louisville to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8088 reviews
7.8Entertainment
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
Airline reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

4.0 OkayJohn, Jan 2026
DAL - ATL
Read more Delta reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

Good seat comfort ORF to ATL. Bad seat ATL to SEA (terrible lumbar support, hard, ouch)..

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Everything you need to know for your flight from Louisville to St. Louis

Information on your arrival and departure airports

Louisville (SDF)
St. Louis (STL)