SDF - STL

$183 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 2/2. 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
$235
United Airlines
Tue 2/3Tue 2/10
SDF - STL • 1 stop
Cheapest one-way
$129
Typical prices: $177-$218
Multiple Airlines
Mon 2/2
SDF - STL • 2 stops
Top airlines
United Airlines
Cheapest • from $235 (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

Tue, Feb 3 - Tue, Feb 10
United Airlines Logo
6:12 pm - 10:58 pm
SDF
-
STL
5h 46m1 stop
United Airlines Logo
3:11 pm - 10:30 pm
STL
-
SDF
6h 19m1 stop
$235United Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
3:36 pm - 11:33 pm
SDF
-
STL
32h 57m2 stops
Multiple Airlines Logo
3:49 pm - 1:00 pm
STL
-
SDF
20h 11m1 stop
$239Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
11:14 am - 9:15 pm
SDF
-
STL
11h 01m2 stops
American Airlines Logo
6:00 am - 2:48 pm
STL
-
SDF
7h 48m2 stops
$246American Airlines
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
1:55 pm - 11:33 pm
SDF
-
STL
10h 38m1 stop
Multiple Airlines Logo
5:42 pm - 2:41 pm
STL
-
SDF
19h 59m2 stops
$256Multiple Airlines
Sat, Jan 31 - Sat, Jan 31
Delta Logo
6:23 am - 10:43 am
SDF
-
STL
5h 20m1 stop
Delta Logo
3:31 pm - 11:06 pm
STL
-
SDF
6h 35m1 stop
$257Delta
Mon, Feb 9 - Wed, Feb 11
Southwest Logo
6:25 am - 9:35 am
SDF
-
STL
4h 10m1 stop
Southwest Logo
2:35 pm - 9:50 pm
STL
-
SDF
6h 15m1 stop
$260Southwest
Mon, Feb 9 - Wed, Feb 11
Southwest Logo
6:55 am - 12:30 pm
SDF
-
STL
6h 35m1 stop
Southwest Logo
1:15 pm - 10:45 pm
STL
-
SDF
8h 30m2 stops
$265Southwest
Mon, Feb 9 - Wed, Feb 11
Southwest Logo
12:50 pm - 8:00 pm
SDF
-
STL
8h 10m2 stops
Southwest Logo
1:15 pm - 10:45 pm
STL
-
SDF
8h 30m2 stops
$271Southwest
Wed, Mar 18 - Mon, Mar 23
American Airlines Logo
7:00 am - 12:43 pm
SDF
-
STL
6h 43m1 stop
American Airlines Logo
6:00 am - 5:12 pm
STL
-
SDF
10h 12m1 stop
$274American Airlines
Sun, Mar 1 - Wed, Mar 4
Delta Logo
6:23 am - 10:43 am
SDF
-
STL
5h 20m1 stop
Delta Logo
7:10 am - 2:34 pm
STL
-
SDF
6h 24m1 stop
$275Delta
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 United Airlines ($235) and American Airlines ($246).

Which airlines fly non-stop between Louisville and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Louisville to St. Louis.

There is just one airline that flies from Louisville to St. Louis direct and that is Delta. The best round-trip deal found from Delta for the route is $204.

Find deals

Good to know

Cheapest flight$129
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 $183 for a one-way ticket and $215 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 8025 reviews
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

2.0 MediocreWilliam, Jan 2026
LGA - BOS
Read more Delta reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

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)