SDF - STL

$168 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 6/8. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$288
Southwest
Sat 4/18Mon 4/20
SDF - STL • 1 stop
Cheapest one-way
$168
Typical prices: $373-$469
Multiple Airlines
Mon 6/8
SDF - STL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Louisville and St. Louis. You'll need at least 1 connection.
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Top layover airports
Detroit (DTW)
Cheapest • Avg $257 (round-trip)
Chicago (ORD)
Shortest trip • 4h 25m (one-way)
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sat, Apr 18 - Mon, Apr 20
Southwest Logo
6:40 am - 8:25 am
SDF
-
STL
2h 45m
1 stop
Southwest Logo
5:00 am - 12:35 pm
STL
-
SDF
6h 35m
1 stop
$288Southwest
Thu, Apr 30 - Sat, May 2
Delta Logo
7:56 am - 1:05 pm
SDF
-
STL
6h 09m
1 stop
Delta Logo
10:50 am - 5:22 pm
STL
-
SDF
5h 32m
1 stop
$293Delta
Sat, Apr 18 - Mon, Apr 20
Southwest Logo
6:40 am - 8:25 am
SDF
-
STL
2h 45m
1 stop
Southwest Logo
1:45 pm - 11:45 pm
STL
-
SDF
9h 00m
2 stops
$294Southwest
Thu, Apr 30 - Sat, May 2
Southwest Logo
8:10 pm - 10:45 pm
SDF
-
STL
3h 35m
1 stop
Southwest Logo
8:45 am - 4:15 pm
STL
-
SDF
6h 30m
2 stops
$298Southwest
Sat, Apr 18 - Mon, Apr 20
Southwest Logo
11:45 am - 7:45 pm
SDF
-
STL
9h 00m
2 stops
Southwest Logo
1:45 pm - 11:45 pm
STL
-
SDF
9h 00m
2 stops
$303Southwest
Wed, May 27 - Mon, Jun 1
American Airlines Logo
2:46 pm - 8:30 pm
SDF
-
STL
6h 44m
1 stop
American Airlines Logo
6:12 pm - 12:28 am
STL
-
SDF
5h 16m
1 stop
$317American Airlines
Sat, Apr 25 - Sun, Apr 26
Southwest Logo
6:40 am - 8:25 am
SDF
-
STL
2h 45m
1 stop
Southwest Logo
5:35 pm - 10:30 pm
STL
-
SDF
3h 55m
1 stop
$330Southwest
Fri, Apr 24 - Sat, Apr 25
American Airlines Logo
7:01 pm - 11:46 pm
SDF
-
STL
5h 45m
1 stop
American Airlines Logo
2:12 pm - 9:28 pm
STL
-
SDF
6h 16m
1 stop
$335American Airlines
Sat, Apr 25 - Sun, Apr 26
Southwest Logo
6:40 am - 2:20 pm
SDF
-
STL
8h 40m
2 stops
Southwest Logo
5:35 pm - 10:30 pm
STL
-
SDF
3h 55m
1 stop
$340Southwest
Thu, Apr 16 - Thu, Apr 16
Southwest Logo
5:45 am - 10:50 am
SDF
-
STL
6h 05m
1 stop
Southwest Logo
1:45 pm - 9:00 pm
STL
-
SDF
6h 15m
1 stop
$341Southwest
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 Southwest ($288) and Delta ($293).

Find deals

Good to know

Low seasonAugust
Cheapest flight$168
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 10% increase in price.
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 $168 for a one-way ticket and $288 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.

  • 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.

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)