STL - SDF

$198 Find Cheap Flights from St. Louis to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Louisville departing on 5/8. 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 Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Louisville, 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 St. Louis to Louisville, 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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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
$275
Southwest
mer 5/20mer 5/27
STL - SDF • 1 stop
Cheapest one-way
$192
Multiple Airlines
ven 5/8
STL - SDF • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Louisville. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Nashville (BNA)
Cheapest • Avg $354 (round-trip)
Nashville (BNA)
Shortest trip • 3h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 100% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Louisville 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 St. Louis to Louisville

mer, mag 20 - mer, mag 27
Southwest Logo
10:25 am - 3:05 pm
STL
-
SDF
3h 40m
1 stop
Southwest Logo
5:50 pm - 10:35 pm
SDF
-
STL
5h 45m
1 stop
$275Southwest
mer, mag 20 - mer, mag 27
Southwest Logo
10:25 am - 3:05 pm
STL
-
SDF
3h 40m
1 stop
Southwest Logo
4:40 pm - 10:10 pm
SDF
-
STL
6h 30m
2 stops
$280Southwest
mar, mag 26 - mer, mag 27
Southwest Logo
2:30 pm - 9:05 pm
STL
-
SDF
5h 35m
1 stop
Southwest Logo
6:20 am - 12:50 pm
SDF
-
STL
7h 30m
2 stops
$298Southwest
sab, mag 23 - lun, mag 25
United Airlines Logo
7:05 pm - 11:49 pm
STL
-
SDF
3h 44m
1 stop
United Airlines Logo
9:00 am - 2:23 pm
SDF
-
STL
6h 23m
1 stop
$311United Airlines
mar, mag 26 - mer, mag 27
Southwest Logo
5:45 am - 2:45 pm
STL
-
SDF
8h 00m
2 stops
Southwest Logo
7:00 am - 1:00 pm
SDF
-
STL
7h 00m
2 stops
$317Southwest
mer, giu 3 - dom, giu 7
American Airlines Logo
6:12 pm - 12:28 am
STL
-
SDF
5h 16m
1 stop
American Airlines Logo
8:08 pm - 11:44 pm
SDF
-
STL
4h 36m
1 stop
$335American Airlines
mer, mag 20 - mer, mag 27
Southwest Logo
2:10 pm - 10:15 pm
STL
-
SDF
7h 05m
2 stops
Southwest Logo
12:10 pm - 8:00 pm
SDF
-
STL
8h 50m
2 stops
$338Southwest
mar, giu 2 - mer, giu 3
United Airlines Logo
5:41 pm - 10:30 pm
STL
-
SDF
3h 49m
1 stop
United Airlines Logo
7:10 am - 12:11 pm
SDF
-
STL
6h 01m
1 stop
$345United Airlines
mer, giu 24 - dom, giu 28
American Airlines Logo
6:13 pm - 12:28 am
STL
-
SDF
5h 15m
1 stop
American Airlines Logo
7:18 pm - 12:16 am
SDF
-
STL
5h 58m
1 stop
$348American Airlines
sab, mag 23 - lun, mag 25
Southwest Logo
2:05 pm - 8:50 pm
STL
-
SDF
5h 45m
2 stops
Southwest Logo
5:45 am - 10:50 am
SDF
-
STL
6h 05m
1 stop
$351Southwest
Booking Insights

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

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

What is the cheapest month to fly from St. Louis to Louisville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Louisville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Louisville is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $590 and $590 respectively.

Find deals

Good to know

Low seasonMay
Cheapest flight$192
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from St. Louis to Louisville

When to book flights from St. Louis to Louisville

Are your dates flexible? Find out the best times to travel from St. Louis to Louisville 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 St. Louis to Louisville

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

    In the last 3 days, the lowest price for a flight from St. Louis to Louisville was $192 for a one-way ticket and $275 for a round-trip.

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

    No

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

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

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

    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 St. Louis to Louisville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from St. Louis 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 St. Louis to Louisville?

    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 Louisville with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SDF 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 St. Louis to Louisville?

    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 Louisville from St. Louis 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 St. Louis to Louisville

Information on your arrival and departure airports

St. Louis (STL)
Louisville (SDF)