$99+ Cheap flights from Louisville to St. Louis (SDF - STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Louisville to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Louisville to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $185 (American Airlines) |
|---|---|
One-way from | $99 (Delta) |
Popular in | May |
Cheapest in | August |
Average price | $253 |
Find flight deals from Louisville to St. Louis
Cheapest flights from Louisville to St. LouisExplore the most affordable flight options available from Louisville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Louisville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Louisville to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Thu 8/7
6:44 am-8:18 pm
1 stop14h 34m
Lambert-St Louis
Mon 8/11
6:00 am-11:13 pm
1 stop16h 13m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Thu 8/7
6:00 am-9:41 am
1 stop4h 41m
Lambert-St Louis
Mon 8/11
3:40 pm-9:14 pm
1 stop4h 34m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Fri 7/11
8:13 pm-2:39 pm
1 stop19h 26m
Lambert-St Louis
Sun 7/20
10:47 am-1:55 pm
1 stop26h 08m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Fri 9/12
1:15 pm-3:45 pm
1 stop3h 30m
Lambert-St Louis
Sun 9/14
5:40 pm-1:45 am
1 stop7h 05m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Fri 7/25
2:50 pm-2:39 pm
2 stops24h 49m
Lambert-St Louis
Fri 8/1
10:47 am-2:46 pm
2 stops26h 59m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Sat 7/26
8:40 am-12:46 pm
1 stop5h 06m
Lambert-St Louis
Sat 8/2
5:30 pm-10:14 pm
1 stop3h 44m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Wed 8/6
12:50 pm-4:18 pm
1 stop4h 28m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Wed 8/6
1:15 pm-8:00 pm
2 stops7h 45m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Mon 6/30
6:04 pm-11:50 pm
2 stops6h 46m
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Sat 6/28
1:35 pm-5:04 pm
2 stops28h 29m
Best time to book a flight from Louisville to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Louisville with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Louisville to St. Louis
What is the cheapest month to book a flight from Louisville to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Louisville to St. Louis (average of $311). Flying from Louisville to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SDF to STL?
Find hourly flight availability from Louisville to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
One of the essential ways to save on airfare from Louisville to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.
Rainfall in St. Louis by month
Plan your trip to St. Louis by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.
Temperature in St. Louis by month
Plan your trip to St. Louis by taking into account the average temperature totals by month.
If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Louisville to St. Louis to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
John,May 2025
PVD - BNA
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
John,May 2025
PVD - BNA
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
John,May 2025
PVD - BNA
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
John,May 2025
PVD - BNA
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
John,May 2025
PVD - BNA
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
John,May 2025
PVD - BNA
Related info for your journey
Find useful and relevant information for your journey from Louisville to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Louisville to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Louisville to St. Louis
Discover the top airline that operate flights from Louisville to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$226 | Average$354 | FlexibilityNo cancel fee | On-timeN/A |