Your next trip, last seen at €103
Lowest observedBreeze Airways · 2 stops · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €103, departing 5 Dec 2026 (Last checked: 11 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 107Check live prices for this route
- Airlines seen
- Allegiant Air, Breeze Airways, Frontier Airlines, JetBlue, Southern Airways Express, United Airlines
- Typical journey time
- 4h 09m
- Non-stop
- Yes
About this route
Explore the fares we observed from Louisville to St Louis. Prices move often, so pick your dates to see the latest options.
- Route distance
- 389 km
- Typical journey time
- 4h 09m
- Airlines seen
- Allegiant Air, Breeze Airways, Frontier Airlines, JetBlue, Southern Airways Express, United Airlines
- Alternative airports
- SUS
Route-level information; individual journeys vary.
Published schedules report non-stop service with Southwest Airlines. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- Louisville Muhammad Ali International Airport (SDF) → Louisville, city gazetteer reference point (38.2527, -85.7585): ≈ 9 km.
- St. Louis Lambert International Airport (STL) → St Louis, city gazetteer reference point (38.6270, -90.1994): ≈ 20 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Louisville to St Louis: December 2026, from €103 (checked 11 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €285 | 8 |
| November 2026 | €115 | 29 |
| December 2026 | €103 | 31 |
| January 2027 | €212 | 29 |
| February 2027 | €212 | 10 |
Lowest fare by day of the week
Cheapest day of the week from Louisville to St Louis: Saturday, from €103 (checked 11 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €181 | 14 |
| Tuesday | €181 | 17 |
| Wednesday | €181 | 16 |
| Thursday | €181 | 16 |
| Friday | €181 | 15 |
| Saturday | €103 | 14 |
| Sunday | €115 | 15 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Louisville to St Louis by days until departure (31 to 60 days): €103 (checked 11 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 8 to 30 days | €115 | 18 |
| 31 to 60 days | €103 | 29 |
| 61 days or more | €212 | 58 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Louisville to St Louis?
The lowest fare we have observed is €103, found on 11 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Louisville to St Louis?
Cheapest month from Louisville to St Louis: December 2026, from €103 (checked 11 Oct 2026).
Are there direct flights from Louisville to St Louis?
Yes. We have seen non-stop flights on this route, flown by Southwest Airlines.
Which airlines fly from Louisville to St Louis?
These are the carriers we have seen on the route: Allegiant Air, Breeze Airways, Frontier Airlines, JetBlue, Southern Airways Express, United Airlines.
How long does the flight from Louisville to St Louis take?
The average journey time across the 128 fares we observed is 13h 37m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which day of the week is cheapest from Louisville to St Louis?
Cheapest day of the week from Louisville to St Louis: Saturday, from €103 (checked 11 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 11 Oct 2026