Louisville to Denver flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Louisville to Denver is €98 with Allegiant Air (checked on 6 Nov 2026).
Your next trip, last seen at €98
Lowest observedAllegiant Air · 2 stops · One wayWhen to fly
Explore datesMore dates worth a look
Last seen for 1 traveller on 6 Nov 2026. Check today's price.
Find the dates that work for you
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.
One-way fare
- 1 Jan€197
- 3 Jan€189
- 4 Jan€168
- 6 Jan€196
- 7 Jan€122
- 8 Jan€157
- 10 Jan€144
- 11 Jan€98
- 13 Jan€171
- 14 Jan€169
- 15 Jan€185
- 17 Jan€173
- 18 Jan€155
- 20 Jan€152
- 21 Jan€119
- 22 Jan€174
- 24 Jan€139
- 25 Jan€151
- 27 Jan€154
- 28 Jan€122
- 29 Jan€193
- 31 Jan€122
- Lowest observed
- €98, departing 11 Jan 2027 (Last checked: 6 Nov 2026)One-way fare · Priced departure days checked in the last 14 days: 69Check live prices for this route
- Airlines seen
- Frontier Airlines, United Airlines, Allegiant Air, American Airlines, Breeze Airways, Delta Air Lines, Southwest Airlines (7)
- Fastest observed flight time
- 3h 04m
- Non-stop
- Yes
About this route
Explore the fares we observed from Louisville to Denver. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,666 km
- Fastest observed flight time
- 3h 04m
- Airlines seen
- Frontier Airlines, United Airlines, Allegiant Air, American Airlines, Breeze Airways, Delta Air Lines, Southwest Airlines (7)
- Alternative airports
- APA
Route-level information; individual journeys vary.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Louisville Muhammad Ali International Airport (SDF) → Louisville, city gazetteer reference point (38.2527, -85.7585): ≈ 9 km.
- Denver International Airport (DEN) → Denver, city gazetteer reference point (39.7392, -104.9847): ≈ 30 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 departure day we saw in January 2027 from Louisville to Denver: 11 Jan 2027, €98 (checked 6 Nov 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| December 2026 | €131 | 19 |
| January 2027 | €98 | 22 |
| February 2027 | €112 | 18 |
| March 2027 | €140 | 9 |
Lowest fare by day of the week
Cheapest Monday departure we saw from Louisville to Denver: 11 Jan 2027, €98 (checked 6 Nov 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €98 | 15 |
| Tuesday | €148 | 3 |
| Wednesday | €134 | 13 |
| Thursday | €112 | 12 |
| Friday | €131 | 12 |
| Sunday | €112 | 12 |
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 Denver by days until departure (61 days or more): €98 (checked 6 Nov 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 8 to 30 days | €131 | 9 |
| 31 to 60 days | €122 | 17 |
| 61 days or more | €98 | 43 |
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.
Lowest one-way fare we saw per airline
Cheapest airline from Louisville to Denver: Allegiant Air, €98 (checked 6 Nov 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Allegiant Air | €98Jan 11, 2027 | 14 |
| Breeze Airways | €112Feb 4, 2027 | 55 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Louisville to Denver?
The lowest fare Routavio has observed is €98, found on 6 Nov 2026.
Are there direct flights from Louisville to Denver?
Yes. Published schedules report non-stop flights on this route with Frontier Airlines, United Airlines.
Which airlines fly from Louisville to Denver?
Routavio has seen these carriers on the route: Frontier Airlines, United Airlines, Allegiant Air, American Airlines, Breeze Airways, Delta Air Lines, Southwest Airlines (7).
How long does the flight from Louisville to Denver take?
Across the 114 fares Routavio observed, the average journey time is 21h 24m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Louisville to Denver fares were non-stop?
26 of the 114 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
When is the cheapest month to fly from Louisville to Denver?
Cheapest departure day we saw in January 2027 from Louisville to Denver: 11 Jan 2027, €98 (checked 6 Nov 2026).
Which day of the week is cheapest from Louisville to Denver?
Cheapest Monday departure we saw from Louisville to Denver: 11 Jan 2027, €98 (checked 6 Nov 2026).
Which airline has the lowest fare from Louisville to Denver?
Cheapest airline from Louisville to Denver: Allegiant Air, €98 (checked 6 Nov 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.