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$86+ Cheap flights from Denver to Louisville (DEN - SDF)

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SDF
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Denver Intl to Louisville Intl are usually found in August or March, booked 70 days in advance, depart on a Saturday or Friday and return on a Tuesday

Find flight deals from Denver to Louisville

Cheapest flights from Denver to Louisville
Explore the most affordable flight options available from Denver to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:42 pmDEN - SDF
2 stops23h 54mMultiple Airlines
Mon 12/84:26 pmSDF - DEN
1 stop18h 44mMultiple Airlines
Deal found 10/26$230
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:00 amDEN - SDF
2 stops25h 31mMultiple Airlines
Mon 12/159:43 amSDF - DEN
1 stop26h 29mMultiple Airlines
Deal found 10/28$268
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 12/812:30 pmDEN - SDF
1 stop8h 26mAmerican Airlines
Wed 12/1010:20 amSDF - DEN
1 stop14h 00mAmerican Airlines
Deal found 10/27$283
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:59 amDEN - SDF
2 stops15h 17mMultiple Airlines
Mon 11/179:43 amSDF - DEN
1 stop28h 02mMultiple Airlines
Deal found 10/27$294
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1012:59 amDEN - SDF
2 stops31h 32mMultiple Airlines
Sun 12/142:55 pmSDF - DEN
1 stop7h 45mMultiple Airlines
Deal found 10/27$297
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/61:42 pmDEN - SDF
2 stops17h 22mMultiple Airlines
Mon 11/179:33 pmSDF - DEN
1 stop21h 10mMultiple Airlines
Deal found 10/27$305
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 12/312:33 pmDEN - SDF
1 stop8h 23mAmerican Airlines
Sat 12/66:30 amSDF - DEN
1 stop12h 19mAmerican Airlines
Deal found 10/25$322
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:45 pmDEN - SDF
2 stops25h 31mMultiple Airlines
Mon 11/179:43 amSDF - DEN
1 stop28h 02mMultiple Airlines
Deal found 10/27$328

Cheap flight deals from Denver to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Louisville (SDF). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$230
(Kiwi.com)

One-way from

$86
(Kiwi.com)

Popular in

April

Cheapest in

August

Average price

$419

Good round-trip deal

$403 or less

Good one-way deal

$269 or less
Provider with most accurate pricing for Denver Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Louisville Intl flights.
Search Deals
From Denver Intl to Louisville Intl
Search Deals
One-way flight from Denver Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Denver Intl to Louisville Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Louisville 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 October 28, 2025.
Use the filters below to find and compare flights from Denver to Louisville that are best for you.

Fly from

Denver

Fly to

Louisville

Route

Depart

Return

Price

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 12/4

5:05 pm-9:30 pm

Nonstop2h 25m

Louisville Intl

Mon 12/8

5:10 pm-10:30 pm

1 stop7h 20m

$365

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 12/18

5:45 am-2:11 pm

1 stop6h 26m

Louisville Intl

Thu 12/25

6:40 am-10:29 am

1 stop5h 49m

$375

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Wed 12/3

9:50 am-2:30 pm

Nonstop2h 40m

Louisville Intl

Sat 12/6

7:00 am-12:25 pm

1 stop7h 25m

$375

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 12/4

1:25 pm-10:29 pm

1 stop7h 04m

Louisville Intl

Sat 12/6

3:33 pm-4:43 pm

Nonstop3h 10m

$375

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Wed 12/3

4:45 pm-11:05 pm

1 stop4h 20m

Louisville Intl

Sat 12/6

10:35 am-4:25 pm

2 stops7h 50m

$390

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 12/4

6:05 am-4:35 pm

2 stops8h 30m

Louisville Intl

Sat 12/6

1:10 pm-5:55 pm

1 stop6h 45m

$390

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Fri 1/16

1:15 pm-10:25 pm

1 stop7h 10m

Louisville Intl

Mon 1/19

1:30 pm-2:30 pm

Nonstop3h 00m

$393

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Fri 12/19

6:15 am-1:49 pm

1 stop5h 34m

Louisville Intl

Thu 12/25

6:40 am-10:29 am

1 stop5h 49m

$421

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 11/20

9:40 am-2:19 pm

Nonstop2h 39m

Louisville Intl

Thu 11/27

7:00 am-2:46 pm

1 stop9h 46m

$442

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Sun 11/23

5:51 pm-10:30 pm

Nonstop2h 39m

Louisville Intl

Thu 11/27

7:00 am-2:46 pm

1 stop9h 46m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 16 results
1
2

Compare providers for flights from Denver to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Louisville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Louisville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Louisville

How far ahead should I book a flight from Denver to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Louisville. Price data was last updated on October 24, 2025.

The price you pay for your flight from Denver to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Denver to Louisville?

Currently, February is the cheapest month in which you can book a flight from Denver to Louisville (average of $54). Flying from Denver to Louisville in April is currently the most expensive (average of $120). 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 DEN to SDF?

Find hourly flight availability from Denver to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s optimal to fly from Denver to Louisville in the evening. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated October 28, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Denver to Louisville. 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.
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,001 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Denver to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Denver to Louisville?

    Louisville Intl is the airport most travelers will use when flying to Louisville from Denver Intl. Booking flights from Denver Intl (DEN) to Louisville Intl (SDF) should be relatively easy as there are 2 daily flights to Louisville from 4 different airlines. 2h 25m is how long a flight from Denver to Louisville Intl will take if you book a nonstop flight.

  • How popular is this Denver to Louisville flight route?

    The Denver Intl to Louisville Intl flight path was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Denver to Louisville?

    Departing from Denver to Louisville will take you 2h 25m. Airlines will cover a distance of 1021 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Denver to Louisville round-trip?

    Cheapflights users have booked flights from Denver to Louisville round-trip from $231. Other airlines that can offer you cheap pricing are Delta, from $248, and United Airlines, from $275. American Airlines is currently priced 50% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Denver to Louisville?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to Louisville on time: Southwest (70%), United Airlines (66%), Air Canada (65%).

  • What are the cheapest flights from Denver to Louisville?

    The cheapest flight price from Denver to Louisville is $177. On average you can expect to pay $445. The most popular route, (Denver Intl - Louisville Intl), can usually be booked for $189.

  • Can I find deals for flights from Denver to Louisville that include hotel bookings?

    Yes. In addition to deals on Denver to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Louisville.

  • Can I find deals for business class flights from Denver to Louisville?

    Yes. Cheapflights offers flight deals from Denver to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Louisville?

    Currently, February is the cheapest month in which you can book a flight from Denver to Louisville (average of $54). Flying from Denver to Louisville in April is currently the most expensive (average of $120). 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.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 4 airlines flying from Denver to Louisville

Discover the top 4 airlines that operate flights from Denver to Louisville. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$231Average$398FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$403FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$492FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$297Average$443FlexibilityNo cancel feeOn-time63%

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