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$120+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SDF
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Louisville Intl are usually found in August or March, booked 34 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

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 April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$237
(American Airlines)

One-way from

$120
(Cheapflightsfares)

Popular in

April

Cheapest in

August

Average price

$629

Good round-trip deal

$406 or less

Good one-way deal

$173 or less
Provider with most accurate pricing for Denver Intl-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Louisville Intl flights.
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From Denver Intl to Louisville Intl
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One-way flight from Denver Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Denver Intl to Louisville Intl.
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Price to beat on a one-way flight from Denver Intl to Louisville Intl.
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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 April 15, 2025.

This American Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 5/1312:19 pmDEN - SDF
1 stop8h 42mAmerican Airlines
Wed 5/145:45 amSDF - DEN
1 stop10h 34mAmerican Airlines
Deal found 4/14$237
This Sun Country Air deal was found by Cheapflights users on 4/14. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/178:36 pmDEN - SDF
1 stop14h 30mSun Country Air
Mon 7/212:10 pmSDF - DEN
1 stop5h 09mSun Country Air
Deal found 4/14$265
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 5/135:36 pmDEN - SDF
Nonstop2h 36mUnited Airlines
Wed 5/143:25 pmSDF - DEN
Nonstop3h 07mUnited Airlines
Deal found 4/14$307
This Southwest deal was found by Cheapflights users on 4/14. 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.
Wed 7/25:25 pmDEN - SDF
Nonstop2h 30mSouthwest
Wed 7/95:40 amSDF - DEN
Nonstop2h 50mSouthwest
Deal found 4/14$327
This Mytrip deal was found by Cheapflights users on 4/14. 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.
Thu 5/296:30 pmDEN - SDF
1 stop21h 19mMultiple Airlines
Thu 6/53:14 pmSDF - DEN
2 stops26h 49mMultiple Airlines
Deal found 4/14$354
This Delta deal was found by Cheapflights users on 4/13. 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.
Thu 5/1512:55 amDEN - SDF
1 stop7h 13mDelta
Wed 6/117:44 pmSDF - DEN
1 stop5h 38mDelta
Deal found 4/13$367
This Mytrip deal was found by Cheapflights users on 4/14. 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.
Sun 6/225:44 pmDEN - SDF
2 stops19h 19mAllegiant Air
Sun 6/2911:34 amSDF - DEN
2 stops31h 32mAllegiant Air
Deal found 4/14$487

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 April 15, 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

Tue 5/13

12:19 pm-11:01 pm

1 stop8h 42m

Louisville Intl

Wed 5/14

5:45 am-2:19 pm

1 stop10h 34m

$237

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Tue 5/13

5:36 pm-10:12 pm

Nonstop2h 36m

Louisville Intl

Wed 5/14

3:25 pm-4:32 pm

Nonstop3h 07m

$307

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Sun 6/8

10:21 am-11:31 am

1 stop23h 10m

Louisville Intl

Fri 6/13

11:46 am-9:31 am

1 stop23h 45m

$315

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Wed 7/2

5:25 pm-9:55 pm

Nonstop2h 30m

Louisville Intl

Wed 7/9

5:40 am-6:30 am

Nonstop2h 50m

$327

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 5/29

6:30 pm-5:49 pm

1 stop21h 19m

Louisville Intl

Thu 6/5

3:14 pm-4:03 pm

2 stops26h 49m

$354

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 5/15

12:55 am-10:08 am

1 stop7h 13m

Louisville Intl

Wed 6/11

7:44 pm-11:22 pm

1 stop5h 38m

$367

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Sun 6/22

5:44 pm-3:03 pm

2 stops19h 19m

Louisville Intl

Sun 6/29

11:34 am-5:06 pm

2 stops31h 32m

$487

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Thu 6/12

7:12 pm-10:45 am

1 stop13h 33m

$120

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Wed 5/14

12:19 pm-11:01 pm

1 stop8h 42m

$124

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

Wed 5/14

5:36 pm-10:12 pm

Nonstop2h 36m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 14 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Louisville flight deals on Cheapflights vs. FlightHub >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 April 11, 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 34 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, January is the cheapest month in which you can book a flight from Denver to Louisville (average of $299). Flying from Denver to Louisville in April is currently the most expensive (average of $369). 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 April 15, 2025.

It’s optimal to fly from Denver to Louisville in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Denver to Louisville

Explore weekly flight availability from Denver to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 15, 2025.

The most flights from DEN to SDF are scheduled on a Monday (3 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 15, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Denver to Louisville to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,279 reviews

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,279 reviews
Southwest
8.0
Very good
4,279 reviews

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,918 reviews
Southwest
8.0
Very good
4,279 reviews

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,658 reviews
Southwest
8.0
Very good
4,279 reviews

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Allegiant Air
7.3
Good
734 reviews
Southwest
8.0
Very good
4,279 reviews

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,279 reviews

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 30m 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 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Cheapflights users have booked flights from Denver to Louisville round-trip from $237. Other airlines that can offer you cheap pricing are United Airlines, from $307, and Sun Country Air, from $315. American Airlines is currently priced 47% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Denver to Louisville one-way?

    For one-way options, check prices for Sun Country Air. According to our data, you can fly for as low as $120. Users have also found prices from $124 and $154 on American Airlines and United Airlines, respectively.

  • What are the cheapest flights from Denver to Louisville?

    The cheapest flight price from Denver to Louisville is $167. On average you can expect to pay $353. The most popular route, (Denver Intl - Louisville Intl), can usually be booked for $307.

  • 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, January is the cheapest month in which you can book a flight from Denver to Louisville (average of $299). Flying from Denver to Louisville in April is currently the most expensive (average of $369). 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 Denver?

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

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Alternative routes for Denver to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$376FlexibilityNo cancel feeOn-time71%
DeltaCheapest$294Average$376FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$307Average$459FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$308Average$435FlexibilityNo cancel feeOn-time63%

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