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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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SDF
mag 6 — mag 131
mar 5/6
mar 5/13
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 maggio 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$367
(Southwest)

One-way from

$120
(Cheapflightsfares)

Popular in

April

Cheapest in

August

Average price

$451

Good round-trip deal

$372 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. 8% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
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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.
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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 maggio 1, 2025.

This Southwest deal was found by Cheapflights users on 4/30. 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.
gio 6/199:10 pmDEN - SDF
Nonstop2h 35mSouthwest
mer 6/257:10 amSDF - DEN
1 stop7h 05mSouthwest
Deal found 4/30$367
This United Airlines deal was found by Cheapflights users on 4/30. 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.
gio 5/225:40 pmDEN - SDF
Nonstop2h 47mUnited Airlines
mar 5/273:29 pmSDF - DEN
Nonstop2h 59mUnited Airlines
Deal found 4/30$368
This Mytrip deal was found by Cheapflights users on 4/30. 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.
gio 6/125:41 pmDEN - SDF
2 stops19h 06mMultiple Airlines
mar 6/175:03 amSDF - DEN
2 stops28h 33mMultiple Airlines
Deal found 4/30$370
This American Airlines deal was found by Cheapflights users on 4/30. 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.
sab 6/217:21 amDEN - SDF
1 stop8h 50mAmerican Airlines
mar 6/246:12 pmSDF - DEN
1 stop6h 06mAmerican Airlines
Deal found 4/30$371
This Mytrip deal was found by Cheapflights users on 4/30. 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.
mer 5/281:10 pmDEN - SDF
2 stops25h 46mAllegiant Air
mer 6/49:34 amSDF - DEN
2 stops33h 17mAllegiant Air
Deal found 4/30$403
This Delta deal was found by Cheapflights users on 4/30. 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.
gio 5/2212:55 amDEN - SDF
1 stop7h 13mDelta
dom 5/257:05 amSDF - DEN
1 stop5h 56mDelta
Deal found 4/30$413

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 maggio 1, 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

gio 6/19

9:10 pm-1:45 am

Nonstop2h 35m

Louisville Intl

mer 6/25

11:15 am-3:45 pm

1 stop6h 30m

$367

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

gio 5/22

5:40 pm-10:27 pm

Nonstop2h 47m

Louisville Intl

mar 5/27

3:29 pm-4:28 pm

Nonstop2h 59m

$368

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

gio 6/12

5:41 pm-2:47 pm

2 stops19h 06m

Louisville Intl

mar 6/17

5:03 am-7:36 am

2 stops28h 33m

$370

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

sab 6/21

7:21 am-6:11 pm

1 stop8h 50m

Louisville Intl

mar 6/24

6:12 pm-10:18 pm

1 stop6h 06m

$371

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

mer 5/28

1:10 pm-4:56 pm

2 stops25h 46m

Louisville Intl

mer 6/4

9:34 am-4:51 pm

2 stops33h 17m

$403

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

gio 5/22

12:55 am-10:08 am

1 stop7h 13m

Louisville Intl

dom 5/25

7:05 am-11:01 am

1 stop5h 56m

$413

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

ven 7/4

10:15 am-5:49 pm

1 stop5h 34m

$120

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

gio 6/26

9:39 pm-9:07 am

1 stop9h 28m

$124

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

mer 5/28

5:40 pm-10:27 pm

Nonstop2h 47m

$154

DenverLouisville

DEN - SDF

DENSDF

Denver Intl

gio 6/5

5:41 pm-7:29 pm

2 stops23h 48m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 results
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 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 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 25, 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 maggio 1, 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.

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 maggio 1, 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
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Allegiant Air
7.3
Good
734 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 $367. Other airlines that can offer you cheap pricing are United Airlines, from $368, and American Airlines, from $371. Southwest is currently priced 19% 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 $154 and $160 on United Airlines and Allegiant Air, respectively.

  • What are the cheapest flights from Denver to Louisville?

    The cheapest flight price from Denver to Louisville is $173. On average you can expect to pay $363. The most popular route, (Denver Intl - Louisville Intl), can usually be booked for $275.

  • 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

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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 maggio 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$374FlexibilityNo cancel feeOn-time71%
DeltaCheapest$294Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$311Average$463FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$429FlexibilityNo cancel feeOn-time63%

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