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$124+ Cheap flights from Louisville to Denver (SDF - DEN)

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DEN
Apr 15 — Apr 221
Tue 4/15
Tue 4/22
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Denver Intl are usually found in August or September, booked 55 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Louisville to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Denver (DEN). 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 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$255
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$386

Good round-trip deal

$386 or less

Good one-way deal

$220 or less
Provider with most accurate pricing for Louisville Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Denver Intl flights.
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From Louisville Intl to Denver Intl
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One-way flight from Louisville Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Louisville Intl to Denver Intl.
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Price to beat on a one-way flight from Louisville Intl to Denver Intl.
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Find flight deals from Louisville to Denver

Cheapest flights from Louisville to Denver
Explore the most affordable flight options available from Louisville to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2025.

This American Airlines deal was found by Cheapflights users on 4/9. 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 8/256:34 amSDF - DEN
1 stop8h 52mAmerican Airlines
Thu 8/287:27 amDEN - SDF
1 stop8h 57mAmerican Airlines
Deal found 4/9$255
This Sun Country Air deal was found by Cheapflights users on 4/9. 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.
Fri 6/2012:22 pmSDF - DEN
1 stop8h 23mSun Country Air
Thu 6/2610:15 amDEN - SDF
1 stop20h 52mSun Country Air
Deal found 4/9$295
This United deal was found by Cheapflights users on 4/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:00 amSDF - DEN
Nonstop3h 07mUnited Airlines
Sat 5/105:36 pmDEN - SDF
Nonstop2h 36mUnited Airlines
Deal found 4/9$307
This Southwest deal was found by Cheapflights users on 4/9. 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 6/186:30 amSDF - DEN
1 stop6h 20mSouthwest
Tue 7/15:25 pmDEN - SDF
Nonstop2h 30mSouthwest
Deal found 4/9$337
This Delta deal was found by Cheapflights users on 4/9. 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.
Mon 5/128:10 pmSDF - DEN
1 stop6h 06mDelta
Fri 5/161:47 pmDEN - SDF
1 stop6h 56mDelta
Deal found 4/9$387
This Mytrip deal was found by Cheapflights users on 4/9. 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.
Sat 6/73:35 pmSDF - DEN
2 stops19h 44mMultiple Airlines
Sat 6/145:45 pmDEN - SDF
2 stops24h 05mMultiple Airlines
Deal found 4/9$400

Cheapflights Fare Finder

Customize your flight search to find flights from Louisville to Denver 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 10, 2025.
Use the filters below to find and compare flights from Louisville to Denver that are best for you.

Fly from

Louisville

Fly to

Denver

Route

Depart

Return

Price

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 8/25

6:34 am-1:26 pm

1 stop8h 52m

Denver Intl

Thu 8/28

7:27 am-6:24 pm

1 stop8h 57m

$255

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Fri 6/20

12:22 pm-6:45 pm

1 stop8h 23m

Denver Intl

Thu 6/26

10:15 am-9:07 am

1 stop20h 52m

$295

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 5/7

8:00 am-9:07 am

Nonstop3h 07m

Denver Intl

Sat 5/10

5:36 pm-10:12 pm

Nonstop2h 36m

$307

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 6/18

6:30 am-12:15 pm

1 stop7h 45m

Denver Intl

Tue 7/1

2:45 pm-1:00 am

2 stops8h 15m

$348

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 5/12

5:55 pm-12:16 am

1 stop8h 21m

Denver Intl

Thu 5/15

12:55 am-10:08 am

1 stop7h 13m

$387

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 5/12

12:07 pm-11:30 am

3 stops25h 23m

Denver Intl

Fri 5/16

9:00 am-3:50 pm

3 stops28h 50m

$400

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 5/13

8:56 am-5:07 pm

1 stop10h 11m

$124

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Fri 6/27

10:04 am-10:01 am

1 stop25h 57m

$128

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Sat 5/24

12:04 pm-9:01 am

2 stops22h 57m

$146

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Sat 5/10

8:00 am-9:07 am

Nonstop3h 07m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 13 results
1
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Compare providers for flights from Louisville to Denver

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 Louisville to Denver in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 Louisville-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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 Louisville-Denver 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 Louisville to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Louisville 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 Louisville to Denver

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Denver. Price data was last updated on April 4, 2025.

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Louisville to Denver (average of $197). Flying from Louisville to Denver in March is currently the most expensive (average of $278). 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 SDF to DEN?

Find hourly flight availability from Louisville to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 10, 2025.

A simple way to save on the total cost of your ticket is to fly from Louisville to Denver in the afternoon. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Louisville to Denver?

Use this chart to determine the cheapest time to fly round-trip from Louisville to Denver. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Louisville to Denver flight should consider departing on Wednesday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Louisville to Denver

Explore weekly flight availability from Louisville to Denver. 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 10, 2025.

The most flights from SDF to DEN are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Denver by month

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

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

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

If weather is an important factor for your trip to Denver, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated April 10, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Louisville to Denver have to say. 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
4,278 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.6

Food

7.1

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
4,278 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.6

Food

7.1

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
7,907 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.6

Food

7.1

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
8,634 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.6

Food

7.1

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
4,278 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.6

Food

7.1

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
4,278 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.6

Food

7.1

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 Louisville to Denver. 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 Louisville to Denver?

    Booking a flight from Louisville Intl (SDF) to Denver Intl (DEN) is your only option if you wish to fly from Louisville to Denver. On a typical day, there are 3 flights from Louisville Intl to Denver Intl, all of which are around 2h 50m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from Louisville Intl to Denver.

  • How popular is this Louisville to Denver flight route?

    This flight path from Louisville Intl to Denver Intl was viewed by 46 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 Louisville to Denver round-trip?

    Cheapflights users have booked flights from Louisville to Denver round-trip from $255. Other airlines that can offer you cheap pricing are Sun Country Air, from $295, and United Airlines, from $307. American Airlines is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $124. Users have also found prices from $128 and $146 on Sun Country Air and Allegiant Air, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Louisville to Denver consider choosing Air Canada (86%), United Airlines (84%) or Southwest (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Louisville to Denver?

    Looking for the cheapest flight from Louisville to Denver? While on average our users pay $711, our data indicates the cheapest price to be $168. The most popular route (Louisville Intl - Denver Intl), is priced around $307.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Denver 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 Louisville to Denver?

    Currently, October is the cheapest month in which you can book a flight from Louisville to Denver (average of $197). Flying from Louisville to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Silverthorne
Brighton
Greeley
Frisco
Grand Lake
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Thornton
Broomfield
Idaho Springs
Limon

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Top 5 airlines flying from Louisville to Denver

Discover the top 5 airlines that operate flights from Louisville to Denver. 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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$150Average$301FlexibilityNo cancel feeOn-time83%
DeltaCheapest$196Average$372FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$225Average$380FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$411FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$275Average$437FlexibilityNo cancel feeOn-time63%

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