Denver

$80+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DEN
Feb 7 — Feb 141
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Find cheap flights from Louisville to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Louisville Intl to Denver Intl are usually found in April or August, booked 68 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$202
(Kiwi.com)

One-way from

$80
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$415

Good round-trip deal

$404 or less

Good one-way deal

$218 or less
Provider with most accurate pricing for Louisville Intl-Denver Intl flight deals.
Provider most trusted by Cheapflights users for Louisville Intl-Denver Intl flights.
From Louisville Intl to Denver Intl
One-way flight from Louisville Intl to Denver Intl
Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Louisville Intl to Denver Intl.
Price to beat on a one-way flight from Louisville Intl to Denver Intl.

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 January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Mon 1/266:54 pmSDF - DEN
2 stops19h 25mMultiple Airlines
Thu 1/296:32 pmDEN - SDF
1 stop16h 28mMultiple Airlines
Deal found 1/6$202
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 1/273:36 pmSDF - DEN
2 stops22h 43mMultiple Airlines
Thu 1/296:32 pmDEN - SDF
1 stop16h 28mMultiple Airlines
Deal found 1/6$210
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Mon 2/169:30 amSDF - DEN
2 stops48h 56mMultiple Airlines
Tue 2/2411:59 pmDEN - SDF
1 stop10h 22mMultiple Airlines
Deal found 1/7$215
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 2/181:19 pmSDF - DEN
2 stops20h 20mMultiple Airlines
Tue 2/2411:59 pmDEN - SDF
1 stop10h 22mMultiple Airlines
Deal found 1/7$216
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 2/173:33 pmSDF - DEN
2 stops17h 29mMultiple Airlines
Tue 2/2411:59 pmDEN - SDF
1 stop10h 22mMultiple Airlines
Deal found 1/6$218
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 2/193:33 pmSDF - DEN
2 stops31h 01mMultiple Airlines
Tue 2/2411:59 pmDEN - SDF
1 stop10h 22mMultiple Airlines
Deal found 1/7$221
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 3/41:19 pmSDF - DEN
1 stop20h 36mMultiple Airlines
Mon 3/911:59 pmDEN - SDF
2 stops12h 39mMultiple Airlines
Deal found 1/7$225
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 1/203:36 pmSDF - DEN
2 stops28h 17mMultiple Airlines
Thu 1/296:32 pmDEN - SDF
1 stop16h 28mMultiple Airlines
Deal found 1/6$231
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Fri 2/201:19 pmSDF - DEN
2 stops28h 59mMultiple Airlines
Tue 2/2411:59 pmDEN - SDF
1 stop10h 22mMultiple Airlines
Deal found 1/7$233
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Mon 2/26:54 pmSDF - DEN
2 stops43h 09mMultiple Airlines
Thu 3/56:00 amDEN - SDF
1 stop12h 16mMultiple Airlines
Deal found 1/8$234
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Sun 1/253:36 pmSDF - DEN
2 stops32h 09mMultiple Airlines
Thu 1/296:32 pmDEN - SDF
1 stop16h 28mMultiple Airlines
Deal found 1/6$237

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 January 8, 2026.
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 3/16

7:08 am-5:17 pm

1 stop12h 09m

Denver Intl

Thu 3/19

7:00 am-5:12 pm

1 stop8h 12m

$275

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 3/25

8:54 am-10:11 am

Nonstop3h 17m

Denver Intl

Tue 3/31

5:58 pm-10:39 pm

Nonstop2h 41m

$323

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 2/9

3:22 pm-4:37 pm

Nonstop3h 15m

Denver Intl

Thu 2/12

6:00 pm-10:37 pm

Nonstop2h 37m

$323

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 2/18

9:00 am-10:17 am

Nonstop3h 17m

Denver Intl

Tue 2/24

9:40 am-2:19 pm

Nonstop2h 39m

$323

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 2/18

6:45 am-11:50 am

1 stop7h 05m

Denver Intl

Tue 2/24

4:45 pm-9:10 pm

Nonstop2h 25m

$332

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 2/25

5:35 am-10:33 am

1 stop6h 58m

Denver Intl

Mon 3/2

6:00 pm-10:37 pm

Nonstop2h 37m

$333

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 3/5

7:51 pm-12:23 am

1 stop6h 32m

Denver Intl

Tue 3/24

7:05 am-2:00 pm

1 stop4h 55m

$342

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 3/25

6:35 am-11:20 am

2 stops6h 45m

Denver Intl

Tue 3/31

6:25 am-3:10 pm

1 stop6h 45m

$347

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 3/26

6:15 pm-11:20 pm

2 stops7h 05m

Denver Intl

Mon 3/30

11:55 pm-11:10 am

1 stop9h 15m

$348

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 2/17

9:00 am-10:17 am

Nonstop3h 17m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 21 results
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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 January.
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 Louisville-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Denver flight deals on Cheapflights vs. eDreams >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 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 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 January 2, 2026.

Booking 68 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, November is the cheapest month in which you can book a flight from Louisville to Denver (average of $69). Flying from Louisville to Denver in December is currently the most expensive (average of $111). 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 January 8, 2026.

A simple way to save on the total cost of your ticket is to fly from Louisville to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight at noon.

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 January 8, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Louisville to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 4 airlines when you book a flight from Louisville Intl to Denver.

  • How popular is this Louisville to Denver flight route?

  • How long is the flight from Louisville to Denver?

    Airlines like American Airlines, United Airlines, and Southwest fly from Louisville to Denver in about 3h 17m. The time it takes to get you to your destination can typically vary by up to 8h 52m. The distance from Louisville to Denver is about 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 Louisville to Denver round-trip?

    Cheapflights users have booked flights from Louisville to Denver round-trip from $175. Other airlines that can offer you cheap pricing are Delta, from $211, and United Airlines, from $245. American Airlines is priced at 58% lower than the current average price of a flight leaving 3 months from now.

  • 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 (79%), United Airlines (78%) or Southwest (74%) 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 $1,081, our data indicates the cheapest price to be $159. The most popular route (Louisville Intl - Denver Intl), is priced around $216.

  • 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, November is the cheapest month in which you can book a flight from Louisville to Denver (average of $69). Flying from Louisville to Denver in December is currently the most expensive (average of $111). 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
Thornton
Black Hawk
Broomfield
Westminster
Lakewood
Golden
Greeley
Lone Tree
Wheat Ridge
Cripple Creek
Winter Park
Silverthorne
Central City
Frisco
Manitou Springs
Fort Morgan
Brighton
Longmont
Evergreen
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisville to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Louisville to Denver

Discover the top 4 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$175Average$345FlexibilityNo cancel feeOn-time71%
DeltaCheapest$211Average$370FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$247Average$427FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$267Average$416FlexibilityNo cancel feeOn-time63%

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