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$99+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DEN
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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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

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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

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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/179:33 pmSDF - DEN
1 stop14h 25mMultiple Airlines
Thu 11/207:15 amDEN - SDF
2 stops23h 33mMultiple Airlines
Deal found 10/16$241
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/32:38 pmSDF - DEN
1 stop21h 20mMultiple Airlines
Wed 11/512:59 amDEN - SDF
2 stops15h 17mMultiple Airlines
Deal found 10/14$251
This American Airlines deal was found by Cheapflights users on 10/15. 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 11/127:34 amSDF - DEN
1 stop16h 48mAmerican Airlines
Wed 11/1912:33 pmDEN - SDF
1 stop8h 22mAmerican Airlines
Deal found 10/15$255
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/32:38 pmSDF - DEN
1 stop21h 20mMultiple Airlines
Wed 11/59:09 amDEN - SDF
2 stops31h 07mMultiple Airlines
Deal found 10/16$279
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:57 pmSDF - DEN
1 stop21h 21mMultiple Airlines
Tue 11/42:45 pmDEN - SDF
2 stops49h 31mMultiple Airlines
Deal found 10/14$284
This American Airlines deal was found by Cheapflights users on 10/14. 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.
Thu 11/206:04 amSDF - DEN
1 stop12h 59mAmerican Airlines
Mon 11/2412:27 pmDEN - SDF
1 stop8h 28mAmerican Airlines
Deal found 10/14$288
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:48 pmSDF - DEN
2 stops15h 39mMultiple Airlines
Thu 12/410:30 pmDEN - SDF
1 stop19h 42mMultiple Airlines
Deal found 10/14$289
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:43 amSDF - DEN
1 stop26h 35mMultiple Airlines
Thu 11/206:00 amDEN - SDF
2 stops24h 48mMultiple Airlines
Deal found 10/14$297
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 10/302:57 pmSDF - DEN
1 stop10h 56mMultiple Airlines
Wed 11/52:45 pmDEN - SDF
2 stops25h 31mMultiple Airlines
Deal found 10/15$307
This American Airlines deal was found by Cheapflights users on 10/15. 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.
Thu 11/63:38 pmSDF - DEN
1 stop6h 48mAmerican Airlines
Tue 12/167:22 amDEN - SDF
1 stop13h 34mAmerican Airlines
Deal found 10/15$309

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$230
(Kiwi.com)

One-way from

$99
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$427

Good round-trip deal

$350 or less

Good one-way deal

$235 or less
Provider with most accurate pricing for Louisville Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Denver Intl flights.
Search Deals
From Louisville Intl to Denver Intl
Search Deals
One-way flight from Louisville Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 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 Louisville Intl to Denver Intl.
Search Deals
Price to beat on a one-way flight from Louisville Intl to Denver Intl.
Search Deals

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 October 16, 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

Thu 12/4

6:05 am-7:00 am

Nonstop2h 55m

Denver Intl

Mon 12/8

5:05 pm-9:30 pm

Nonstop2h 25m

$355

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 11/6

8:00 am-9:08 am

Nonstop3h 08m

Denver Intl

Tue 12/16

11:21 am-8:49 pm

1 stop7h 28m

$365

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 11/12

10:39 am-2:15 pm

1 stop5h 36m

Denver Intl

Tue 11/18

11:08 am-6:41 pm

1 stop5h 33m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 11/10

6:00 am-9:34 am

1 stop5h 34m

Denver Intl

Sun 11/16

12:50 am-9:52 am

1 stop7h 02m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 11/20

7:45 am-1:15 pm

1 stop7h 30m

Denver Intl

Sat 11/22

9:15 pm-1:45 am

Nonstop2h 30m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 11/12

7:26 pm-11:14 pm

1 stop5h 48m

Denver Intl

Thu 11/20

10:18 am-5:23 pm

1 stop5h 05m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 11/11

6:35 am-10:03 am

1 stop5h 28m

Denver Intl

Wed 11/19

1:57 pm-11:00 pm

1 stop7h 03m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 12/18

10:44 am-2:12 pm

1 stop5h 28m

Denver Intl

Thu 12/25

8:05 am-3:58 pm

1 stop5h 53m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 11/13

6:35 am-10:03 am

1 stop5h 28m

Denver Intl

Sun 11/16

12:50 am-9:52 am

1 stop7h 02m

$375

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 11/11

7:05 am-12:05 pm

1 stop7h 00m

Denver Intl

Tue 11/18

7:05 am-2:04 pm

1 stop4h 59m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 20 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust 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 October 10, 2025.

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, January is the cheapest month in which you can book a flight from Louisville to Denver (average of $71). Flying from Louisville to Denver in July is currently the most expensive (average of $110). 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 October 16, 2025.

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 12% 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 October 16, 2025.
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.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

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
8.0
Very good
7,984 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

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
8,982 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

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
11,043 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

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 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 55m 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?

    This flight path from Louisville Intl to Denver Intl was viewed by 123 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 Louisville to Denver?

    Airlines like Southwest, United Airlines, and Delta fly from Louisville to Denver in about 2h 55m. The time it takes to get you to your destination can typically vary by up to 2h 41m. 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 $268. 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 United Airlines (95%), Air Canada (92%) or Southwest (87%) 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 $392, our data indicates the cheapest price to be $117. The most popular route (Louisville Intl - Denver Intl), is priced around $289.

  • 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, January is the cheapest month in which you can book a flight from Louisville to Denver (average of $71). Flying from Louisville to Denver in July is currently the most expensive (average of $110). 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
Black Hawk
Westminster
Lakewood
Golden
Broomfield
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

Browse thousands of different options on Cheapflights for your next trip

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$175Average$355FlexibilityNo cancel feeOn-time71%
DeltaCheapest$211Average$376FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$428FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$268Average$427FlexibilityNo cancel feeOn-time63%

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