What airlines fly to Denver?

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Denver from Louisville according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

How many flights depart from Louisville to Denver on average per day?

As of September 2025, 3 flights take off from Louisville and land in Denver each day. The most common flight departure time for this route is 9:00AM, with 70% of daily flights taking off at noon.

What is the cheapest airline that flies from Louisville Intl to Denver Intl?

American Airlines, Southwest, and Allegiant Air are the most popular carriers operating from Louisville Intl to Denver Intl

How many flights depart from Louisville to Denver on average per week?

26 flights are operational weekly from Louisville to Denver as of September 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

When did momondo last update prices for flights from Louisville Intl Airport to Denver Intl Airport?

Prices for flights from Louisville Intl Airport to Denver Intl Airport are updated daily.

How many operators does momondo search for flights from Louisville Intl Airport to Denver Intl Airport?

As of September 2025, there are 4 operators available to choose from for flights from Louisville Intl Airport to Denver Intl Airport.

How old do you have to be to fly from Louisville Intl Airport to Denver Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$103 Cheap Flights from Louisville to Denver in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Louisville to Denver

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:20 pm - 4:00 amSDF-DEN

13h 40m1 stop

10:29 pm - 2:02 pmDEN-SDF

13h 33m1 stop

$255Multiple Airlines

Find Deal

Thu, Oct 2 - Wed, Oct 8

4:20 pm - 4:00 amSDF-DEN

13h 40m1 stop

10:29 pm - 2:02 pmDEN-SDF

13h 33m1 stop

$257Multiple Airlines

Find Deal

Thu, Oct 2 - Sun, Oct 5

8:10 pm - 8:52 amSDF-DEN

14h 42m2 stops

12:10 pm - 2:02 pmDEN-SDF

23h 52m1 stop

$259Multiple Airlines

Find Deal

Mon, Oct 13 - Wed, Oct 15

6:00 am - 8:24 amSDF-DEN

28h 24m1 stop

5:35 pm - 4:15 pmDEN-SDF

20h 40m1 stop

$260Multiple Airlines

Find Deal

Tue, Dec 2 - Wed, Dec 10

5:31 pm - 6:26 amSDF-DEN

14h 55m2 stops

5:51 pm - 2:02 pmDEN-SDF

18h 11m1 stop

$261Multiple Airlines

Find Deal

Wed, Oct 15 - Wed, Oct 22

4:20 pm - 4:00 amSDF-DEN

13h 40m1 stop

10:29 pm - 2:02 pmDEN-SDF

13h 33m1 stop

$262Multiple Airlines

Find Deal

Thu, Oct 2 - Sun, Oct 5

2:57 pm - 12:21 pmSDF-DEN

23h 24m1 stop

12:36 am - 10:47 pmDEN-SDF

20h 11m1 stop

$263Multiple Airlines

Find Deal

Mon, Oct 13 - Wed, Oct 22

8:10 pm - 3:41 pmSDF-DEN

21h 31m2 stops

12:36 am - 10:47 pmDEN-SDF

20h 11m1 stop

$264Multiple Airlines

Find Deal

Fri, Oct 17 - Fri, Oct 24

6:00 am - 5:04 pmSDF-DEN

13h 04m1 stop

7:22 am - 8:19 pmDEN-SDF

10h 57m1 stop

$277American Airlines

Find Deal

Mon, Nov 17 - Wed, Nov 19

10:01 am - 5:55 pmSDF-DEN

9h 54m1 stop

12:32 pm - 10:55 pmDEN-SDF

8h 23m1 stop

$291American Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 3

American Airlines flights from Louisville to Denver

Our best American Airlines deals on Louisville to Denver flight tickets

American Airlines

Nov 17

SDF6:00 amLouisville Intl

13h 04m

1 stop

DEN5:04 pmDenver Intl

Nov 19

DEN7:22 amDenver Intl

10h 57m

1 stop

SDF8:19 pmLouisville Intl

$277

Find similar

American Airlines

Oct 31

SDF10:01 amLouisville Intl

9h 54m

1 stop

DEN5:55 pmDenver Intl

Nov 3

DEN12:32 pmDenver Intl

8h 23m

1 stop

SDF10:55 pmLouisville Intl

$291

Find similar

American Airlines

Dec 5

SDF1:02 pmLouisville Intl

11h 51m

1 stop

DEN10:53 pmDenver Intl

Dec 13

DEN7:17 amDenver Intl

8h 17m

1 stop

SDF5:34 pmLouisville Intl

$303

Find similar

United Airlines flights from Louisville to Denver

Our best United Airlines deals on Louisville to Denver flight tickets

United Airlines

Oct 1

SDF9:01 amLouisville Intl

3h 00m

DEN10:01 amDenver Intl

Oct 4

DEN9:45 amDenver Intl

2h 43m

SDF2:28 pmLouisville Intl

$417

Find similar

United Airlines

Oct 1

SDF10:55 amLouisville Intl

7h 40m

1 stop

DEN4:35 pmDenver Intl

Oct 4

DEN9:45 amDenver Intl

2h 43m

SDF2:28 pmLouisville Intl

$427

Find similar

United Airlines

Oct 2

SDF9:01 amLouisville Intl

3h 00m

DEN10:01 amDenver Intl

Oct 8

DEN5:45 pmDenver Intl

2h 45m

SDF10:30 pmLouisville Intl

$470

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 10/2

4:20 pm-4:00 am

1 stop13h 40m

Denver Intl

Wed 10/8

10:29 pm-2:02 pm

1 stop13h 33m

$255

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 10/2

4:20 pm-4:00 am

1 stop13h 40m

Denver Intl

Sun 10/5

10:29 pm-2:02 pm

1 stop13h 33m

$257

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 10/13

8:10 pm-8:52 am

2 stops14h 42m

Denver Intl

Wed 10/15

12:10 pm-2:02 pm

1 stop23h 52m

$259

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 12/2

6:00 am-8:24 am

1 stop28h 24m

Denver Intl

Wed 12/10

5:35 pm-4:15 pm

1 stop20h 40m

$260

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Wed 10/15

5:31 pm-6:26 am

2 stops14h 55m

Denver Intl

Wed 10/22

5:51 pm-2:02 pm

1 stop18h 11m

$261

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Thu 10/2

4:20 pm-4:00 am

1 stop13h 40m

Denver Intl

Sun 10/5

10:29 pm-2:02 pm

1 stop13h 33m

$262

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 10/13

2:57 pm-12:21 pm

1 stop23h 24m

Denver Intl

Wed 10/22

12:36 am-10:47 pm

1 stop20h 11m

$263

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Fri 10/17

8:10 pm-3:41 pm

2 stops21h 31m

Denver Intl

Fri 10/24

12:36 am-10:47 pm

1 stop20h 11m

$264

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Mon 11/17

6:00 am-5:04 pm

1 stop13h 04m

Denver Intl

Wed 11/19

7:22 am-8:19 pm

1 stop10h 57m

$277

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Fri 10/31

10:01 am-5:55 pm

1 stop9h 54m

Denver Intl

Mon 11/3

12:32 pm-10:55 pm

1 stop8h 23m

$291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Louisville is in April. Flight prices, which tend to average around $381, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in April, then you should wait until August to fly from Louisville, when ticket prices are also cheap, with an average price of $387.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Tuesday when prices can be found for as low as $451. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $522.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $437. Flights at noon are often more expensive with an average ticket price of $501.

What is the cheapest Louisville Intl to Denver Intl flight route?

Fly from Louisville Intl to Denver Intl for the best Louisville Intl - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $425 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Louisville for as low as $359 on momondo.

What cabin class options are available on Louisville Intl to Denver Intl flights?

There are 4 cabin classes available to choose from on Louisville Intl to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to Denver flights?

No. A direct flight is the cheapest option for a flight between Louisville to Denver.

How have Louisville to Denver flight prices changed over time?

As of September 2025, prices for Louisville to Denver flights are approximately 38% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Denver (SDF to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Denver

Best Price Found	$188
Fastest flight time	2h 50m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Louisville in the past 72 hours is $188. The best round-trip flight deal from Louisville to Denver found on momondo in the last 72 hours is $367.

The fastest flight from Louisville to Denver takes 2h 50m

Direct flights go from Louisville to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

How far is Louisville Intl to Denver Intl by plane?
Louisville Intl and Denver Intl are 1035.1 mi apart from one another. By plane, this route typically takes 7h 24m.
When did momondo last update prices for flights from Louisville Intl Airport to Denver Intl Airport?
Prices for flights from Louisville Intl Airport to Denver Intl Airport are updated daily.
How many operators does momondo search for flights from Louisville Intl Airport to Denver Intl Airport?
As of September 2025, there are 4 operators available to choose from for flights from Louisville Intl Airport to Denver Intl Airport.
How old do you have to be to fly from Louisville Intl Airport to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Louisville to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Louisville to Denver is Airbus A320-100/200 (31.98% of total bookings). The next most popular plane models are Boeing 737-700 Passenger/BBJ1 (winglets) (23.48%), Airbus A319 (14.98%), and Boeing 737-800 (8.70%).
What is the most popular airline from Louisville to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Denver is United Airlines (67% of total bookings). The next most popular airlines are Southwest (27%), American Airlines (3%), and Delta (3%).

Best airlines flying from Louisville to Denver

Compare and see reviews for airlines that fly from Louisville to Denver with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $175	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Southwest	PriceFrom $267	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $292	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

Southwest Flights From Louisville to Denver
The lowest priced Southwest flight from Louisville to Denver from the last 72 hours was $267. Generally, Southwest has 5 flights on this route every week with an average price of $427. Southwest is rated 8.0/10 by our users.
United Airlines Flights From Louisville to Denver
$292 is the best United Airlines flight deal from Louisville to Denver found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $428, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,926 user reviews) flies into Denver from Louisville 14 times in an average week so prices can vary.

Estes Park

Breckenridge

Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Boulder

Manitou Springs

Longmont

Lakewood

Greeley

Thornton

Westminster

Winter Park

Copper Mountain

Frisco

Grand Lake

Silverthorne

Central City

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Denver for you.

Can I find flights from Louisville to Denver with flexible booking policies on momondo?

All flight searches from Louisville to Denver on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Louisville.

I’m not ready to book a flight from Louisville to Denver right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sun 10/19

Sun 10/26

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Cheap flights from Louisville to Denver from $103

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Denver departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Louisville to Denver

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Louisville to Denver

Our best American Airlines deals on Louisville to Denver flight tickets

United Airlines flights from Louisville to Denver

Our best United Airlines deals on Louisville to Denver flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Louisville to Denver that are best for you.

See travel insights to Denver from

How to get the cheapest flight ticket from Louisville to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Tuesday when prices can be found for as low as $451. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $522.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $437. Flights at noon are often more expensive with an average ticket price of $501.

What is the cheapest Louisville Intl to Denver Intl flight route?

Fly from Louisville Intl to Denver Intl for the best Louisville Intl - Denver Intl flight prices

How far in advance should I book a flight to Denver?

What cabin class options are available on Louisville Intl to Denver Intl flights?

There are 4 cabin classes available to choose from on Louisville Intl to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to Denver flights?

No. A direct flight is the cheapest option for a flight between Louisville to Denver.

How have Louisville to Denver flight prices changed over time?

As of September 2025, prices for Louisville to Denver flights are approximately 38% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Louisville Intl to Denver Intl?

American Airlines, Southwest, and Allegiant Air are the most popular carriers operating from Louisville Intl to Denver Intl

What airlines fly to Denver?

How many flights depart from Louisville to Denver on average per day?

As of September 2025, 3 flights take off from Louisville and land in Denver each day. The most common flight departure time for this route is 9:00AM, with 70% of daily flights taking off at noon.

How many flights depart from Louisville to Denver on average per week?

26 flights are operational weekly from Louisville to Denver as of September 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

When to book flights from Louisville to Denver

Cheap Louisville to Denver (SDF to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Denver

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

How far is Louisville Intl to Denver Intl by plane?

When did momondo last update prices for flights from Louisville Intl Airport to Denver Intl Airport?

How many operators does momondo search for flights from Louisville Intl Airport to Denver Intl Airport?

How old do you have to be to fly from Louisville Intl Airport to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

What is the most popular plane model from Louisville to Denver?

What is the most popular airline from Louisville to Denver?

Best airlines flying from Louisville to Denver

Compare and see reviews for airlines that fly from Louisville to Denver with momondo

Southwest Flights From Louisville to Denver

United Airlines Flights From Louisville to Denver

Traveling to a place near Denver?

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Denver?

Can I find flights from Louisville to Denver with flexible booking policies on momondo?

How can momondo help me find flights from Louisville to Denver?

I’m not ready to book a flight from Louisville to Denver right now. Can momondo alert me if prices change?

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado