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

United Airlines, American Airlines, and Delta are the most popular carriers operating from Louisville Intl to Denver Intl

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 August 2025, 2 flights take off from Louisville and land in Denver each day. The most common flight departure time for this route is 8:00AM, with 61% of daily flights taking off at noon.

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

19 flights are operational weekly from Louisville to Denver as of August 2025. The most popular departure day for this route is Tue, with 21% 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 August 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.

$70 Cheap Flights from Louisville to Denver in 2025

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Find the cheapest flights from Louisville to Denver

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:31 am - 10:30 amSDF-DEN

2h 59mnonstop

5:45 pm - 10:30 pmDEN-SDF

2h 45mnonstop

$139United Airlines

Find Deal

Tue, Sep 2 - Tue, Sep 9

7:45 am - 1:57 pmSDF-DEN

8h 12m1 stop

9:30 am - 5:38 pmDEN-SDF

6h 08m1 stop

$159American Airlines

Find Deal

Tue, Sep 16 - Sat, Sep 20

7:36 pm - 11:13 pmSDF-DEN

5h 37m1 stop

5:45 pm - 10:30 pmDEN-SDF

2h 45mnonstop

$166United Airlines

Find Deal

Tue, Sep 2 - Tue, Sep 9

5:18 pm - 10:02 pmSDF-DEN

6h 44m1 stop

2:17 pm - 11:03 pmDEN-SDF

6h 46m1 stop

$176American Airlines

Find Deal

Fri, Sep 5 - Tue, Sep 9

7:36 pm - 11:13 pmSDF-DEN

5h 37m1 stop

2:45 pm - 10:24 pmDEN-SDF

5h 39m1 stop

$193United Airlines

Find Deal

Tue, Sep 2 - Tue, Sep 9

10:45 am - 2:55 pmSDF-DEN

6h 10m1 stop

12:45 am - 9:46 amDEN-SDF

7h 01m1 stop

$217Delta

Find Deal

Tue, Sep 16 - Fri, Sep 19

6:00 am - 9:49 amSDF-DEN

5h 49m1 stop

9:17 am - 10:25 pmDEN-SDF

11h 08m1 stop

$221American Airlines

Find Deal

Sat, Oct 11 - Tue, Oct 14

6:00 pm - 6:50 pmSDF-DEN

2h 50mnonstop

7:05 pm - 11:40 pmDEN-SDF

2h 35mnonstop

$245Southwest

Find Deal

Sat, Sep 6 - Mon, Sep 8

4:00 pm - 9:05 pmSDF-DEN

7h 05m1 stop

7:05 pm - 11:40 pmDEN-SDF

2h 35mnonstop

$255Southwest

Find Deal

Sat, Sep 6 - Mon, Sep 8

5:56 pm - 9:52 pmSDF-DEN

5h 56m1 stop

12:59 am - 9:27 amDEN-SDF

6h 28m1 stop

$287Delta

Find Deal

Sat, Sep 27 - Fri, Oct 3

United Airlines flights from Louisville to Denver

Our best United Airlines deals on Louisville to Denver flight tickets

United Airlines

Sep 2

SDF9:31 amLouisville Intl

2h 59m

DEN10:30 amDenver Intl

Sep 9

DEN5:45 pmDenver Intl

2h 45m

SDF10:30 pmLouisville Intl

$139

Find similar

United Airlines

Sep 2

SDF7:36 pmLouisville Intl

5h 37m

1 stop

DEN11:13 pmDenver Intl

Sep 9

DEN5:45 pmDenver Intl

2h 45m

SDF10:30 pmLouisville Intl

$166

Find similar

United Airlines

Sep 2

SDF7:36 pmLouisville Intl

5h 37m

1 stop

DEN11:13 pmDenver Intl

Sep 9

DEN2:45 pmDenver Intl

5h 39m

1 stop

SDF10:24 pmLouisville Intl

$193

Find similar

American Airlines flights from Louisville to Denver

Our best American Airlines deals on Louisville to Denver flight tickets

American Airlines

Sep 16

SDF7:45 amLouisville Intl

8h 12m

1 stop

DEN1:57 pmDenver Intl

Sep 20

DEN9:30 amDenver Intl

6h 08m

1 stop

SDF5:38 pmLouisville Intl

$159

Find similar

American Airlines

Sep 5

SDF5:18 pmLouisville Intl

6h 44m

1 stop

DEN10:02 pmDenver Intl

Sep 9

DEN2:17 pmDenver Intl

6h 46m

1 stop

SDF11:03 pmLouisville Intl

$176

Find similar

American Airlines

Oct 11

SDF6:00 amLouisville Intl

5h 49m

1 stop

DEN9:49 amDenver Intl

Oct 14

DEN9:17 amDenver Intl

11h 08m

1 stop

SDF10:25 pmLouisville Intl

$221

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 9/2

9:31 am-10:30 am

Nonstop2h 59m

Denver Intl

Tue 9/9

5:45 pm-10:30 pm

Nonstop2h 45m

$139

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 9/16

7:45 am-1:57 pm

1 stop8h 12m

Denver Intl

Sat 9/20

9:30 am-5:38 pm

1 stop6h 08m

$159

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 9/2

7:36 pm-11:13 pm

1 stop5h 37m

Denver Intl

Tue 9/9

5:45 pm-10:30 pm

Nonstop2h 45m

$166

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Fri 9/5

5:18 pm-10:02 pm

1 stop6h 44m

Denver Intl

Tue 9/9

2:17 pm-11:03 pm

1 stop6h 46m

$176

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 9/2

7:36 pm-11:13 pm

1 stop5h 37m

Denver Intl

Tue 9/9

2:45 pm-10:24 pm

1 stop5h 39m

$193

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Tue 9/16

10:45 am-2:55 pm

1 stop6h 10m

Denver Intl

Fri 9/19

12:45 am-9:46 am

1 stop7h 01m

$217

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Sat 10/11

6:00 am-9:49 am

1 stop5h 49m

Denver Intl

Tue 10/14

9:17 am-10:25 pm

1 stop11h 08m

$221

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Sat 9/6

6:00 pm-6:50 pm

Nonstop2h 50m

Denver Intl

Mon 9/8

7:05 pm-11:40 pm

Nonstop2h 35m

$245

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Sat 9/6

4:00 pm-9:05 pm

1 stop7h 05m

Denver Intl

Mon 9/8

7:05 pm-11:40 pm

Nonstop2h 35m

$255

LouisvilleDenver

SDF - DEN

SDFDEN

Louisville Intl

Sat 9/27

5:56 pm-9:52 pm

1 stop5h 56m

Denver Intl

Fri 10/3

12:59 am-9:27 am

1 stop6h 28m

$287

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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 $447. 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 $533.

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 $421 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 $347 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 August 2025, prices for Louisville to Denver flights are approximately 19% 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	$70
Fastest flight time	2h 50m
Direct flights	Mon, Tue, Wed, Fri, Sat and Sun
Airports in Denver	1 airport

The best one-way flight to Denver from Louisville in the past 72 hours is $70. The best round-trip flight deal from Louisville to Denver found on momondo in the last 72 hours is $139.

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

Direct flights go from Louisville to Denver on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Southwest.

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 2h 50m.
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 August 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 (25.20% of total bookings). The next most popular plane models are Boeing 737-700 Passenger/BBJ1 (winglets) (21.16%), Airbus A319 (19.71%), and Boeing 737-800 (12.44%).
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
Delta	PriceFrom $196	Free Cancellation	Rating 8.0 7,987 reviews	Search Delta flights
American Airlines	PriceFrom $211	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $267	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $314	Free Cancellation	Rating 7.4 8,912 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 2 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
$314 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 8,912 user reviews) flies into Denver from Louisville 10 times in an average week so prices can vary.

Estes Park

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Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Longmont

Boulder

Manitou Springs

Lakewood

Greeley

Westminster

Thornton

Winter Park

Grand Lake

Copper Mountain

Silverthorne

Golden

Frisco

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

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Cheap flights from Louisville to Denver from $70

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 9/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Louisville to Denver

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United Airlines flights from Louisville to Denver

Our best United Airlines deals on Louisville to Denver flight tickets

American Airlines flights from Louisville to Denver

Our best American Airlines deals on Louisville to Denver flight tickets

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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 $447. 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 $533.

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 August 2025, prices for Louisville to Denver flights are approximately 19% 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?

United Airlines, American Airlines, and Delta 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 August 2025, 2 flights take off from Louisville and land in Denver each day. The most common flight departure time for this route is 8:00AM, with 61% of daily flights taking off at noon.

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

19 flights are operational weekly from Louisville to Denver as of August 2025. The most popular departure day for this route is Tue, with 21% 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