SDF - DEN

$119 Find Cheap Flights from Louisville to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Denver departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$258
Overall average: $395
Multiple Airlines
Fri 4/24Sat 5/2
SDF - DEN • 2 stops
Cheapest non-stop
$277
Typical prices: $387-$493
Southwest
Wed 6/3Wed 6/10
SDF - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus adds six inches of legroom.
Southwest allows two free checked bags up to 50 lbs.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $277 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest and United Airlines. Average duration is 3h 02m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $254 (round-trip)
Shortest trip • 5h 04m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Louisville to Denver (SDF-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Denver

Fri, Apr 24 - Sat, May 2
Multiple Airlines Logo
7:48 pm - 12:14 pm
SDF
-
DEN
18h 26m
2 stops
Multiple Airlines Logo
3:45 pm - 1:26 pm
DEN
-
SDF
19h 41m
1 stop
$258Multiple Airlines
Mon, Apr 20 - Sat, May 2
Multiple Airlines Logo
7:48 pm - 12:14 pm
SDF
-
DEN
18h 26m
2 stops
Multiple Airlines Logo
3:45 pm - 1:26 pm
DEN
-
SDF
19h 41m
1 stop
$263Multiple Airlines
Wed, Jun 3 - Wed, Jun 10
Southwest Logo
6:40 pm - 7:30 pm
SDF
-
DEN
2h 50mnonstop
Southwest Logo
7:40 pm - 12:15 am
DEN
-
SDF
2h 35mnonstop
$277Southwest
Sat, May 9 - Wed, May 13
Multiple Airlines Logo
8:06 pm - 2:32 pm
SDF
-
DEN
20h 26m
1 stop
Multiple Airlines Logo
6:30 am - 9:03 am
DEN
-
SDF
24h 33m
2 stops
$279Multiple Airlines
Sat, May 9 - Wed, May 13
Multiple Airlines Logo
8:06 pm - 2:32 pm
SDF
-
DEN
20h 26m
1 stop
Multiple Airlines Logo
6:03 am - 1:27 pm
DEN
-
SDF
29h 24m
1 stop
$282Multiple Airlines
Wed, May 13 - Mon, May 18
Multiple Airlines Logo
8:06 pm - 2:32 pm
SDF
-
DEN
20h 26m
1 stop
Multiple Airlines Logo
9:54 pm - 11:34 am
DEN
-
SDF
35h 40m
2 stops
$283Multiple Airlines
Wed, Apr 15 - Sat, Apr 25
Southwest Logo
6:40 pm - 7:30 pm
SDF
-
DEN
2h 50mnonstop
Southwest Logo
12:30 pm - 4:55 pm
DEN
-
SDF
2h 25mnonstop
$286Southwest
Wed, Jun 3 - Wed, Jun 10
Southwest Logo
6:40 pm - 7:30 pm
SDF
-
DEN
2h 50mnonstop
Southwest Logo
6:05 am - 4:45 pm
DEN
-
SDF
8h 40m
1 stop
$287Southwest
Wed, Jun 3 - Wed, Jun 10
Southwest Logo
12:10 pm - 7:30 pm
SDF
-
DEN
9h 20m
2 stops
Southwest Logo
7:40 pm - 12:15 am
DEN
-
SDF
2h 35mnonstop
$292Southwest
Wed, Apr 15 - Sat, Apr 25
United Airlines Logo
9:00 am - 10:08 am
SDF
-
DEN
3h 08mnonstop
United Airlines Logo
1:25 pm - 9:44 pm
DEN
-
SDF
6h 19m
1 stop
$296United Airlines
Booking Insights

KAYAK's insights & trends for Louisville to Denver flights

Get data-powered insights and trends into flights from Louisville to Denver to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Louisville to Denver?

The average price of all round-trip flights from Louisville to Denver clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Denver on a Tuesday and more expensive on a Sunday. On your return trip to Louisville, you should consider flying back on a Saturday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Denver is August, where tickets cost $377 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $498 and $449 respectively.

Can I save money by flying with a layover from Louisville to Denver?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $447, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Denver, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Louisville to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonFebruary
Cheapest flight$119
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Louisville to Denver

When to book flights from Louisville to Denver

Are your dates flexible? Find out the best times to travel from Louisville to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Denver

  • Are there wheelchair accessible services in Louisville International Airport?

    There are wheelchair accessible services in Louisville International Airport. The airport has an Americans with Disabilities Act (ADA) coordinator who is responsible for ensuring that all airport facilities, services, and programs are accessible to people with disabilities.

  • Are there pet relief areas at Denver International Airport?

    Yes, there are pet relief areas at Denver International Airport. There are three options for pet relief areas: indoor, outdoor, and on-leash. The indoor pet relief area is located in the main terminal on the west side of the building near the baggage claim area. The outdoor pet relief area is located on the north side of the building near the parking garage. The on-leash pet relief area is located on the south side of the building near the employee parking lot.

  • Are there lounges in Denver International Airport?

    The various options are as follows. The United Club is located in Concourse C near Gate C37. It offers a variety of amenities including complimentary snacks and beverages, Wi-Fi, TV, and more. The American Airlines Admirals Club is located in Concourse B near Gate B50. The Delta Sky Club is located in Concourse A near Gate A21. It offers a variety of amenities including complimentary snacks and beverages, Wi-Fi, TV, and more.

  • How do you get from the Denver International Airport to the city center?

    The best way to get from the Denver International Airport (DEN) to the city center is by taking the A Line train. The A Line runs every 15min and takes about 37min to reach Denver Union Station. Other options include taking a bus or taxi, but these are generally more expensive and take longer.

  • What is the cheapest flight from Louisville to Denver?

    In the last 3 days, the lowest price for a flight from Louisville to Denver was $119 for a one-way ticket and $258 for a round-trip.

  • Do I need a passport to fly between Louisville and Denver?

    No, a passport isn't needed to fly from Louisville to Denver. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Louisville to Denver?

    Louisville airport is called Louisville Intl and the only airport in Denver is Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Denver?

    JetBlue, and Delta offer inflight Wi-Fi service on the Louisville to Denver flight route.

  • Which aircraft models fly most regularly from Louisville to Denver?

    The Airbus A319 is the aircraft model that flies most regularly on the Louisville to Denver flight route.

  • Which airline alliances offer flights from Louisville to Denver?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Louisville and Denver, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Denver?

    There are nonstop flights from Louisville to Denver on a daily basis.

  • Which is the best airline for flights from Louisville to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Louisville to Denver are Southwest and Delta. With an average price for the route of $424 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $371 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Louisville to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Louisville with another airline. Booking your flights between Louisville and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $189 or less one-way and $362 or less round-trip.
  • There are a variety of services and amenities that are available for passengers in Strandiford Field International Airport Louisville (SDF). These include restaurants, shops, and other amenities.
  • There are a few options for getting from the city center to Louisville International Airport in Kentucky. You could take a bus, taxi, or ride-sharing service like Uber or Lyft. You could also rent a car, but this may be more expensive than the other options. If you are flying into Louisville, you may be able to find a hotel that offers a shuttle service to and from the airport.
  • Luggage services are available at the Louisville International Airport in Kentucky. There are a number of companies that offer a variety of services, including luggage storage, luggage shipping, and luggage repair.
  • There are car rentals available at Denver International Airport (DEN). The options include renting a car from the airport, or using a ride sharing service such as Uber or Lyft. There are also a number of car rental companies that have locations in the city center, such as Enterprise, Hertz, and Avis.
  • There are not currently any pet relief areas in Strandiford Field International Airport Louisville. However, there are a lot of pet-friendly services within the airport to ensure that your travel here is comfortable with your fluffy friend.

Prefer to fly direct from Louisville to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Louisville Intl to Denver Intl.
Find which airlines fly direct from Louisville Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Louisville Intl to Denver Intl

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Direct returns

Denver Intl to Louisville Intl

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Reviews of the top 4 airlines serving from Louisville to Denver

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4320 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.6Crew
8.0Comfort
Airline reviews

We had a 5 hour delay on the tarmac in Baltimore

2.0 MediocreDavid, Mar 2026
ALB - BWI
Read more Southwest reviews

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Everything you need to know for your flight from Louisville to Denver

Information on your arrival and departure airports