SDF - DEN

$129 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 9/30. 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

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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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

Tue, Sep 16 - Sat, Sep 20
American Airlines Logo
2:42 pm - 10:16 pmSDF-DEN
9h 34m1 stop
American Airlines Logo
7:16 am - 5:38 pmDEN-SDF
8h 22m1 stop
$247American Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
American Airlines Logo
6:45 am - 4:37 pmSDF-DEN
11h 52m1 stop
American Airlines Logo
1:24 pm - 11:05 pmDEN-SDF
7h 41m1 stop
$272American Airlines
Find Deal
Sat, Sep 6 - Tue, Sep 9
Southwest Logo
6:00 pm - 6:50 pmSDF-DEN
2h 50mnonstop
Southwest Logo
4:20 pm - 8:55 pmDEN-SDF
2h 35mnonstop
$277Southwest
Find Deal
Sat, Sep 6 - Tue, Sep 9
Southwest Logo
6:00 pm - 6:50 pmSDF-DEN
2h 50mnonstop
Southwest Logo
1:10 pm - 10:40 pmDEN-SDF
7h 30m1 stop
$287Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
Delta Logo
12:48 pm - 5:13 pmSDF-DEN
6h 25m1 stop
Delta Logo
7:30 am - 2:24 pmDEN-SDF
4h 54m1 stop
$297Delta
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Thu, Sep 11 - Sun, Sep 14
Sun Country Air Logo
12:19 pm - 4:43 pmSDF-DEN
6h 24m1 stop
Sun Country Air Logo
10:05 am - 5:33 pmDEN-SDF
5h 28m1 stop
$299Sun Country Air
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Mon, Oct 6 - Sat, Oct 11
Delta Logo
8:17 am - 1:52 pmSDF-DEN
7h 35m1 stop
Delta Logo
5:45 am - 2:20 pmDEN-SDF
6h 35m1 stop
$311Delta
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Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
10:55 am - 2:42 pmSDF-DEN
5h 47m1 stop
United Airlines Logo
5:45 pm - 10:30 pmDEN-SDF
2h 45mnonstop
$315United Airlines
Find Deal
Tue, Sep 2 - Fri, Sep 5
United Airlines Logo
9:31 am - 10:30 amSDF-DEN
2h 59mnonstop
United Airlines Logo
9:49 am - 2:28 pmDEN-SDF
2h 39mnonstop
$322United Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14
Sun Country Air Logo
12:19 pm - 4:43 pmSDF-DEN
6h 24m1 stop
Sun Country Air Logo
10:05 am - 5:33 pmDEN-SDF
5h 28m1 stop
$325Sun Country Air
Find Deal
Expert advice

Expert advice for your flight from Louisville to Denver

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Economy Plus seats offer up to six inches more legroom than standard economy, enhancing comfort.


United offers Priority Boarding for purchase, ensuring overhead bin space for your carry-on.

Southwest

Enjoy two free checked bags up to 50 pounds each, ideal for travelers with extra luggage.


Southwest offers free cancellation up to 10 minutes before departure, providing flexibility for last-minute changes.

Read more about Southwestby Blane Bachelor
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

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.

Read more
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 Saturday. On your return trip to Louisville, you should consider flying back on a Wednesday, and avoid Sundays 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 April, where tickets cost $381 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $466 and $448 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $397 on average.

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 16 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$129
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 2% lower on average.
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 $129 for a one-way ticket and $247 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?

    Only Delta offers inflight Wi-Fi service on the Louisville to Denver flight route.

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

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Louisville to Denver flight route.

  • Which airline alliances offer flights from Louisville to Denver?

    Star Alliance is the only airline alliance operating flights between Louisville and Denver.

  • 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 $427 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 $370 and an overall rating of 8.0.

  • 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 $199 or less one-way and $356 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

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Tuesday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Wednesday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Thursday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Friday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Saturday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Sunday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

See more direct flights

Direct returns

Denver Intl to Louisville Intl

Monday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Tuesday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Wednesday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Thursday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Friday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Saturday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

Sunday

Air Canada, Southwest, United Airlines

Air Canada, Southwest, +1 more

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 4241 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

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

Information on your arrival and departure airports

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