DEN - SDF

$138 Find Cheap Flights from Denver to Louisville - Compare and Save

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Everything you should know

Cheapest round-trip
$318
Typical prices: $402-$577
Multiple Airlines
Tue 11/6Sun 11/18
DEN - SDF • 1 stop
Cheapest non-stop
$357
Typical prices: $405-$576
Southwest
Sun 12/9Fri 12/14
DEN - SDF • Non-stop
Nonstop flights
You can fly direct with United Airlines and Southwest. Average duration is 2h 37m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 14 weeks in advance save around 53% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $266 (round-trip)
Shortest trip • 5h 07m (one-way)
Insights
Insights
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We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Denver to Louisville (DEN-SDF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Louisville

Fri, Nov 6 - Wed, Nov 18
Multiple Airlines Logo
1:18 pm - 3:26 pmDEN  Denver Intl-SDF Louisville Intl
24h 08m1 stop Raleigh-Durham
Multiple Airlines Logo
4:06 pm - 8:46 pmSDF  Louisville Intl-DEN Denver Intl
6h 40m1 stop Raleigh-Durham
$318Multiple Airlines
Sun, Sep 27 - Sat, Oct 3
Allegiant Air Logo
12:17 pm - 2:28 pmDEN  Denver Intl-SDF Louisville Intl
24h 11m1 stop Valparaiso Destin-Ft Walton Beach
Allegiant Air Logo
9:14 pm - 10:25 amSDF  Louisville Intl-DEN Denver Intl
15h 11m1 stop Valparaiso Destin-Ft Walton Beach
$328Allegiant Air
Wed, Nov 4 - Wed, Nov 4
Southwest Logo
6:00 am - 12:15 pmDEN  Denver Intl-SDF Louisville Intl
4h 15m1 stop Nashville Intl
Southwest Logo
7:35 pm - 10:40 pmSDF  Louisville Intl-DEN Denver Intl
5h 05m1 stop Chicago Midway
$341Southwest
Sat, Nov 7 - Tue, Nov 17
Delta Logo
6:00 am - 12:54 pmDEN  Denver Intl-SDF Louisville Intl
4h 54m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:55 pm - 11:34 pmSDF  Louisville Intl-DEN Denver Intl
6h 39m1 stop Minneapolis St Paul
$341Delta
Wed, Nov 11 - Wed, Nov 18
Delta Logo
4:14 pm - 10:46 pmDEN  Denver Intl-SDF Louisville Intl
4h 32m1 stop Minneapolis St Paul
Delta Logo
3:00 pm - 8:20 pmSDF  Louisville Intl-DEN Denver Intl
7h 20m1 stop Atlanta Hartsfield-Jackson
$341Delta
Wed, Nov 4 - Wed, Nov 4
Southwest Logo
6:00 am - 12:15 pmDEN  Denver Intl-SDF Louisville Intl
4h 15m1 stop Nashville Intl
Southwest Logo
3:50 pm - 10:40 pmSDF  Louisville Intl-DEN Denver Intl
8h 50m2 stops Nashville Intl Chicago Midway
$346Southwest
Wed, Oct 28 - Mon, Nov 2
United Airlines Logo
5:45 pm - 10:24 pmDEN  Denver Intl-SDF Louisville Intl
2h 39mnonstop
United Airlines Logo
8:00 am - 9:04 amSDF  Louisville Intl-DEN Denver Intl
3h 04mnonstop
$357United Airlines
Mon, Oct 19 - Thu, Oct 29
United Airlines Logo
5:48 pm - 10:32 pmDEN  Denver Intl-SDF Louisville Intl
2h 44mnonstop
United Airlines Logo
8:00 am - 9:04 amSDF  Louisville Intl-DEN Denver Intl
3h 04mnonstop
$361United Airlines
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
6:30 am - 2:51 pmDEN  Denver Intl-SDF Louisville Intl
6h 21m1 stop Charlotte Douglas
American Airlines Logo
5:49 pm - 11:58 pmSDF  Louisville Intl-DEN Denver Intl
8h 09m1 stop Dallas/Fort Worth
$377American Airlines
Sat, Oct 3 - Mon, Oct 12
American Airlines Logo
9:03 am - 6:50 pmDEN  Denver Intl-SDF Louisville Intl
7h 47m1 stop Dallas/Fort Worth
American Airlines Logo
7:27 pm - 11:58 pmSDF  Louisville Intl-DEN Denver Intl
6h 31m1 stop Dallas/Fort Worth
$377American Airlines
Booking Insights

Price, demand and travel trends for Denver to Louisville flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Denver to Louisville with more confidence.

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

Saturday is the cheapest day of the week to fly from Denver to Louisville, it is 18% cheaper than the average day. Monday is the most expensive day with flight prices 9% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • August is the cheapest month to fly from Denver to Louisville at $402 round-trip.
  • July ($568) and December ($549) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 41% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Denver to Louisville the cheapest?

Flights from Denver to Louisville are cheapest 14 weeks before departure. Booking in this window typically costs about 53% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Denver to Louisville

 
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.

Key details for Denver to Louisville flights

Low season

January

Cheapest flight

$138
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Denver to Louisville

When to book flights from Denver to Louisville

Are your dates flexible? Find out the best times to travel from Denver to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Denver to Louisville flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Where can your furry friend spend the night at Denver international airport?

    You are spending the night at Denver international airport; take your furry friend to the pet resort, which offers overnight pet stays. The resort offers flat-screen TVs, private apartments, massages, on-site medical professionals, and obedience lessons. Large dog apartments are available at the resort, with enormous indoor play spaces with indoor grass, plush rubber flooring, and a splash pool in the shape of a bone.

  • Where can passengers nurse their babies at Denver international airport?

    DEN provides mothers traveling with young children with a cozy, private area where they can pump or nurse their children. Three nursing rooms are conveniently positioned in the middle of each DEN concourse, one is on Level 5 near arrivals in the middle of the terminal, and the other two are on the far east side of Concourse B. Power outlets, a sink, a changing table, and comfortable seats are all provided in the rooms.

  • Which facilities does Denver international airport offer to persons with limited mobility?

    The Denver International Airport ensures visitors have a pleasant experience while traveling. Accessible parking is available at the airport for those with limited mobility. There is also a family restroom in Jeppesen Terminal. In addition, a remote-controlled, height-adjustable adult changing table, a normal toilet, and a sink are all included in the Companion Care restroom at DEN.

  • Which means of transport is ideal if you want to explore Louisville?

    Consider renting a car at Louisville International Airport if you are making travel plans to Louisville. The Louisville Palace Theater, Louisville Mega Cavern, and Churchill Downs are among the must-see locations. Additionally, Cherokee Park in Louisville Old Town is a lovely natural setting where you may stroll and take a break. Renting a car will allow you the freedom and flexibility to explore this area. In the lower-level baggage claim area, you can hire a car from companies like Alamo, Avis, Budget, Hertz, National, Payless, and Thrifty.

  • Which airlines offer extra legroom and free seat selection on Denver to Louisville flights?

    Among airlines operating Denver to Louisville flights:

    • United Airlines: offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Denver to Louisville?

    2 airlines operate flights between Denver and Louisville. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Southwest

  • Which airports can I use when flying from Denver to Louisville?

    Flights from Denver to Louisville usually depart from Denver Intl (DEN) and arrive at Louisville Intl (SDF).

  • Which airlines include bags at no extra cost on Denver to Louisville flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in First Class
    • Southwest: a cabin bag in Economy Class class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Denver to Louisville?

    Two cabin classes are available on flights from Denver to Louisville:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Denver to Louisville?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $266 round-trip via Minneapolis St Paul (MSP), compared to $499 for nonstop.

  • What is the standard checked-bag allowance on flights from Denver to Louisville?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Denver to Louisville?

    The Airbus A320-100/200 family is used most often on this route, operated mainly by United Airlines and JetBlue. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • Which airports do connecting flights from Denver to Louisville pass through?

    One-stop flights from Denver to Louisville most commonly connect through:

    • Dallas/Fort Worth (DFW) - 65% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 18% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 6% of one-stop connections
    • Chicago Midway (MDW) - 6% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Denver to Louisville?

    On the Denver to Louisville route, being flexible with your departure day can save you up to 26%. Saturday is the cheapest day at $405 round-trip on average, while Monday is the most expensive at $541: a $136 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How are flight departures from Denver to Louisville spread across the day?

    Morning is the busiest departure period on Denver to Louisville flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

  • What popular places can I visit in Louisville?

    Some of the most popular sights in Louisville are Louisville Waterfront Park and Masonic Widows and Orphans Home. These are among the most viewed places in Louisville on KAYAK.

  • What are the earliest and latest flights from Denver to Louisville?

    These are the earliest and latest flight times available from Denver to Louisville:

    • Earliest: departs at 9:40 am and lands at 12:17 pm
    • Latest: departs at 6:20 pm and lands at 8:57 pm.

    The flight takes about 2h 37m.

  • How expensive are last-minute Denver to Louisville flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 81% above the route average of $492. Book 14 weeks before departure for the lowest fares.

  • How long is a flight from Denver to Louisville?

    A nonstop flight from Denver to Louisville takes 2h 37m, covering 1,021 miles.

  • Do I need a passport to fly from Denver to Louisville?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Denver to Louisville changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $318 to $1,427. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Denver to Louisville looking right now?

    One-way fares from Denver to Louisville are currently lower than usual. Average one-way flight prices are about $166, which is 41% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Denver to Louisville?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 5h 07m, compared with 5h 11m via Minneapolis St Paul (MSP) and 5h 44m via Dallas/Fort Worth (DFW).

  • What is the time difference between Denver and Louisville?

    Louisville is 2 hours ahead of Denver (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Louisville Intl Airport (SDF)?

    Louisville Intl Airport (SDF) hosts 5 major car rental companies, with daily rates starting from around $32 for economy cars. Top options include:
    • Hertz
    • Dollar
    • Alamo
    • Thrifty
    • Budget

  • How much should I expect to pay for a Denver to Louisville flight?

    Round-trip flights from Denver to Louisville range from $402 to $577, with an average of $492 over the past 12 months. Anything below $402 counts as a good deal.

  • Which airlines offer Wi-Fi on Denver to Louisville flights?

    JetBlue is the only airline on the Denver to Louisville route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking Denver to Louisville flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Saturday departure instead of Monday. On this route, Saturday flights average $405 - about $136 less than Monday (25% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 53% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Denver to Louisville trip for August. Fares historically average $402 round-trip in that month - typically $166 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Minneapolis St Paul Airport (MSP) can be cheaper than flying direct. The cheapest layover option averages $266 round-trip on this route - about $233 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Louisville Intl Airport.
    - Best Western Louisville Airport Expo
    - Days Inn by Wyndham Louisville Airport Fair and Expo Center
    - Baymont by Wyndham Louisville Airport South
  • When arriving at Louisville Airport (SDF), mothers who need to take care of their babies can use the airport's breastfeeding area. The Mother's Room has a sizable common room and three separate, independent suites, each with a locking door, dimming lights, a cozy glider, a changing station, and many outlets with USB ports.
  • There are numerous food outlets at Denver International Airport (DEN) where travelers can purchase food. Eats Delivered service also delivers food from a few of the airport's most popular DEN eateries to any location. In addition, the AtYourGate app can be downloaded by users, and it will deliver meals to you at your gate, in the Jeppesen Terminal, or even at baggage claim.
  • Military personnel should utilize the Louisville Airport USO lounge. The lounge is in the hallway on the land side, behind the west ticket counters. Upon arrival at the airport, all service members and their families can receive assistance from military personnel. They can be found in the hallway behind the west ticket counters in the landside terminal.
  • Denver International Airport is pet-friendly and has private restrooms outside the Jeppesen Terminal and on each concourse. In addition, the indoor pet relief areas also offer service animals and furry friends a cozy and inviting space to take care of business before or after a flight.
  • Most airlines flying on the Denver to Louisville route have a layover stop. The common layover stop for flights on this route is O'Hare international airport. For passengers who want a direct flight, consider booking a flight ticket with Frontier, United Airlines, and Southwest.

Prefer to fly direct from Denver to Louisville?

 
Find which airlines fly direct from Denver Intl Airport to Louisville Intl Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

More options for your flight from Denver to Louisville

Complete your trip to Louisville with a hotel stay or car rental