SDF - DEN

$144 Find Cheap Flights from Louisville to Denver - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$248
Typical prices: $386-$553
Multiple Airlines
Thu 12/13Sun 12/16
SDF - DEN • 1 stop
Cheapest non-stop
$337
Typical prices: $387-$551
Southwest
Mon 12/3Mon 12/17
SDF - DEN • Non-stop
Nonstop flights
You can fly direct with United Airlines and Southwest. Average duration is 3h 07m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 19 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $313 (round-trip)
Shortest trip • 4h 52m (one-way)
Insights
Insights
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We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Louisville to Denver (SDF-DEN)

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

Recent round-trip flight deals from Louisville to Denver

Sun, Dec 13 - Wed, Dec 16
Multiple Airlines Logo
9:09 pm - 8:13 amSDF  Louisville Intl-DEN Denver Intl
13h 04m1 stop Tampa
Multiple Airlines Logo
8:40 pm - 10:59 amDEN  Denver Intl-SDF Louisville Intl
36h 19m2 stops Dallas/Fort Worth New Orleans Louis Armstrong
$248Multiple Airlines
Thu, Dec 10 - Wed, Dec 16
Multiple Airlines Logo
9:09 pm - 8:13 amSDF  Louisville Intl-DEN Denver Intl
13h 04m1 stop Tampa
Multiple Airlines Logo
8:40 pm - 10:59 amDEN  Denver Intl-SDF Louisville Intl
36h 19m2 stops Dallas/Fort Worth New Orleans Louis Armstrong
$265Multiple Airlines
Thu, Dec 10 - Thu, Dec 17
Multiple Airlines Logo
9:09 pm - 8:50 amSDF  Louisville Intl-DEN Denver Intl
37h 41m2 stops Tampa Dallas/Fort Worth
Multiple Airlines Logo
1:28 pm - 10:59 amDEN  Denver Intl-SDF Louisville Intl
19h 31m1 stop New Orleans Louis Armstrong
$266Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
United Airlines Logo
3:24 pm - 4:29 pmSDF  Louisville Intl-DEN Denver Intl
3h 05mnonstop
United Airlines Logo
9:40 am - 2:17 pmDEN  Denver Intl-SDF Louisville Intl
2h 37mnonstop
$339United Airlines
Tue, Dec 1 - Thu, Dec 3
United Airlines Logo
9:00 am - 10:06 amSDF  Louisville Intl-DEN Denver Intl
3h 06mnonstop
United Airlines Logo
9:40 am - 2:17 pmDEN  Denver Intl-SDF Louisville Intl
2h 37mnonstop
$339United Airlines
Tue, Dec 8 - Thu, Dec 10
Southwest Logo
6:50 am - 8:00 amSDF  Louisville Intl-DEN Denver Intl
3h 10mnonstop
Southwest Logo
6:20 pm - 10:55 pmDEN  Denver Intl-SDF Louisville Intl
2h 35mnonstop
$339Southwest
Thu, Dec 10 - Mon, Dec 14
Southwest Logo
6:50 am - 8:00 amSDF  Louisville Intl-DEN Denver Intl
3h 10mnonstop
Southwest Logo
6:20 pm - 10:55 pmDEN  Denver Intl-SDF Louisville Intl
2h 35mnonstop
$339Southwest
Thu, Dec 10 - Thu, Dec 17
Southwest Logo
6:50 am - 8:00 amSDF  Louisville Intl-DEN Denver Intl
3h 10mnonstop
Southwest Logo
1:10 pm - 5:30 pmDEN  Denver Intl-SDF Louisville Intl
2h 20mnonstop
$339Southwest
Thu, Dec 3 - Thu, Dec 3
Delta Logo
6:00 am - 12:06 pmSDF  Louisville Intl-DEN Denver Intl
8h 06m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:10 pm - 11:02 pmDEN  Denver Intl-SDF Louisville Intl
4h 52m1 stop Minneapolis St Paul
$359Delta
Wed, Dec 2 - Thu, Dec 3
Delta Logo
5:59 pm - 11:22 pmSDF  Louisville Intl-DEN Denver Intl
7h 23m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:15 am - 2:16 pmDEN  Denver Intl-SDF Louisville Intl
5h 01m1 stop Atlanta Hartsfield-Jackson
$359Delta
Booking Insights

Price, demand and travel trends for Louisville to Denver flights

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

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Louisville to Denver. It’s 6% cheaper than the average day, while Sunday is the most expensive, with prices 17% higher.

What’s the cheapest month to fly from Louisville to Denver?

•January is the cheapest month to fly from Louisville to Denver at $391 round-trip.
•July ($499) and November ($491) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 27% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Louisville to Denver the cheapest?

Flights from Louisville to Denver are cheapest 19 weeks before departure. Booking in this window typically costs about 52% 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 Louisville to Denver

 
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 Louisville to Denver flights

Low season

February

Cheapest flight

$144
Beat the crowds with an average 43% drop in travelers.
The most popular month to fly with an average 47% increase in travelers.
One-way 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

Your Louisville to Denver flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

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

    • Earliest: departs at 6:15 am and lands at 9:22 am
    • Latest: departs at 3:27 pm and lands at 6:34 pm.

    The flight takes about 3h 07m.

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

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

    • Economy Class
    • First Class

  • How long is a flight from Louisville to Denver?

    A nonstop flight from Louisville to Denver takes 3h 07m, covering 1,021 miles.

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

    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.

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

    Round-trip flights from Louisville to Denver range from $386 to $553, with an average of $464 over the past 12 months. Anything below $386 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 90% above the $464 route average. Book 19 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $313 round-trip via Chicago O'Hare Intl (ORD), compared to $464 for nonstop.

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

    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 Louisville to Denver?

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

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

    Morning is the busiest departure period on Louisville to Denver flights, with 67% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 0%, and night flights for 0%.

  • Have flight prices from Louisville to Denver 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 $248 to $2,418. That means the highest observed fare was about 10x higher than the lowest one.

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

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

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

    One-way fares from Louisville to Denver are currently lower than usual. Average one-way flight prices are about $224, which is 18% below the typical average for this route.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates averaging $56 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Ace
    • Europcar
    • NU Car
    • Hertz

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

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

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

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

    • Atlanta Hartsfield-Jackson (ATL) - 38% of one-stop connections
    • Minneapolis St Paul (MSP) - 23% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 23% of one-stop connections
    • Dallas Love Field (DAL) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 20% on flights from Louisville to Denver. Wednesday is the cheapest departure day at $437 round-trip on average, while Sunday is the most expensive at $546, a difference of $109.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Louisville to Denver?

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

    • United Airlines
    • Southwest

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

    Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 4h 52m, compared with 5h 39m via Chicago Midway (MDW) and 5h 42m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Louisville and Denver?

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

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

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

    Among airlines operating Louisville to Denver flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection

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

  • Which airlines include bags at no extra cost on Louisville to Denver 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 Economy 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 always check the fare details before booking.

  • 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.

Your guide to booking Louisville to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $437, about $109 less than Sunday fares (20% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 52% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Louisville to Denver trip for January. Fares historically average $391 round-trip in that month - typically $108 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 Chicago O'Hare Intl Airport (ORD) can be cheaper than flying direct. The cheapest layover option averages $313 round-trip on this route - about $151 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 Denver Intl Airport.

    • The Westin Denver International Airport
  • 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?

 
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

More options for your flight from Louisville to Denver

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