$129 Cheap United flights from Denver to Louisville (DEN to SDF)

Find The Best Day To Fly from Denver to Louisville

Amazing United DEN to SDF Flight Deals

The cheapest flights to Louisville Intl. found within the past 7 days were $133 round trip and $129 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Nov 15 - Tue, Nov 18
DEN
Denver
SDF
Louisville
$133 Roundtrip, found 5 days ago
$133
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 15 from Denver to Louisville, returning Tue, Nov 18, priced at $133 found 5 days ago
Fri, Aug 8 - Sat, Aug 9
DEN
Denver
SDF
Louisville
$156 Roundtrip, found 6 days ago
$156
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 8 from Denver to Louisville, returning Sat, Aug 9, priced at $156 found 6 days ago
Sat, Nov 15 - Tue, Nov 18
DEN
Denver
SDF
Louisville
$183 Roundtrip, found 5 days ago
$183
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 15 from Denver to Louisville, returning Tue, Nov 18, priced at $183 found 5 days ago
Thu, Aug 7 - Mon, Aug 11
DEN
Denver
SDF
Louisville
$198 Roundtrip, found 6 days ago
$198
Roundtrip
found 6 days ago
Select United flight, departing Thu, Aug 7 from Denver to Louisville, returning Mon, Aug 11, priced at $198 found 6 days ago
Sat, Aug 23 - Tue, Aug 26
DEN
Denver
SDF
Louisville
$302 Roundtrip, found 12 hours ago
$302
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Aug 23 from Denver to Louisville, returning Tue, Aug 26, priced at $302 found 12 hours ago

SDF From DEN Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Fairfield Inn & Suites by Marriott Louisville Downtown

Fairfield Inn & Suites by Marriott Louisville Downtown

2.5 out of 5
per person
Sep 1 - Sep 5
found 1 day ago
Roundtrip flight included
Denver (DEN) to Louisville (SDF)
Louisville Marriott Downtown

Louisville Marriott Downtown

4 out of 5
per person
Sep 1 - Sep 5
found 1 day ago
Roundtrip flight included
Denver (DEN) to Louisville (SDF)
Hotel Distil, Autograph Collection

Hotel Distil, Autograph Collection

4 out of 5
Save 100% on your flight
per person
Jul 28 - Aug 1
found 1 day ago
Roundtrip flight included
Denver (DEN) to Louisville (SDF)
Don't see what you're looking for?
See all available trips from Denver Intl. to Louisville Intl.
View all trips

Frequently asked questions

Can I catch a flight from Denver Airport to SDF right now?
It's wise to learn about any quarantine requirements and travel advice reports in place in your destination. Ensure you go to the Covid-19 Travel Advisor for up-to-date info on booking a flight to Louisville Muhammad Ali Intl. Airport.
What terminal is United Airlines at Denver Airport?
If you're flying with United Airlines from DIA airport, you'll usually catch your flight from the main terminal. If you're traveling to Louisville Intl. Airport (SDF) from here, you're most likely to be disembarking at the main terminal.
Are there United Airlines non-stop flights from DEN to SDF?
You'll be glad to hear you can go straight from DEN to Louisville Intl. Airport (SDF) with United Airlines and avoid tiresome layovers. The less time you spend getting to your destination, the more time you'll have for vacation adventures.
How long is a United Airlines flight from DEN to SDF?
Tailwinds, headwinds, bad weather ... They're just some things that can influence how long you spend in your seat. However, a flight from Denver Airport to Louisville Muhammad Ali Intl. Airport with United Airlines takes about 3 hours and 15 minutes, so you'll have landed and be in vacation mode before you know it.
What type of aircraft does United Airlines fly from DEN to SDF?
If you're on your way from DEN to SDF with United Airlines, you'll probably be cruising the skies aboard the Airbus A319 or the Embraer 175.
How many direct and indirect flights does United Airlines fly from DEN to SDF?
You'll find there are about 3 United Airlines flights each day from DEN to SDF.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Louisville Muhammad Ali Intl. Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Denver DEN to Louisville SDF 

To find the best deals on flights to Denver from Louisville with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Denver DEN to Louisville SDF with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $133 to $302, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Denver DEN to Louisville SDF 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Denver to Louisville costs from $129. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Louisville SDF from  Denver DEN with United 

To find a cheap United flight from Denver DEN to Louisville SDF, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Denver DEN to Louisville SDF 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Denver DEN to Louisville SDF with United 

If you’re keen to be on Louisville soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Denver DEN to Louisville SDF 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Louisville SDF from  Denver DEN with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Louisville

Crowne Plaza Louisville Airport Expo Ctr by IHG

Crowne Plaza Louisville Airport Expo Ctr by IHG

3.5 out of 5
830 Phillips Lane, Louisville, KY
This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the free WiFi in public areas, express check-in, ...
8.6/10 Excellent! (654 reviews)
"Would recommend"

Reviewed on Jul 14, 2025

Crowne Plaza Louisville Airport Expo Ctr by IHG
Hampton Inn Louisville-Airport

Hampton Inn Louisville-Airport

2.5 out of 5
800 Phillips Ln, Louisville, KY
This hotel features an outdoor pool and a 24-hour gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free ...
8.6/10 Excellent! (1,003 reviews)
"Other than price gouging due to AAU tournament, very pleasant and comfortable stay."

Reviewed on Jul 11, 2025

Hampton Inn Louisville-Airport
Tru by Hilton Louisville Airport

Tru by Hilton Louisville Airport

2.5 out of 5
810 Phillips Lane, Louisville, KY
A gym is featured at this hotel, along with free self parking. Guests will appreciate freebies like full breakfast, WiFi in public areas, and a roundtrip airport ...
9/10 Wonderful! (904 reviews)
"Very friendly and nice. Definitely will stay at Tru again!"

Reviewed on Jul 13, 2025

Tru by Hilton Louisville Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.