To Denver

Cheap Flights from Louisville to Denver

Browse current best options from Louisville. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Louisville

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

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Louisville to Denver

Explore current cheapest deals departing from Louisville to Denver

Round trip

Sort by: Cheapest

October 7 - October 21

Cheapest

SDF - Denver

$292

$288

Round trip

September 22 - September 29

SDF - Denver

$196

$294

Round trip

July 8 - July 14

Earliest

SDF - Denver

$203

$297

Round trip

July 8 - July 15

Earliest

SDF - Denver

$203

$299

Round trip

October 7 - October 22

SDF - Denver

$288

$299

Round trip

August 24 - September 16

SDF - Denver

$265

$300

Round trip

August 24 - September 2

SDF - Denver

$295

$301

Round trip

October 7 - October 14

Best

SDF - Denver

$318

$302

Round trip

August 10 - August 19

SDF - Denver

$288

$306

Round trip

July 14 - July 21

Best

SDF - Denver

$311

$308

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from Louisville to Denver

For cheap flights from Louisville to Denver, fares typically range from $377–$387, with a median of $387. Right now, current fares are near the typical level for this route. Only 2% of recent fares were classified as a good price, indicating that finding significantly lower prices can be challenging.

When considering the cheapest time to fly from Louisville to Denver, January stands out with a median fare of just $245. Other more affordable months include September, with a median fare of $367, and April, where the median fare is $381. These months offer better value compared to the overall typical fare.

A typical journey from Louisville to Denver takes approximately 5h 42m, including connections. This route is classified as a medium-haul flight, covering a distance of 1644 kilometers.

For flights from Louisville to Denver, almost all itineraries are non-stop, with 90.7% of recent fares being direct flights. For the remaining itineraries that do include connections, travelers typically encounter two stopovers. New deals for this route appear almost daily, suggesting frequent opportunities to find available flights.

How much is a round trip from Louisville to Denver

Regular price: $245 - $489

Prices for flights from Louisville to Denver are currently within the regular range.

The regular price range for flights from Louisville to Denver is between $245 and $489. The current lowest deal is $288 with Breeze Airways, for travel from Oct 7 to Oct 21.

now $288

Low $245

High $489

The cheapest time to fly from Louisville to Denver

Flights from SDF to DEN are cheapest in January, with a median price of $245. The most expensive month to fly is December, with a median price of $395. Prices are generally lower from January to September.

January

Cheapest

Flights from $245

December

Most Expensive

Flights from $395

Jan

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Louisville to Denver

United Airlines

Last-minute flights going from Louisville to Denver

Tue, Jul 7

⌛ Last-Minute

SDF - Denver

Louisville (SDF) - Denver (DEN)

United Airlines

$316

$397

One-way

Wed, Jul 8

⌛ Last-Minute

SDF - Denver

Louisville (SDF) - Denver (DEN)

United Airlines

$203

$297

One-way

Wed, Jul 8

⌛ Last-Minute

SDF - Denver

Louisville (SDF) - Denver (DEN)

United Airlines

$203

$299

One-way

Wed, Jul 8

⌛ Last-Minute

SDF - Denver

Louisville (SDF) - Denver (DEN)

Southwest Airlines

$309

$393

One-way

Thu, Jul 9

⌛ Last-Minute

SDF - Denver

Louisville (SDF) - Denver (DEN)

Breeze Airways

$319

$381

One-way

Thu, Jul 9

⌛ Last-Minute

SDF - Denver

Louisville (SDF) - Denver (DEN)

Breeze Airways

$326

$382

One-way

Biggest price drops on these dates for flights from Louisville to Denver

7 nights

Oct 7 - Oct 14

$318 → $302

4 nights

Oct 10 - Oct 14

$329 → $323

14 nights

Oct 7 - Oct 21

$292 → $288

7 nights

Jul 14 - Jul 21

$311 → $308

Popular Airports to fly from Louisville to Denver

Louisville - Denver route insights

💸 Price insights

Recent fares are near the typical level.

Recent fares from Louisville to Denver are near the typical level of $387.

📅 Best time to fly

January is historically the cheapest month to fly.

Historically, January is the cheapest month to fly from Louisville to Denver, with a median price of $245.

⏱️ Flight duration

Flights typically take 5h 42m.

The typical flight duration from Louisville to Denver is 5 hours and 42 minutes.

✈️ Airlines & availability

90.7% of deals are for direct flights.

Most deals, 90.7%, are for direct flights, with connecting flights typically having 2 stopovers.

🏆 Airline highlight

United Airlines offers direct flights.

United Airlines is one of the airlines offering direct flights on the Louisville to Denver route.

🎯 Booking tip

Deals are frequent on this route.

Deals for flights from Louisville to Denver are frequent, with over 1 deal per day.

Louisville main airports to depart from

Louisville International (SDF)

Cheapest

Louisville International Airport is a convenient departure point for flights from Louisville to Denver.

📍 ~10 km from Louisville city center (reachable by car)

💸 Flights from ~$288

Denver main airports to arrive at

Denver International (DEN)

Cheapest

Denver International Airport is the primary airport for flights arriving in Denver from Louisville.

📍 ~40 km from Denver (reachable by car)

💸 Flights from ~$288

Airports nearby Denver used as alternative

Colorado Springs (COS)

Cheapest

Colorado Springs Airport can be a useful alternative arrival airport, especially for travelers heading south of Denver.

📍 ~110 km from Denver (reachable by car, ~1.5 hours drive depending on traffic)

💸 Flights from ~$317

Eagle County Regional (EGE)

Eagle County Regional Airport is a strong alternative for travelers going to the western Colorado mountains.

📍 ~160 km from Denver (reachable by car)

💸 Flights from ~$360

Aspen–Pitkin County (ASE)

Aspen–Pitkin County Airport is a good option for direct access to the Aspen area.

📍 ~165 km from Denver (reachable by car)

💸 Flights from ~$373

Cheyenne Regional (CYS)

Cheyenne Regional Airport is an alternative for those traveling to northern Denver metro areas.

📍 ~150 km from Denver (reachable by car)

💸 Flights from ~$425

Yampa Valley (HDN)

Yampa Valley Airport serves as a gateway for the Northwest Colorado region.

📍 ~200 km from Denver (reachable by car)

💸 Flights from ~$399

Business & First Class Flight Deals to Denver

Denver, United States

47% AI deal score

$2,642

From SDF

Elite

Oct 18

Denver, United States

38% AI deal score

$2,193

Frequently Asked Questions About Flights to Denver

Historically, the optimal booking window for flights from Louisville to Denver is typically 14-27 days before departure. During this period, the average price observed was $361. Booking 7-13 days out saw a significantly higher average price of $527. For those planning further ahead, booking 28-59 days in advance had an average price of $380, while booking 60+ days out resulted in an average price of $439.

Based on historical data from the trailing 90 days, a good price for a flight from Louisville to Denver is typically around $377 or less. The median price for this route across the trailing quarter was $387. This threshold represents the point at which 25% of observed fares were priced at or below, indicating a competitive rate for travelers.

Historically, January has been the cheapest month to fly from Louisville to Denver, with a median price of $245. Other relatively inexpensive months include September, with a median price of $367, and April, with a median price of $381. The annual median price for this route is $387, making January a particularly good value.

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