Are direct flights from Denver to Louisville always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers, which can be appealing. However, connecting flights are often more affordable than direct routes. Weigh the cost savings against the added travel time and potential for delays.

Can flexible travel dates help on Denver to Louisville flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Flying on weekdays or during off-peak seasons usually offers more budget-friendly options compared to weekends or holidays. Even shifting your departure or return by a day or two may yield savings.

What extra costs should I check before booking Denver to Louisville flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget.

Flights From Denver

To Louisville

Cheap Flights from Denver to Louisville

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

Deals from

Denver

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

Prices updated 6 days ago

406 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Aug 2, 2026.)

Today’s best flight deals from Denver to Louisville

Explore current cheapest deals departing from Denver to Louisville

2026-09-17 – 2026-10-10
DEN - Louisville
65% AI deal score
$290
$262
Round trip
2026-10-04 – 2026-10-10
DEN - Louisville
69% AI deal score
$340
$267
Round trip
2026-09-05 – 2026-10-03
DEN - Louisville
50% AI deal score
$289
$269
Round trip
2026-09-17 – 2026-10-03
DEN - Louisville
65% AI deal score
$295
$270
Round trip
2026-09-01 – 2026-09-10
DEN - Louisville
68% AI deal score
$325
$272
Round trip
2026-10-19 – 2026-10-29
DEN - Louisville
48% AI deal score
$315
$302
Round trip
2026-10-12 – 2026-10-19
DEN - Louisville
49% AI deal score
$342
$310
Round trip
2026-09-05 – 2026-09-10
DEN - Louisville
49% AI deal score
$350
$332
Round trip
2026-09-05 – 2026-09-17
DEN - Louisville
45% AI deal score
$303
$332
Round trip
2026-09-10 – 2026-09-17
DEN - Louisville
48% AI deal score
$339
$333
Round trip

Denver to Louisville: Overview

Insights for flights from Denver to Louisville

Fares for flights from Denver to Louisville typically range from $578–$917, with a median price of $702. Right now, current fares are below the typical level, and about 1% of recent fares were classified as a good price.

When seeking cheap flights from Denver to Louisville, the cheapest time to fly is often in November, with a median fare of $149. Other affordable months include September and July, both also showing a median fare of $149.

A typical journey from Denver to Louisville covers a distance of 1644 kilometers, classifying it as a medium-haul route.

Most itineraries for this route connect at least once, with only 9.5% of recent fares being non-stop. For connecting itineraries, the typical number of stopovers is 2.

A typical journey from Denver to Louisville takes about 2h 44m, including connections. New deals for this route show up several times a week, suggesting regular opportunities to find favorable prices.

How much is a round trip from Denver to Louisville

Regular price: $241 - $429

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

The regular price range for flights from Denver to Louisville is $241 to $429. The current lowest deal is $259 with Frontier Airlines for travel from Sep 5-Oct 3.

now $259

Low $241

High $429

The cheapest time to fly from Denver to Louisville

The cheapest month to fly from Denver to Louisville is July, with a median price of $149. The most expensive month is June, with a median price of $715. Prices are generally lower from July to December.

July

Cheapest

Flights from $149

June

Most Expensive

Flights from $715

Jan

Mar

Jun

Jul

Aug

Sep

Nov

Dec

Direct flights from Denver to Louisville

Southwest Airlines

Last-minute flights going from Denver to Louisville

Wed, Aug 5

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$685

$621

One-way

Thu, Aug 6

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Allegiant Air

$685

$554

One-way

Thu, Aug 6

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$689

$618

One-way

Thu, Aug 6

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Allegiant Air

$707

$660

One-way

Fri, Aug 7

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$618

$554

One-way

Fri, Aug 7

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$634

$619

One-way

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

7 nights

Aug 15 - Aug 22

$383 → $261

32%

2 nights

Aug 15 - Aug 17

$419 → $303

28%

7 nights

Aug 19 - Aug 26

$384 → $300

22%

4 nights

Aug 13 - Aug 17

$422 → $347

18%

Popular Airports to fly from Denver to Louisville

Denver - Louisville route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from Denver to Louisville are below the typical level of $702.

📅 Best time to fly

Fly in July, September, or November for the best prices.

Historically, July, September, and November offer the lowest median prices at $149.

⏱️ Flight duration

Direct flights take 2h 44m.

The median flight duration for a direct flight from Denver to Louisville is 2h 44m.

✈️ Airlines & availability

Connecting flights are typical for this route.

Only 9.5% of recent flights from Denver to Louisville are direct, with connecting flights having 2 stopovers.

🏆 Airline highlight

Frontier Airlines offers a deal at $259.

A recent deal on Frontier Airlines from Denver to Louisville was found for $259.

🎯 Booking tip

Deals appear regularly for this route.

Historically, deals for flights from Denver to Louisville appear regularly, about every 30 days.

Denver main airports to depart from

Denver International (DEN)

Cheapest

Denver International is a great option for flights to Louisville, offering competitive prices.

📍 ~40 km from Denver city center (reachable by car or train)

💸 Flights from ~$241

Louisville main airports to arrive at

Louisville International (SDF)

Cheapest

Louisville International Airport is a convenient arrival option for flights from Denver to Louisville.

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

💸 Flights from ~$241

Airports nearby Louisville used as alternative

Cincinnati/Northern Kentucky International (CVG)

Cincinnati/Northern Kentucky International offers significantly more direct flight options, but traffic on I-71 can be unpredictable.

📍 ~160 km from Louisville (reachable by car)

💸 Flights from ~$147

Business & First Class Flight Deals to Louisville

Discover luxury on the budget with premium cabin class on flights from Denver to Louisville.

Elite

Best Elite deals to Louisville

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From DEN

Elite

Sep 22

Louisville, United States

81% AI deal score

$1,268

$783

Save $485

United Airlines

Business Class

From DEN

Elite

Sep 26

Louisville, United States

81% AI deal score

$1,254

$783

Save $471

United Airlines

Business Class

From DEN

Elite

Oct 22

Louisville, United States

81% AI deal score

$1,291

$783

Save $508

United Airlines

Business Class

From DEN

Elite

Jan 06

Louisville, United States

79% AI deal score

$1,123

$783

Save $340

United Airlines

Business Class

From DEN

Elite

Aug 25

Louisville, United States

78% AI deal score

$1,119

$773

Save $346

United Airlines

Business Class

From DEN

Elite

Aug 24

Louisville, United States

78% AI deal score

$1,121

$773

Save $348

United Airlines

Business Class

From DEN

Elite

Aug 31

Louisville, United States

77% AI deal score

$1,079

$773

Save $306

United Airlines

Business Class

From DEN

Elite

Sep 03

Louisville, United States

76% AI deal score

$1,082

$760

Save $322

United Airlines

Business Class

From DEN

Elite

Sep 10

Louisville, United States

71% AI deal score

$1,056

$773

Save $283

United Airlines

Business Class

From DEN

Elite

Dec 14

Louisville, United States

71% AI deal score

$962

$773

Save $189

United Airlines

Business Class

From DEN

Elite

Dec 17

Louisville, United States

71% AI deal score

$979

$773

Save $206

United Airlines

Business Class

From DEN

Elite

Sep 04

Louisville, United States

71% AI deal score

$1,060

$807

Save $253

United Airlines

Business Class

Frequently Asked Questions About Flights to Louisville

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking flights in advance, often several weeks or months before your intended departure, can sometimes result in lower prices. However, prices can fluctuate, so monitoring fares is usually a good strategy. Mid-week bookings may also offer different pricing.

Comparing nearby airports can sometimes provide additional flight options and potentially lower fares. While it may require extra travel time to and from these airports, the savings could be significant. Always factor in ground transportation costs and convenience.

Related routes

More routes from Denver

Flights from Denver to Salt Lake City Flights from Denver to San Francisco Flights from Denver to San Jose Flights from Denver to Santa Ana Flights from Denver to Seattle Flights from Denver to Sydney Flights from Denver to Tampa Flights from Denver to Tokyo Flights from Denver to Townsville Flights from Denver to Tucson Flights from Denver to Tulsa Flights from Denver to Venice

Flights to Louisville from other cities

Flights from Dallas to Louisville Flights from Frankfurt to Louisville Flights from Istanbul to Louisville Flights from Lisbon to Louisville Flights from Munich to Louisville Flights from Oklahoma City to Louisville Flights from Orlando to Louisville Flights from Phoenix to Louisville Flights from Raleigh to Louisville Flights from Rome to Louisville Flights from Tokyo to Louisville Flights from Tulsa to Louisville

Denver to Louisville: Overview

Insights for flights from Denver to Louisville

A typical journey from Denver to Louisville covers a distance of 1644 kilometers, classifying it as a medium-haul route.

Most itineraries for this route connect at least once, with only 9.5% of recent fares being non-stop. For connecting itineraries, the typical number of stopovers is 2.

How much is a round trip from Denver to Louisville

Regular price: $241 - $429

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

The regular price range for flights from Denver to Louisville is $241 to $429. The current lowest deal is $259 with Frontier Airlines for travel from Sep 5-Oct 3.

now $259

Low $241

High $429

The cheapest time to fly from Denver to Louisville

July

Cheapest

Flights from $149

June

Most Expensive

Flights from $715

Jan

Mar

Jun

Jul

Aug

Sep

Nov

Dec

Direct flights from Denver to Louisville

Southwest Airlines

Last-minute flights going from Denver to Louisville

Wed, Aug 5

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$685

$621

One-way

Thu, Aug 6

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Allegiant Air

$685

$554

One-way

Thu, Aug 6

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$689

$618

One-way

Thu, Aug 6

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Allegiant Air

$707

$660

One-way

Fri, Aug 7

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$618

$554

One-way

Fri, Aug 7

⌛ Last-Minute

DEN - Louisville

Denver (DEN) - Louisville (SDF)

Frontier Airlines

$634

$619

One-way

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

7 nights

Aug 15 - Aug 22

$383 → $261

32%

2 nights

Aug 15 - Aug 17

$419 → $303

28%

7 nights

Aug 19 - Aug 26

$384 → $300

22%

4 nights

Aug 13 - Aug 17

$422 → $347

18%

Popular Airports to fly from Denver to Louisville

Denver - Louisville route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from Denver to Louisville are below the typical level of $702.

📅 Best time to fly

Fly in July, September, or November for the best prices.

Historically, July, September, and November offer the lowest median prices at $149.

⏱️ Flight duration

Direct flights take 2h 44m.

The median flight duration for a direct flight from Denver to Louisville is 2h 44m.

✈️ Airlines & availability

Connecting flights are typical for this route.

Only 9.5% of recent flights from Denver to Louisville are direct, with connecting flights having 2 stopovers.

🏆 Airline highlight

Frontier Airlines offers a deal at $259.

A recent deal on Frontier Airlines from Denver to Louisville was found for $259.

🎯 Booking tip

Deals appear regularly for this route.

Historically, deals for flights from Denver to Louisville appear regularly, about every 30 days.

Denver main airports to depart from

Denver International (DEN)

Cheapest

Denver International is a great option for flights to Louisville, offering competitive prices.

📍 ~40 km from Denver city center (reachable by car or train)

💸 Flights from ~$241

Louisville main airports to arrive at

Louisville International (SDF)

Cheapest

Louisville International Airport is a convenient arrival option for flights from Denver to Louisville.

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

💸 Flights from ~$241

Airports nearby Louisville used as alternative

Cincinnati/Northern Kentucky International (CVG)

Cincinnati/Northern Kentucky International offers significantly more direct flight options, but traffic on I-71 can be unpredictable.

Louisville, United States

71% AI deal score

$1,060

$807

Save $253

United Airlines

Business Class

Frequently Asked Questions About Flights to Louisville

Cheap Flights from Denver to Louisville

Today’s best flight deals from Denver to Louisville

Denver to Louisville: Overview

Insights for flights from Denver to Louisville

How much is a round trip from Denver to Louisville

The cheapest time to fly from Denver to Louisville

Direct flights from Denver to Louisville

Last-minute flights going from Denver to Louisville

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

Popular Airports to fly from Denver to Louisville

Denver - Louisville route insights

Recent fares are below the typical level.

Fly in July, September, or November for the best prices.

Direct flights take 2h 44m.

Connecting flights are typical for this route.

Frontier Airlines offers a deal at $259.

Deals appear regularly for this route.

Denver main airports to depart from

Louisville main airports to arrive at

Airports nearby Louisville used as alternative

Business & First Class Flight Deals to Louisville

Best Elite deals to Louisville

Sep 22

Sep 26

Oct 22

Jan 06

Aug 25

Aug 24

Aug 31

Sep 03

Sep 10

Dec 14

Dec 17

Sep 04

Frequently Asked Questions About Flights to Louisville

How can I find cheap flights from Denver to Louisville?

When should I book flights from Denver to Louisville?

Should I compare nearby airports for flights from Denver to Louisville?

Are direct flights from Denver to Louisville always the best option?

Can flexible travel dates help on Denver to Louisville flights?

What extra costs should I check before booking Denver to Louisville flights?

Related routes

More routes from Denver

Flights to Louisville from other cities

Denver to Louisville: Overview

Insights for flights from Denver to Louisville

How much is a round trip from Denver to Louisville

The cheapest time to fly from Denver to Louisville

Direct flights from Denver to Louisville

Last-minute flights going from Denver to Louisville

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

Popular Airports to fly from Denver to Louisville

Denver - Louisville route insights

Recent fares are below the typical level.

Fly in July, September, or November for the best prices.

Direct flights take 2h 44m.

Connecting flights are typical for this route.

Frontier Airlines offers a deal at $259.

Deals appear regularly for this route.

Denver main airports to depart from

Louisville main airports to arrive at

Airports nearby Louisville used as alternative

Business & First Class Flight Deals to Louisville

Best Elite deals to Louisville

Sep 22

Sep 26

Oct 22

Jan 06

Aug 25

Aug 24

Aug 31

Sep 03

Sep 10

Dec 14

Dec 17

Sep 04

Frequently Asked Questions About Flights to Louisville

How can I find cheap flights from Denver to Louisville?

When should I book flights from Denver to Louisville?

Should I compare nearby airports for flights from Denver to Louisville?