Find Cheap Flights from Kentucky to Denver International

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Book cheap flights from Kentucky to Denver International (round-trip)

Airports
Origin
Louisville
$138
only
$138
Destination
Denver
$138
only
$138
Sat, May 12
SDF
DEN
3h 00m
Wed, May 16
DEN
SDF
2h 40m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

DEN
ORD
Excellent 9.6

They left me alone.

Fold down tables are tiny

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

IAD
SAT
Mediocre 3.6

The crew was helpful and apologetic.

They purposefully understaffed the check in counter, which you have to use. They charge for every little thing, even carry on bags and snacks. The seats might as well be lawn chairs. They are so close together everyone onboard will die from head injuries if there's an accident. I'll fly Southwest from now on.

Sat, May 12
SDF
DEN
3h 00m
Sun, May 13
DEN
SDF
14h 33m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
SDF
DEN
7h 14m
Tue, Mar 20
DEN
SDF
5h 00m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 13 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

SDF
DEN
Excellent 10.0

I was very nervous, but the flight attendant made me feel at ease.

SDF
DEN
Mediocre 2.0

At least UA rebooked me next day no charge.

Had to cancel trip until next day due to initial flight so delayed I would have missed connection in Denver. Since UA claimed was weather related, I woulda been responsible for hotel.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

Wed, Mar 14
SDF
DEN
5h 38m
Tue, Mar 20
DEN
SDF
4h 57m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
PHL
YYZ
Good 6.0

On time

Small seats

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

SAT
PHL
Excellent 8.0

I took American's first direct flight between Philadelphia and San Antonio. It was a nice plane, good service, and amenities for a cost. Love that the plane had plugs!

DFW
SAN
Okay 5.3

Direct flight from desired origin to destination Boarding by zones

Uncomfortable, small, seat space with inadequate legroom. Lack of personal entertainment options. Paid extra for earlier boarding group which only benefited me by about 5 people. (NOT WORTH IT!) Lack of complimentary food options. (Pay for everything)

LAS
DFW
Excellent 8.0

Flight was punctual and service was good.

Gate change

Tue, Apr 17
SDF
DEN
7h 50m
Wed, Apr 18
DEN
SDF
8h 06m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
DTW
Excellent 10.0

Pls see above

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

MSP
CUN
Mediocre 2.0

nothing

They lost my luggage.

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

Wed, May 16
SDF
DEN
3h 00m
Wed, May 23
DEN
SDF
2h 40m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

TPA
LAS
Okay 4.3

Very reasonable price.

You literally have to pay for even the basic things, including for seats to recline. Cushion on seats thin and seats don't recline. 5hrs flight and No entertainment, no tv, no radio, no complimentary food...they offered a cup of water.

BUF
MCO
Good 7.3

Flight was great. Checkin etc was great

Wed, May 30
SDF
DEN
3h 00m
Wed, Jun 6
DEN
SDF
2h 40m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
CLT
Mediocre 3.3

The flight was ok

First of all the check in lady was rude and unprofessional. The company lost y luggage resulting in extra charges When I was looking for assistance mr Prince was extremely rude, rolling the eyes and not providing support, I was lost and seeking for guidance and I had to figure it out by myself

DEN
ORD
Excellent 9.6

They left me alone.

Fold down tables are tiny

TPA
LAS
Okay 4.3

Very reasonable price.

You literally have to pay for even the basic things, including for seats to recline. Cushion on seats thin and seats don't recline. 5hrs flight and No entertainment, no tv, no radio, no complimentary food...they offered a cup of water.

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

PHL
DEN
Mediocre 2.0

This is actually almost a funny question because Frontier is the worst Airlines well actually that's not true spirit is the worst Airlines the seats are uncomfortable it takes about an hour and a half to just put your bags and baggage drop and then when you get on the plane They don't serve you anything they have no entertainment your crowded in can't move people are rude worst hairlines ever

Every single thing

Wed, Jun 6
SDF
DEN
3h 00m
Wed, Jun 13
DEN
SDF
2h 40m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DCA
DEN
Excellent 8.0

Friendly staff

Didn't like I wasn't offered a cup of water and they nickel and dime you for EVERYTHING!

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

IAD
SAT
Mediocre 3.6

The crew was helpful and apologetic.

They purposefully understaffed the check in counter, which you have to use. They charge for every little thing, even carry on bags and snacks. The seats might as well be lawn chairs. They are so close together everyone onboard will die from head injuries if there's an accident. I'll fly Southwest from now on.

DEN
SFO
Mediocre 2.0

The crew was rude to the passengers. They charge form 9$ to 40$ for seat selection. Charge for a Carry on bag (anything that doesn't fit under your seat). The flights had maintenance issue, hence delayed. I will absolutely avoid traveling with frontier in the future.

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

Wed, Jul 25
SDF
DEN
2h 50m
Wed, Aug 1
DEN
SDF
2h 35m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 2.0

The crew was rude to the passengers. They charge form 9$ to 40$ for seat selection. Charge for a Carry on bag (anything that doesn't fit under your seat). The flights had maintenance issue, hence delayed. I will absolutely avoid traveling with frontier in the future.

BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

TPA
LAS
Okay 4.3

Very reasonable price.

You literally have to pay for even the basic things, including for seats to recline. Cushion on seats thin and seats don't recline. 5hrs flight and No entertainment, no tv, no radio, no complimentary food...they offered a cup of water.

PHL
DEN
Mediocre 2.0

This is actually almost a funny question because Frontier is the worst Airlines well actually that's not true spirit is the worst Airlines the seats are uncomfortable it takes about an hour and a half to just put your bags and baggage drop and then when you get on the plane They don't serve you anything they have no entertainment your crowded in can't move people are rude worst hairlines ever

Every single thing

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

Wed, May 9
SDF
DEN
7h 27m
Wed, May 16
DEN
SDF
2h 40m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 7
SDF
DEN
6h 10m
Tue, Apr 17
DEN
SDF
4h 50m
Trip: 11 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 13 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SDF
DEN
Mediocre 2.0

At least UA rebooked me next day no charge.

Had to cancel trip until next day due to initial flight so delayed I would have missed connection in Denver. Since UA claimed was weather related, I woulda been responsible for hotel.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

SDF
DEN
Excellent 10.0

I was very nervous, but the flight attendant made me feel at ease.

Wed, Apr 11
SDF
DEN
7h 23m
Sat, Apr 14
DEN
SDF
5h 05m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
LAS
DFW
Excellent 8.0

Flight was punctual and service was good.

Gate change

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

PHL
YYZ
Good 6.0

On time

Small seats

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

Wed, May 9
SDF
DEN
5h 58m
Tue, May 15
DEN
SDF
4h 50m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

MSP
CUN
Mediocre 2.0

nothing

They lost my luggage.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
DTW
Excellent 10.0

Pls see above

Fri, May 11
SDF
DEN
3h 00m
Wed, May 16
DEN
SDF
2h 40m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

DEN
ORD
Excellent 9.6

They left me alone.

Fold down tables are tiny

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

DCA
DEN
Excellent 8.0

Friendly staff

Didn't like I wasn't offered a cup of water and they nickel and dime you for EVERYTHING!

Tue, Apr 10
SDF
DEN
7h 50m
Tue, Apr 17
DEN
SDF
4h 50m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 13 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

SDF
DEN
Excellent 10.0

I was very nervous, but the flight attendant made me feel at ease.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

SDF
DEN
Okay 5.0

Quick boarding.

The plane was extremely small and antiquated. It was incredibly hot and uncomfortable. Before we took off someone in the first few rows was forced to move to the back for weight distribution purposes (which I did). Not a pleasant flight.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

Tue, May 8
SDF
DEN
5h 21m
Tue, May 15
DEN
SDF
6h 52m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
SDF
DEN
5h 11m
Thu, Apr 12
DEN
SDF
5h 05m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

PHL
YYZ
Good 6.0

On time

Small seats

DFW
SAN
Okay 5.3

Direct flight from desired origin to destination Boarding by zones

Uncomfortable, small, seat space with inadequate legroom. Lack of personal entertainment options. Paid extra for earlier boarding group which only benefited me by about 5 people. (NOT WORTH IT!) Lack of complimentary food options. (Pay for everything)

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

DFW
FLL
Excellent 8.0

No issues at all

N/A

Sat, May 12
SDF
DEN
3h 00m
Mon, May 14
DEN
SDF
2h 40m
Trip: 3 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
SAT
Mediocre 3.6

The crew was helpful and apologetic.

They purposefully understaffed the check in counter, which you have to use. They charge for every little thing, even carry on bags and snacks. The seats might as well be lawn chairs. They are so close together everyone onboard will die from head injuries if there's an accident. I'll fly Southwest from now on.

PHL
DEN
Mediocre 2.0

This is actually almost a funny question because Frontier is the worst Airlines well actually that's not true spirit is the worst Airlines the seats are uncomfortable it takes about an hour and a half to just put your bags and baggage drop and then when you get on the plane They don't serve you anything they have no entertainment your crowded in can't move people are rude worst hairlines ever

Every single thing

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

DEN
SFO
Mediocre 2.0

The crew was rude to the passengers. They charge form 9$ to 40$ for seat selection. Charge for a Carry on bag (anything that doesn't fit under your seat). The flights had maintenance issue, hence delayed. I will absolutely avoid traveling with frontier in the future.

Wed, May 9
SDF
DEN
7h 27m
Fri, May 11
DEN
SDF
2h 40m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
SDF
DEN
7h 51m
Mon, Apr 16
DEN
SDF
6h 43m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

MSP
CUN
Mediocre 2.0

nothing

They lost my luggage.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

Kentucky to Denver International Flight Information

Flights Arrive in Denver International
Flights Depart from Kentucky
Flight Price $138
Airlines Frontier, United, American Airlines, Delta
*
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