Find Cheap Flights from Denver International to Philadelphia (DEN - PHL)

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Wed 2/21
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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
June
Most popular time to fly
5%
expected price increase
Average Price:
$306
(avg. price over the last 2 weeks)
Good Deal:
$198
or less (round trip)

When to Book Flights from Denver International to Philadelphia

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $197 or less.
The cheapest flight from Denver International to Philadelphia was found 29 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is October.
Morning departure is around 3% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Denver International to Philadelphia Flights

How long does a flight from Denver International to Philadelphia take?
An average nonstop flight takes 3h 31m, covering a distance of 1554 miles.
How many flights are there between Denver International and Philadelphia?
There are 114 (nonstop) flights between Denver International and Philadelphia per week, averaging 16 per day.
Which airlines provide the cheapest flights from Denver International to Philadelphia?
In the past 3 days, the cheapest round-trip tickets were found on Spirit Airlines ($118), Frontier ($144) and Multiple Airlines ($147).
Do I need a passport to fly between Denver International and Philadelphia?
No.
Which airlines fly most frequently between Denver International and Philadelphia?
United (6 times daily), Southwest (5 times daily), American Airlines (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Denver International to Philadelphia?
For Denver International to Philadelphia, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Philadelphia back to Denver International, the best deals are generally found on Tuesday, with Wednesday being the most expensive.

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

Airports
Origin
Denver
$118
only
$118
Destination
Philadelphia
$118
only
$118
Tue, Feb 27
DEN
PHL
9h 12m
Tue, Mar 6
PHL
DEN
12h 53m
Trip: 8 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 52841 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
MSP
MCO
Mediocre 2.3

NOTHING

VERY small aisle, seats were small and very uncomfortable. there was no entertainment and the extra fees for bags and even to have a drink of water or soda on the plane is ridiculous. I will not be flying spirit airlines again.

MCO
BDL
Good 6.3

Easy boarding, printing boarding passes,nice flight attendants, early arrival times, clean

The chairs don’t recline and very little leg room. Couldn’t go on a flight over 3 hours on spirit

TPA
BDL
Excellent 10.0

Flights arrived early

DTW
MSY
Okay 4.6

Please at least give free cups of water. Every time I fly, someone needs a cup if water.

EWR
MYR
Excellent 10.0

With a receipt and they went above and beyond to locate me

Tue, Mar 6
DEN
PHL
3h 31m
Fri, Mar 16
PHL
DEN
4h 22m
Trip: 10 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Excellent 8.0

The crew on this flight really saves the airline. They were hilarious and made the incredibly uncomfortable seats (coupled with a bumpy flight) tolerable for the duration of the flight.

Seats are terribly uncomfortable.

DEN
PHL
Mediocre 2.0

Sure cheap tickets until you check in and suddenly it's more expensive than other airlines. Everything is extra. My first and last time with Frontier.

DEN
PHL
Mediocre 3.6

Not much

Almost everything

DEN
PHL
Good 6.0

Nice crew.

Our flight was supposed to leave at 6:40 PM but was bumped back until after 8 PM due to storms in the landing city however two other airlines in the same airport heading to the same city left on time.

DEN
PHL
Mediocre 2.6

4 out of 5 of my past frontier flights has been delayed. Never an explanation as to why. Very disappointed as usual in this airline.

Seats are horribly uncomfortable, the temperature in the cabin was much too cold.

Wed, Feb 28
DEN
PHL
9h 12m
Sun, Mar 4
PHL
DEN
4h 22m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 28
DEN
PHL
9h 12m
Wed, Mar 7
PHL
DEN
12h 53m
Trip: 8 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 52841 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
MCO
MSP
Okay 5.3

decent size plane with wide walking aisle, friendly staff

I will not fly the airline again due to the cheap quality seats, discomfort and lack of any entertainment. not to mention all the additional costs/fees they have separated from the cost of the flight.

DTW
MSY
Okay 4.6

Please at least give free cups of water. Every time I fly, someone needs a cup if water.

TPA
BDL
Excellent 10.0

Flights arrived early

MSY
MCO
Mediocre 3.6

We landed.

No free drinks available, not even water. Carry-on size limit is smaller than other airlines, which is deceptive. We sat on the tarmac waiting for another plane to move for 30 minutes after we landed.

EWR
MYR
Excellent 10.0

With a receipt and they went above and beyond to locate me

Tue, Apr 3
DEN
PHL
3h 31m
Thu, Apr 5
PHL
DEN
4h 22m
Trip: 3 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Mediocre 2.6

First, late boarding. Second......Over fueled 10,000 lbs too much. Yes, that was 10,000 lbs! Had to wait for truck to come and defuel. Sat on plane over 2 hours before take off. Third did not know I would have to pay for bag and buy a seat. Won't be flying Frontier again.

DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

DEN
PHL
Good 6.0

Nice crew.

Our flight was supposed to leave at 6:40 PM but was bumped back until after 8 PM due to storms in the landing city however two other airlines in the same airport heading to the same city left on time.

DEN
PHL
Okay 4.6

Boarding was quick and efficient. Crew was very nice.

Seats were extremely uncomfortable and didn't allow for sleep. Also extra fees for carry on luggage and food and drink are not necessary these should be free

DEN
PHL
Excellent 10.0

Seat 2C was very comfortable with a lot of legroom. Worth the extra cost.

Not issues to report. Very nice flight back to Philly.

Fri, Mar 2
DEN
PHL
9h 12m
Tue, Mar 6
PHL
DEN
8h 23m
Trip: 5 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 52841 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
MCO
MSP
Okay 5.3

decent size plane with wide walking aisle, friendly staff

I will not fly the airline again due to the cheap quality seats, discomfort and lack of any entertainment. not to mention all the additional costs/fees they have separated from the cost of the flight.

MCO
BDL
Good 6.3

Easy boarding, printing boarding passes,nice flight attendants, early arrival times, clean

The chairs don’t recline and very little leg room. Couldn’t go on a flight over 3 hours on spirit

TPA
BDL
Excellent 10.0

Flights arrived early

IAH
MSY
Good 6.3

cheap

Flight options were terrible

MCO
SJU
Okay 4.0

Timely concienced

Awful seating Expensive food and old No complimentary beverages nor snacks 40 pounds for checkin bags ridicule Hidden costs First time traveling and prices shown on internet raised considerably after all extra charges

Tue, Apr 24
DEN
PHL
3h 42m
Wed, May 23
PHL
DEN
4h 11m
Trip: 30 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

DEN
PHL
Okay 4.6

Boarding was quick and efficient. Crew was very nice.

Seats were extremely uncomfortable and didn't allow for sleep. Also extra fees for carry on luggage and food and drink are not necessary these should be free

DEN
PHL
Excellent 8.0

The crew on this flight really saves the airline. They were hilarious and made the incredibly uncomfortable seats (coupled with a bumpy flight) tolerable for the duration of the flight.

Seats are terribly uncomfortable.

DEN
PHL
Excellent 10.0

Seat 2C was very comfortable with a lot of legroom. Worth the extra cost.

Not issues to report. Very nice flight back to Philly.

DEN
PHL
Good 6.0

Nice crew.

Our flight was supposed to leave at 6:40 PM but was bumped back until after 8 PM due to storms in the landing city however two other airlines in the same airport heading to the same city left on time.

Wed, Feb 21
DEN
PHL
9h 12m
Wed, Mar 7
PHL
DEN
12h 53m
Trip: 15 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 52841 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
MSP
MCO
Mediocre 2.3

NOTHING

VERY small aisle, seats were small and very uncomfortable. there was no entertainment and the extra fees for bags and even to have a drink of water or soda on the plane is ridiculous. I will not be flying spirit airlines again.

MCO
MSP
Okay 5.3

decent size plane with wide walking aisle, friendly staff

I will not fly the airline again due to the cheap quality seats, discomfort and lack of any entertainment. not to mention all the additional costs/fees they have separated from the cost of the flight.

TPA
BDL
Excellent 10.0

Flights arrived early

MCO
SJU
Okay 4.0

Timely concienced

Awful seating Expensive food and old No complimentary beverages nor snacks 40 pounds for checkin bags ridicule Hidden costs First time traveling and prices shown on internet raised considerably after all extra charges

MSY
MCO
Mediocre 3.6

We landed.

No free drinks available, not even water. Carry-on size limit is smaller than other airlines, which is deceptive. We sat on the tarmac waiting for another plane to move for 30 minutes after we landed.

Mon, Apr 30
DEN
PHL
3h 32m
Tue, May 15
PHL
DEN
4h 11m
Trip: 16 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Mediocre 2.0

Sure cheap tickets until you check in and suddenly it's more expensive than other airlines. Everything is extra. My first and last time with Frontier.

DEN
PHL
Mediocre 3.6

Not much

Almost everything

DEN
PHL
Okay 4.6

Boarding was quick and efficient. Crew was very nice.

Seats were extremely uncomfortable and didn't allow for sleep. Also extra fees for carry on luggage and food and drink are not necessary these should be free

DEN
PHL
Good 6.0

Crew was nice

Being charged 45 dollars for a small carry on each way adding $90 to my trip! Plus I was in row 5 where the guy in front of me could recline yet I could not very uncomfortable seats

DEN
PHL
Excellent 10.0

Seat 2C was very comfortable with a lot of legroom. Worth the extra cost.

Not issues to report. Very nice flight back to Philly.

Thu, May 10
DEN
PHL
8h 57m
Sun, May 13
PHL
DEN
4h 13m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 6
DEN
PHL
3h 31m
Sun, Mar 11
PHL
DEN
4h 22m
Trip: 6 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Mediocre 2.0

After being delayed on the first leg of my trip, we arrived in Denver being told to go to a particular gate. Once there we were told it was moved to another gate. This happened a total of 4 times! Again the flight was delayed. The pilot/co pilot made a negative comment on the PA about the airline after apologizing for the confusion. I was not given the opportunity to choose my seat. When I checked in, I asked to change from the middle seat I was assigned to, to a aisle seat to accommodate my long legs and severe knee arthritis. The attendant at the desk looked at my boarding pass and exclaimed "well, your flying ECONOMY so I guess you'll just have to deal with it". Drinks that are complimentary on Alaska (soft drinks, juice , water etc.) were charged for. The attendants completely skipped my row and we were not offered anything. The attendant did provide me a diet cola at no cost when I brought it to her attention. All in all a miserable trip home, in such contrast to our flight there on Alaska Airlines at the same cost.

DEN
PHL
Good 6.0

Crew was nice

Being charged 45 dollars for a small carry on each way adding $90 to my trip! Plus I was in row 5 where the guy in front of me could recline yet I could not very uncomfortable seats

DEN
PHL
Mediocre 2.6

First, late boarding. Second......Over fueled 10,000 lbs too much. Yes, that was 10,000 lbs! Had to wait for truck to come and defuel. Sat on plane over 2 hours before take off. Third did not know I would have to pay for bag and buy a seat. Won't be flying Frontier again.

DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

DEN
PHL
Okay 4.6

Boarding was quick and efficient. Crew was very nice.

Seats were extremely uncomfortable and didn't allow for sleep. Also extra fees for carry on luggage and food and drink are not necessary these should be free

Mon, Mar 26
DEN
PHL
9h 12m
Tue, Apr 3
PHL
DEN
4h 22m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 28
DEN
PHL
3h 34m
Sat, Mar 3
PHL
DEN
4h 22m
Trip: 4 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Mediocre 2.6

First, late boarding. Second......Over fueled 10,000 lbs too much. Yes, that was 10,000 lbs! Had to wait for truck to come and defuel. Sat on plane over 2 hours before take off. Third did not know I would have to pay for bag and buy a seat. Won't be flying Frontier again.

DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

DEN
PHL
Good 6.0

Crew was nice

Being charged 45 dollars for a small carry on each way adding $90 to my trip! Plus I was in row 5 where the guy in front of me could recline yet I could not very uncomfortable seats

DEN
PHL
Excellent 10.0

Seat 2C was very comfortable with a lot of legroom. Worth the extra cost.

Not issues to report. Very nice flight back to Philly.

DEN
PHL
Excellent 8.0

The crew on this flight really saves the airline. They were hilarious and made the incredibly uncomfortable seats (coupled with a bumpy flight) tolerable for the duration of the flight.

Seats are terribly uncomfortable.

Thu, Mar 1
DEN
PHL
3h 31m
Fri, Mar 9
PHL
DEN
4h 22m
Trip: 9 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

DEN
PHL
Good 7.6

Very smooth flight, nice crew

seats super uncomfortable, so many extra fees

DEN
PHL
Mediocre 3.6

Not much

Almost everything

DEN
PHL
Excellent 8.0

The crew on this flight really saves the airline. They were hilarious and made the incredibly uncomfortable seats (coupled with a bumpy flight) tolerable for the duration of the flight.

Seats are terribly uncomfortable.

DEN
PHL
Good 6.0

Crew was nice

Being charged 45 dollars for a small carry on each way adding $90 to my trip! Plus I was in row 5 where the guy in front of me could recline yet I could not very uncomfortable seats

Fri, Mar 2
DEN
PHL
3h 31m
Mon, Mar 5
PHL
DEN
4h 22m
Trip: 4 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

DEN
PHL
Okay 4.6

Boarding was quick and efficient. Crew was very nice.

Seats were extremely uncomfortable and didn't allow for sleep. Also extra fees for carry on luggage and food and drink are not necessary these should be free

DEN
PHL
Mediocre 2.6

4 out of 5 of my past frontier flights has been delayed. Never an explanation as to why. Very disappointed as usual in this airline.

Seats are horribly uncomfortable, the temperature in the cabin was much too cold.

DEN
PHL
Mediocre 2.0

After being delayed on the first leg of my trip, we arrived in Denver being told to go to a particular gate. Once there we were told it was moved to another gate. This happened a total of 4 times! Again the flight was delayed. The pilot/co pilot made a negative comment on the PA about the airline after apologizing for the confusion. I was not given the opportunity to choose my seat. When I checked in, I asked to change from the middle seat I was assigned to, to a aisle seat to accommodate my long legs and severe knee arthritis. The attendant at the desk looked at my boarding pass and exclaimed "well, your flying ECONOMY so I guess you'll just have to deal with it". Drinks that are complimentary on Alaska (soft drinks, juice , water etc.) were charged for. The attendants completely skipped my row and we were not offered anything. The attendant did provide me a diet cola at no cost when I brought it to her attention. All in all a miserable trip home, in such contrast to our flight there on Alaska Airlines at the same cost.

DEN
PHL
Mediocre 2.0

Sure cheap tickets until you check in and suddenly it's more expensive than other airlines. Everything is extra. My first and last time with Frontier.

Sat, Mar 3
DEN
PHL
3h 31m
Wed, Mar 7
PHL
DEN
4h 22m
Trip: 5 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Mediocre 2.6

4 out of 5 of my past frontier flights has been delayed. Never an explanation as to why. Very disappointed as usual in this airline.

Seats are horribly uncomfortable, the temperature in the cabin was much too cold.

DEN
PHL
Excellent 8.0

The crew on this flight really saves the airline. They were hilarious and made the incredibly uncomfortable seats (coupled with a bumpy flight) tolerable for the duration of the flight.

Seats are terribly uncomfortable.

DEN
PHL
Mediocre 2.6

First, late boarding. Second......Over fueled 10,000 lbs too much. Yes, that was 10,000 lbs! Had to wait for truck to come and defuel. Sat on plane over 2 hours before take off. Third did not know I would have to pay for bag and buy a seat. Won't be flying Frontier again.

DEN
PHL
Okay 4.6

Boarding was quick and efficient. Crew was very nice.

Seats were extremely uncomfortable and didn't allow for sleep. Also extra fees for carry on luggage and food and drink are not necessary these should be free

DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

Thu, Mar 8
DEN
PHL
3h 31m
Sun, Mar 18
PHL
DEN
4h 22m
Trip: 10 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Good 6.0

Crew was nice

Being charged 45 dollars for a small carry on each way adding $90 to my trip! Plus I was in row 5 where the guy in front of me could recline yet I could not very uncomfortable seats

DEN
PHL
Mediocre 2.6

First, late boarding. Second......Over fueled 10,000 lbs too much. Yes, that was 10,000 lbs! Had to wait for truck to come and defuel. Sat on plane over 2 hours before take off. Third did not know I would have to pay for bag and buy a seat. Won't be flying Frontier again.

DEN
PHL
Excellent 10.0

Seat 2C was very comfortable with a lot of legroom. Worth the extra cost.

Not issues to report. Very nice flight back to Philly.

DEN
PHL
Good 7.6

Very smooth flight, nice crew

seats super uncomfortable, so many extra fees

DEN
PHL
Mediocre 2.0

After being delayed on the first leg of my trip, we arrived in Denver being told to go to a particular gate. Once there we were told it was moved to another gate. This happened a total of 4 times! Again the flight was delayed. The pilot/co pilot made a negative comment on the PA about the airline after apologizing for the confusion. I was not given the opportunity to choose my seat. When I checked in, I asked to change from the middle seat I was assigned to, to a aisle seat to accommodate my long legs and severe knee arthritis. The attendant at the desk looked at my boarding pass and exclaimed "well, your flying ECONOMY so I guess you'll just have to deal with it". Drinks that are complimentary on Alaska (soft drinks, juice , water etc.) were charged for. The attendants completely skipped my row and we were not offered anything. The attendant did provide me a diet cola at no cost when I brought it to her attention. All in all a miserable trip home, in such contrast to our flight there on Alaska Airlines at the same cost.

Tue, Apr 10
DEN
PHL
3h 42m
Sat, Apr 14
PHL
DEN
4h 18m
Trip: 5 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Good 7.6

Very smooth flight, nice crew

seats super uncomfortable, so many extra fees

DEN
PHL
Good 6.0

Nice crew.

Our flight was supposed to leave at 6:40 PM but was bumped back until after 8 PM due to storms in the landing city however two other airlines in the same airport heading to the same city left on time.

DEN
PHL
Mediocre 2.6

4 out of 5 of my past frontier flights has been delayed. Never an explanation as to why. Very disappointed as usual in this airline.

Seats are horribly uncomfortable, the temperature in the cabin was much too cold.

DEN
PHL
Good 6.0

Crew was nice

Being charged 45 dollars for a small carry on each way adding $90 to my trip! Plus I was in row 5 where the guy in front of me could recline yet I could not very uncomfortable seats

DEN
PHL
Mediocre 2.6

First, late boarding. Second......Over fueled 10,000 lbs too much. Yes, that was 10,000 lbs! Had to wait for truck to come and defuel. Sat on plane over 2 hours before take off. Third did not know I would have to pay for bag and buy a seat. Won't be flying Frontier again.

Tue, Apr 17
DEN
PHL
3h 42m
Sun, Apr 22
PHL
DEN
4h 18m
Trip: 6 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Good 6.0

Nice crew.

Our flight was supposed to leave at 6:40 PM but was bumped back until after 8 PM due to storms in the landing city however two other airlines in the same airport heading to the same city left on time.

DEN
PHL
Mediocre 2.6

4 out of 5 of my past frontier flights has been delayed. Never an explanation as to why. Very disappointed as usual in this airline.

Seats are horribly uncomfortable, the temperature in the cabin was much too cold.

DEN
PHL
Mediocre 2.0

Sure cheap tickets until you check in and suddenly it's more expensive than other airlines. Everything is extra. My first and last time with Frontier.

DEN
PHL
Mediocre 3.6

Not much

Almost everything

DEN
PHL
Good 7.5

At some point my stroller was lost and never recovered - it's a $300 stroller and they are offering $75. Hopefully I can find a one-year old receipt somewhere and get a little more reimbursement :(

Tue, Apr 24
DEN
PHL
3h 42m
Sun, May 27
PHL
DEN
4h 13m
Trip: 34 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 203 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
PHL
Excellent 8.0

The crew on this flight really saves the airline. They were hilarious and made the incredibly uncomfortable seats (coupled with a bumpy flight) tolerable for the duration of the flight.

Seats are terribly uncomfortable.

DEN
PHL
Excellent 10.0

Seat 2C was very comfortable with a lot of legroom. Worth the extra cost.

Not issues to report. Very nice flight back to Philly.

DEN
PHL
Good 6.0

Nice crew.

Our flight was supposed to leave at 6:40 PM but was bumped back until after 8 PM due to storms in the landing city however two other airlines in the same airport heading to the same city left on time.

DEN
PHL
Mediocre 2.0

Sure cheap tickets until you check in and suddenly it's more expensive than other airlines. Everything is extra. My first and last time with Frontier.

DEN
PHL
Mediocre 2.6

4 out of 5 of my past frontier flights has been delayed. Never an explanation as to why. Very disappointed as usual in this airline.

Seats are horribly uncomfortable, the temperature in the cabin was much too cold.

Show more results

Denver International to Philadelphia Flight Information

Avg. Flight Duration 3h 56m
Flights Arrive in Philadelphia
Flights Depart from Denver International
Flight Price $118
Distance 1554 miles
Airlines Spirit Airlines, Frontier
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.