Which layover airport offers the lowest fares from Philadelphia to Denver?

Flights via Chicago (ORD) offer the lowest average round-trip price of $170.

Which layover airport has the shortest connection time from Philadelphia to Denver?

St. Louis (STL) has the shortest average layover time for this route: 2h 35m.

Which layover airport has the shortest travel time from Philadelphia to Denver?

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 7h 15m.

What is the most punctual flight time for Philadelphia to Denver flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What airlines fly to Denver?

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Denver from Philadelphia according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 8 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

How often are flights from Philadelphia to Denver delayed?

Historically, on average around 16% of flights between Philadelphia and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 163 minutes.

Which airline has the best punctuality record on Philadelphia to Denver flights?

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

How many flights depart from Philadelphia to Denver on average per day?

As of November 2025, 9 flights take off from Philadelphia and land in Denver each day. The most common flight departure time for this route is 8:00PM, with 44% of daily flights taking off at noon.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airport is the most popular layover for flights between Philadelphia and Denver?

St. Louis (STL) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Philadelphia to Denver on average per week?

The number of flights available between Philadelphia and Denver is 64 per week as of November 2025. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.

What is the cheapest airline that flies from Philadelphia to Denver Intl?

Southwest is the most popular carrier operating from Philadelphia to Denver Intl

What are the benefits of the different airports in Philadelphia and Denver?

Both Philadelphia International Airport and Denver International Airport are the only airports available for those making trips from Philadelphia to Denver. Philadelphia International Airport offers a number of different parking options for both long and short-term parking. The airport also has seven different charging stations that are capable of charging up to 14 electric vehicles at any time. The airport offers programs designed to help passengers with limited mobility, such as their AIRA service to help connect low vision and blind passengers to remote agents. They also offer the Sorenson BuzzCard app that enhances communication at the airport by allowing passengers to type a message and show it to the person with whom they are communicating. Denver International Airport also offers plenty of different parking options for short and long-term stays, plus they offer 27 different spaces located very close to the terminal building specifically for hybrid vehicles. If you are traveling with children through the Denver International Airport, they offer a children's play area that is on the mezzanine level of Concourse B.

Which airlines fly direct from Philadelphia to Denver?

When searching for flights from Philadelphia to Denver, you'll be happy to learn that there are several airlines that offer nonstop flights between these two cities. Frontier Airlines, United Airlines, American Airlines, and Southwest Airlines all offer nonstop service between Philadelphia International Airport (PHL) and Denver International Airport (DEN), and these are all great examples of airlines offering cheap flights from Philadelphia to Denver. Spirit Airlines also offers a one-stop flight that has a layover at Fort Lauderdale (FLL), Frontier Airlines has a one-stop flight that has a layover at Orlando (MCO), and United Airlines offers a one-stop flight with a layover at Houston George Bush Intercontinental (IAH). You can also get Philadelphia to Denver flights via American Airlines that have a layover at either Charlotte Douglas (CLT) or Orlando.

What is the best way to get in and out of airports in Philadelphia and Denver?

When you are traveling from Philadelphia to Denver, one of the most convenient ways to get to the Philadelphia International Airport from downtown Philadelphia is aboard the SEPTA light rail Airport Line train. Another convenient option is to travel on the SEPTA Line 37 bus that will take you from downtown Philadelphia to the Philadelphia International Airport. There are also plenty of taxis in downtown Philadelphia to make the trip to the airport. Once you arrive at Denver International Airport the Regional Transportation District light rail Train A can take you from the airport to downtown Denver. Another option is to take the local airport bus from Denver Airport Station Gate Number 9 to the Nine Mile Station Gate H and then take either route 83L to 83D to downtown Denver. If you prefer to travel by car, there are plenty of taxi and rideshare car options available at the airport to conveniently take you into Denver. Which cities can you get to from Denver International Airport? One of the best things about traveling on one-way flights from Philadelphia to Denver is the location of Denver International Airport and how convenient it is for a number of other cities in Colorado. These include suburbs around the city of Denver such as Aurora, Littleton, and Lakewood. This is also a great airport to use if you are traveling to smaller Colorado towns such as Boulder, Loveland, Fort Collins, Colorado Springs, or Pueblo. This even makes a good airport choice if you want to go to the cities of Cheyenne and Laramie in Wyoming.

When did momondo last update prices for flights from Philadelphia Airport to Denver Intl Airport?

Prices for flights from Philadelphia Airport to Denver Intl Airport refresh daily.

How many operators does momondo search for flights from Philadelphia Airport to Denver Intl Airport?

There are 8 operators available for flights from Philadelphia Airport to Denver Intl Airport as of November 2025.

How old do you have to be to fly from Philadelphia Airport to Denver Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$84 Cheap Flights from Philadelphia to Denver in 2025/26

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Enter your travel dates to find the best prices.

5:05 am - 9:10 amPHL-DEN

30h 05m1 stop

11:59 pm - 5:31 amDEN-PHL

3h 32mnonstop

$144Frontier

Find Deal

sam., déc. 13 - lun., déc. 15

10:00 pm - 8:13 pmPHL-DEN

24h 13m1 stop

6:11 pm - 8:37 amDEN-PHL

12h 26m1 stop

$145Frontier

Find Deal

mar., déc. 16 - jeu., déc. 18

10:55 am - 8:40 pmPHL-DEN

11h 45m1 stop

12:11 pm - 11:20 pmDEN-PHL

9h 09m1 stop

$146Frontier

Find Deal

ven., déc. 5 - lun., déc. 8

10:35 am - 9:49 pmPHL-DEN

13h 14m1 stop

6:00 am - 12:13 amDEN-PHL

16h 13m1 stop

$147Frontier

Find Deal

lun., déc. 15 - ven., déc. 19

6:40 am - 9:03 amPHL-DEN

4h 23mnonstop

9:58 am - 3:29 pmDEN-PHL

3h 31mnonstop

$148Frontier

Find Deal

ven., févr. 27 - lun., mars 2

5:40 pm - 12:39 pmPHL-DEN

20h 59m1 stop

11:25 pm - 10:47 amDEN-PHL

9h 22m1 stop

$149Frontier

Find Deal

jeu., févr. 26 - dim., mars 1

2:06 pm - 11:04 pmPHL-DEN

10h 58m1 stop

12:59 am - 9:47 amDEN-PHL

6h 48m1 stop

$150Frontier

Find Deal

sam., déc. 6 - mar., déc. 9

8:36 pm - 10:59 pmPHL-DEN

4h 23mnonstop

12:59 am - 5:17 pmDEN-PHL

14h 18m2 stops

$151Multiple Airlines

Find Deal

ven., déc. 5 - dim., déc. 7

10:00 pm - 11:04 pmPHL-DEN

27h 04m1 stop

11:00 pm - 2:44 pmDEN-PHL

13h 44m2 stops

$152Multiple Airlines

Find Deal

jeu., déc. 4 - lun., déc. 8

6:15 am - 1:16 pmPHL-DEN

9h 01m1 stop

12:59 am - 2:44 pmDEN-PHL

11h 45m2 stops

$153Multiple Airlines

Find Deal

lun., déc. 8 - mar., déc. 9

Frontier flights from Philadelphia to Denver

Our best Frontier deals on Philadelphia to Denver flight tickets

Frontier

Dec 13

PHL5:05 amPhiladelphia

30h 05m

1 stop

DEN9:10 amDenver Intl

Dec 15

DEN11:59 pmDenver Intl

3h 32m

PHL5:31 amPhiladelphia

$144

Find similar

Frontier

Dec 16

PHL10:00 pmPhiladelphia

24h 13m

1 stop

DEN8:13 pmDenver Intl

Dec 18

DEN6:11 pmDenver Intl

12h 26m

1 stop

PHL8:37 amPhiladelphia

$145

Find similar

Frontier

Dec 5

PHL10:55 amPhiladelphia

11h 45m

1 stop

DEN8:40 pmDenver Intl

Dec 8

DEN12:11 pmDenver Intl

9h 09m

1 stop

PHL11:20 pmPhiladelphia

$146

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

sam. 12/13

5:05 am-9:10 am

1 stop30h 05m

Denver Intl

lun. 12/15

11:59 pm-5:31 am

Nonstop3h 32m

$144

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

mar. 12/16

10:00 pm-8:13 pm

1 stop24h 13m

Denver Intl

jeu. 12/18

6:11 pm-8:37 am

1 stop12h 26m

$145

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

ven. 12/5

10:55 am-8:40 pm

1 stop11h 45m

Denver Intl

lun. 12/8

12:11 pm-11:20 pm

1 stop9h 09m

$146

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

lun. 12/15

10:35 am-9:49 pm

1 stop13h 14m

Denver Intl

ven. 12/19

6:00 am-12:13 am

1 stop16h 13m

$147

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

ven. 2/27

6:40 am-9:03 am

Nonstop4h 23m

Denver Intl

lun. 3/2

9:58 am-3:29 pm

Nonstop3h 31m

$148

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

jeu. 2/26

5:40 pm-12:39 pm

1 stop20h 59m

Denver Intl

dim. 3/1

11:25 pm-10:47 am

1 stop9h 22m

$149

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

sam. 12/6

2:06 pm-11:04 pm

1 stop10h 58m

Denver Intl

mar. 12/9

12:59 am-9:47 am

1 stop6h 48m

$150

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

ven. 12/5

8:36 pm-10:59 pm

Nonstop4h 23m

Denver Intl

dim. 12/7

12:59 am-5:17 pm

2 stops14h 18m

$151

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

jeu. 12/4

10:00 pm-11:04 pm

1 stop27h 04m

Denver Intl

lun. 12/8

11:00 pm-2:44 pm

2 stops13h 44m

$152

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

lun. 12/8

6:15 am-1:16 pm

1 stop9h 01m

Denver Intl

mar. 12/9

12:59 am-2:44 pm

2 stops11h 45m

$153

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How to get the cheapest flight ticket from Philadelphia to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Philadelphia is in August. Flight prices, which tend to average around $278, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until July to fly from Philadelphia, when ticket prices are also cheap, with an average price of $280.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $345. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $402.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $278. Flights in the afternoon are often more expensive with an average ticket price of $442.

What is the cheapest Philadelphia to Denver Intl flight route?

Fly from Philadelphia to Denver Intl for the best Philadelphia - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $315 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Philadelphia for as low as $259 on momondo.

What cabin class options are available on Philadelphia to Denver Intl flights?

There are 4 cabin classes available to choose from on Philadelphia to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Denver flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Denver.

How have Philadelphia to Denver flight prices changed over time?

As of November 2025, prices for Philadelphia to Denver flights are approximately 25% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Denver (PHL to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Denver

Best Price Found	$163
Fastest flight time	4h 10m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Philadelphia in the past 72 hours is $163. The best round-trip flight deal from Philadelphia to Denver found on momondo in the last 72 hours is $250.

The fastest flight from Philadelphia to Denver takes 4h 10m

Direct flights go from Philadelphia to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

How far is Philadelphia to Denver Intl by plane?
The distance between Philadelphia and Denver Intl is about 1574.0 mi. A reasonable flight in good conditions will take 4h 22m.
When did momondo last update prices for flights from Philadelphia Airport to Denver Intl Airport?
Prices for flights from Philadelphia Airport to Denver Intl Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to Denver Intl Airport?
There are 8 operators available for flights from Philadelphia Airport to Denver Intl Airport as of November 2025.
How old do you have to be to fly from Philadelphia Airport to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Philadelphia to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Philadelphia to Denver is Boeing 737-800 (20.53% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (17.00%), Airbus A321-100/200 (11.68%), and Boeing 737-800 Passenger/BBJ2 (winglets) (10.94%).
What is the most popular airline from Philadelphia to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Philadelphia to Denver is Frontier (37% of total bookings). The next most popular airlines are American Airlines (27%), United Airlines (18%), and Southwest (17%).

Best airlines flying from Philadelphia to Denver

Compare and see reviews for airlines that fly from Philadelphia to Denver with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $106	Free Cancellation	Rating 7.2 700 reviews	Search Allegiant Air flights
Frontier	PriceFrom $118	Free Cancellation	Rating 5.8 3,104 reviews	Search Frontier flights
Delta	PriceFrom $134	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
Sun Country Air	PriceFrom $177	Free Cancellation	Rating 6.9 334 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $191	Free Cancellation	Rating 7.4 9,027 reviews	Search United Airlines flights
Southwest	PriceFrom $197	Free Cancellation	Rating 8.0 4,249 reviews	Search Southwest flights
American Airlines	PriceFrom $201	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
JetBlue	PriceFrom $207	Free Cancellation	Rating 7.2 2,902 reviews	Search JetBlue flights

Southwest Flights From Philadelphia to Denver
The lowest priced Southwest flight from Philadelphia to Denver from the last 72 hours was $197. Generally, Southwest has 3 flights on this route every week with an average price of $343. Southwest is rated 8.0/10 by our users.
United Airlines Flights From Philadelphia to Denver
United Airlines is also a popular choice for this route. United Airlines flight deals for Philadelphia to Denver start from as low as $191 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $416. United Airlines operates 19 flights to Denver from Philadelphia in an average week. Users have rated it 7.4/10 across 9,029 reviews.

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Can I find flights from Philadelphia to Denver with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to Denver flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Philadelphia.

I’m not ready to book a flight from Philadelphia to Denver right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Denver from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Philadelphia to Denver from $84

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Denver departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Philadelphia to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $345. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $402.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $278. Flights in the afternoon are often more expensive with an average ticket price of $442.

What is the cheapest Philadelphia to Denver Intl flight route?

Fly from Philadelphia to Denver Intl for the best Philadelphia - Denver Intl flight prices

How far in advance should I book a flight to Denver?

What cabin class options are available on Philadelphia to Denver Intl flights?

There are 4 cabin classes available to choose from on Philadelphia to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Denver flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Denver.

How have Philadelphia to Denver flight prices changed over time?

As of November 2025, prices for Philadelphia to Denver flights are approximately 25% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Philadelphia to Denver Intl?

Southwest is the most popular carrier operating from Philadelphia to Denver Intl

What airlines fly to Denver?

How often are flights from Philadelphia to Denver delayed?

Historically, on average around 16% of flights between Philadelphia and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 163 minutes.

What is the most punctual flight time for Philadelphia to Denver flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Philadelphia to Denver flights?

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

Which airport is the most popular layover for flights between Philadelphia and Denver?

St. Louis (STL) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Philadelphia to Denver?

Flights via Chicago (ORD) offer the lowest average round-trip price of $170.

Which layover airport has the shortest travel time from Philadelphia to Denver?

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 7h 15m.

Which layover airport has the shortest connection time from Philadelphia to Denver?

St. Louis (STL) has the shortest average layover time for this route: 2h 35m.

How many flights depart from Philadelphia to Denver on average per day?

As of November 2025, 9 flights take off from Philadelphia and land in Denver each day. The most common flight departure time for this route is 8:00PM, with 44% of daily flights taking off at noon.

How many flights depart from Philadelphia to Denver on average per week?

The number of flights available between Philadelphia and Denver is 64 per week as of November 2025. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.

When to book flights from Philadelphia to Denver

Cheap Philadelphia to Denver (PHL to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Denver

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

How far is Philadelphia to Denver Intl by plane?

When did momondo last update prices for flights from Philadelphia Airport to Denver Intl Airport?

How many operators does momondo search for flights from Philadelphia Airport to Denver Intl Airport?

How old do you have to be to fly from Philadelphia Airport to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

What is the most popular plane model from Philadelphia to Denver?

What is the most popular airline from Philadelphia to Denver?

Best airlines flying from Philadelphia to Denver

Compare and see reviews for airlines that fly from Philadelphia to Denver with momondo

Southwest Flights From Philadelphia to Denver

United Airlines Flights From Philadelphia to Denver

Traveling to a place near Denver?

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Denver?