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Cheap flights from Philadelphia to Denver from $44

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 2/15. 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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Find the cheapest flights from Philadelphia to Denver

Cheap round-trip flights

These are some of the best round-trip flight deals from Philadelphia to Denver that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Philadelphia to Denver.

Cheap last minute flights

Planning a quick getaway from Philadelphia to Denver? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Denver, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Philadelphia to Denver

Find recent round-trip train or bus tickets from Philadelphia to Denver.

All round-trip flight deals from Philadelphia to Denver

The cheapest plane tickets from Philadelphia to Denver found on KAYAK recently.
7:34 pm - 10:09 pmPHL-DEN
4h 35mnonstop
6:00 am - 11:39 amDEN-PHL
3h 39mnonstop
$91Frontier
Find Deal
Sat, Feb 15 - Thu, Feb 20
7:34 pm - 10:09 pmPHL-DEN
4h 35mnonstop
8:53 pm - 11:26 amDEN-PHL
12h 33m1 stop
$99Frontier
Find Deal
Sat, Feb 15 - Sat, Feb 22
12:30 pm - 10:50 pmPHL-DEN
12h 20m1 stop
6:50 pm - 10:16 amDEN-PHL
13h 26m1 stop
Sat, Feb 15 - Thu, Feb 20
4:35 pm - 7:00 pmPHL-DEN
4h 25mnonstop
5:45 pm - 11:15 pmDEN-PHL
3h 30mnonstop
$191Southwest
Find Deal
Fri, Feb 21 - Tue, Feb 25
8:01 am - 10:30 amPHL-DEN
4h 29mnonstop
5:59 pm - 11:35 pmDEN-PHL
3h 36mnonstop
$204United Airlines
Find Deal
Tue, Feb 25 - Tue, Apr 8
9:59 am - 12:49 amPHL-DEN
16h 50m1 stop
9:45 am - 8:34 pmDEN-PHL
8h 49m1 stop
Thu, Mar 13 - Sat, Mar 22
8:10 am - 10:32 amPHL-DEN
4h 22mnonstop
6:00 am - 2:24 pmDEN-PHL
6h 24m1 stop
$226United Airlines
Find Deal
Tue, Feb 4 - Sat, Feb 8
10:45 am - 1:21 pmPHL-DEN
4h 36mnonstop
7:00 am - 12:32 pmDEN-PHL
3h 32mnonstop
$234American Airlines
Find Deal
Sun, Feb 16 - Fri, Feb 21
2:45 pm - 5:05 pmPHL-DEN
4h 20mnonstop
5:45 pm - 11:15 pmDEN-PHL
3h 30mnonstop
$241Southwest
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Wed, Jan 29 - Thu, Jan 30
7:05 pm - 9:25 pmPHL-DEN
4h 20mnonstop
7:00 am - 12:44 pmDEN-PHL
3h 44mnonstop
$248American Airlines
Find Deal
Thu, Jan 30 - Thu, Feb 6
7:34 pm - 10:09 pmPHL-DEN
4h 35mnonstop
$44Frontier
Find Deal
Sat, Feb 15
7:34 pm - 10:09 pmPHL-DEN
4h 35mnonstop
$46Frontier
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Sat, Feb 15
4:40 pm - 7:05 pmPHL-DEN
4h 25mnonstop
$86Southwest
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Mon, Feb 24
7:10 pm - 9:50 pmPHL-DEN
4h 40mnonstop
$91American Airlines
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Tue, Feb 18
3:40 pm - 6:02 pmPHL-DEN
4h 22mnonstop
$96United Airlines
Find Deal
Mon, Feb 10
7:05 pm - 9:25 pmPHL-DEN
4h 20mnonstop
$101American Airlines
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Mon, Feb 10
6:40 am - 9:10 amPHL-DEN
4h 30mnonstop
$106Southwest
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Fri, Feb 28
3:45 pm - 6:02 pmPHL-DEN
4h 17mnonstop
$119United Airlines
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Tue, Apr 15
7:05 am - 12:48 pmPHL-DEN
7h 43m1 stop
$134Delta
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Tue, Feb 11
5:55 am - 10:19 pmPHL-DEN
18h 24m1 stop
$240Delta
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Tue, Jul 15
7:20 am - 8:44 amPHL-DEN
27h 24m1 stop
3:19 pm - 8:48 pmDEN-PHL
3h 29mnonstop
$266Frontier
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Tue, Jan 21 - Thu, Jan 23
7:20 am - 8:44 amPHL-DEN
27h 24m1 stop
3:19 pm - 8:48 pmDEN-PHL
3h 29mnonstop
$269Frontier
Find Deal
Tue, Jan 21 - Thu, Jan 23
7:08 am - 7:32 pmPHL-DEN
14h 24m1 stop
3:19 pm - 8:48 pmDEN-PHL
3h 29mnonstop
$279Frontier
Find Deal
Sun, Jan 19 - Thu, Jan 23
8:33 am - 1:30 pmPHL-DEN
30h 57m3 stops
6:49 pm - 9:29 pmDEN-PHL
24h 40m3 stops
Mon, Jan 20 - Fri, Jan 24
8:33 am - 1:30 pmPHL-DEN
30h 57m3 stops
6:49 pm - 6:55 pmDEN-PHL
22h 06m2 stops
Mon, Jan 20 - Fri, Jan 24
5:10 pm - 9:51 amPHL-DEN
18h 41m2 stops
6:00 am - 9:41 amDEN-PHL
25h 41m1 stop
$685United Airlines
Find Deal
Tue, Jan 21 - Sun, Jan 26
6:24 pm - 8:27 amPHL-DEN
16h 03m2 stops
6:10 pm - 9:41 amDEN-PHL
13h 31m1 stop
$762United Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 28
6:00 am - 5:03 pmPHL-DEN
13h 03m1 stop
11:26 am - 11:53 pmDEN-PHL
10h 27m1 stop
$1,368Delta
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Tue, Jan 21 - Sat, Jan 25
6:00 am - 8:25 pmPHL-DEN
16h 25m1 stop
6:05 am - 11:53 pmDEN-PHL
15h 48m1 stop
$1,398Delta
Find Deal
Sat, Jan 18 - Sat, Jan 25
7:05 pm - 9:25 pmPHL-DEN
4h 20mnonstop
12:08 pm - 5:49 pmDEN-PHL
3h 41mnonstop
$1,535American Airlines
Find Deal
Mon, Jan 20 - Thu, Jan 23
7:34 pm - 10:09 pmPHL-DEN
4h 35mnonstop
6:00 am - 11:39 amDEN-PHL
3h 39mnonstop
$91Frontier
Find Deal
Sat, Feb 15 - Thu, Feb 20
7:34 pm - 10:09 pmPHL-DEN
4h 35mnonstop
6:00 am - 11:39 amDEN-PHL
3h 39mnonstop
$110Frontier
Find Deal
Sat, Feb 22 - Thu, Feb 27
4:34 pm - 7:03 pmPHL-DEN
4h 29mnonstop
6:00 am - 11:39 amDEN-PHL
3h 39mnonstop
$123Frontier
Find Deal
Mon, Feb 17 - Thu, Feb 20
9:53 pm - 12:24 amPHL-DEN
4h 31mnonstop
3:19 pm - 8:48 pmDEN-PHL
3h 29mnonstop
$130Frontier
Find Deal
Thu, Jan 30 - Thu, Feb 6
4:40 pm - 7:05 pmPHL-DEN
4h 25mnonstop
5:45 pm - 11:15 pmDEN-PHL
3h 30mnonstop
$171Southwest
Find Deal
Mon, Feb 24 - Wed, Feb 26
4:35 pm - 7:00 pmPHL-DEN
4h 25mnonstop
5:45 pm - 11:15 pmDEN-PHL
3h 30mnonstop
$191Southwest
Find Deal
Fri, Feb 21 - Tue, Feb 25
9:00 am - 11:16 amPHL-DEN
4h 16mnonstop
7:00 am - 12:44 pmDEN-PHL
3h 44mnonstop
$201American Airlines
Find Deal
Tue, Feb 11 - Wed, Feb 12
7:10 pm - 9:50 pmPHL-DEN
4h 40mnonstop
12:20 am - 5:42 amDEN-PHL
3h 22mnonstop
$209American Airlines
Find Deal
Wed, Mar 5 - Mon, Mar 10
3:40 pm - 6:02 pmPHL-DEN
4h 22mnonstop
10:10 am - 3:44 pmDEN-PHL
3h 34mnonstop
$286United Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
3:40 pm - 6:02 pmPHL-DEN
4h 22mnonstop
5:50 pm - 11:24 pmDEN-PHL
3h 34mnonstop
$311United Airlines
Find Deal
Sat, Feb 1 - Mon, Feb 3

Frontier flights from Philadelphia to Denver

Our best Frontier deals on Philadelphia to Denver flight tickets
Frontier
Feb 15
PHL7:34 pmPhiladelphia
4h 35m
DEN10:09 pmDenver Intl
Feb 20
DEN6:00 amDenver Intl
3h 39m
PHL11:39 amPhiladelphia
Frontier
Feb 15
PHL7:34 pmPhiladelphia
4h 35m
DEN10:09 pmDenver Intl
Feb 22
DEN8:53 pmDenver Intl
12h 33m
1 stop
PHL11:26 amPhiladelphia
Frontier
Feb 24
PHL2:57 pmPhiladelphia
6h 35m
1 stop
DEN7:32 pmDenver Intl
Feb 27
DEN6:00 amDenver Intl
3h 39m
PHL11:39 amPhiladelphia

United Airlines flights from Philadelphia to Denver

Our best United Airlines deals on Philadelphia to Denver flight tickets
United Airlines
Feb 25
PHL8:01 amPhiladelphia
4h 29m
DEN10:30 amDenver Intl
Apr 8
DEN5:59 pmDenver Intl
3h 36m
PHL11:35 pmPhiladelphia
United Airlines
Feb 4
PHL8:10 amPhiladelphia
4h 22m
DEN10:32 amDenver Intl
Feb 8
DEN6:00 amDenver Intl
6h 24m
1 stop
PHL2:24 pmPhiladelphia
United Airlines
Feb 26
PHL10:10 amPhiladelphia
8h 18m
1 stop
DEN4:28 pmDenver Intl
Mar 4
DEN5:50 pmDenver Intl
3h 31m
PHL11:21 pmPhiladelphia

See travel insights to Denver from

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?

The cheapest month to fly to Denver from Philadelphia is in May. Flight prices, which tend to average around $237, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in May, then you should wait until April to fly from Philadelphia, when ticket prices are also cheap, with an average price of $238.

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 Tuesday when prices can be found for as low as $267. 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 $338.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $201. Flights in the morning are often more expensive with an average ticket price of $368.

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 8 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $295 when searching 8 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 $249 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.

How have Philadelphia to Denver flight prices changed over time?

As of January 2025, prices for Philadelphia to Denver flights are approximately 26% 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

$44

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 $44. The best round-trip flight deal from Philadelphia to Denver found on momondo in the last 72 hours is $91.
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)

  • 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 20m.

  • 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
Sun Country AirPriceFrom $82Free CancellationRating
7.0
384 reviews
Search Sun Country Air flights
FrontierPriceFrom $88Free CancellationRating
6.0
3,435 reviews
Search Frontier flights
Allegiant AirPriceFrom $130Free CancellationRating
7.3
801 reviews
Search Allegiant Air flights
SouthwestPriceFrom $182Free CancellationRating
8.1
4,659 reviews
Search Southwest flights
United AirlinesPriceFrom $187Free CancellationRating
7.4
8,964 reviews
Search United Airlines flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
JetBluePriceFrom $207Free CancellationRating
7.4
3,199 reviews
Search JetBlue flights
DeltaPriceFrom $221Free CancellationRating
8.0
8,511 reviews
Search Delta flights
  • Southwest Flights From Philadelphia to Denver

    The lowest priced Southwest flight from Philadelphia to Denver from the last 72 hours was $182. Generally, Southwest has 12 flights on this route every week with an average price of $329. Southwest is rated 8.1/10 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 $187 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $416. United Airlines operates 17 flights to Denver from Philadelphia in an average week. Users have rated it 7.4/10 across 8,965 reviews.


Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Aurora
Fort Collins
Black Hawk
Lakewood
Keystone
Longmont
Boulder
Cripple Creek
Westminster
Greeley
Manitou Springs
Thornton
Sterling
Silverthorne
Frisco
Golden
Wheat Ridge
Winter Park

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Denver. Millions of users trust and use momondo every year so you are in good hands.

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.


An easier way to manage your Denver trip

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