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Cheap flights from Philadelphia to Denver from C$ 204

PHL — DEN
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Philadelphia to Denver Intl are usually found in April or February, booked 82 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Philadelphia to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Philadelphia to Denver

Sat 5/125:20 a.m. -
Nonstop4h 20m
Tue 8/126:00 p.m. -
Nonstop3h 30m
Deal found 29/10C$ 340
Tue 17/111:20 p.m. -
1 stop6h 53m
Wed 18/116:08 p.m. -
Nonstop3h 31m
Deal found 26/10C$ 348
Thu 19/1110:00 a.m. -
Nonstop4h 20m
Fri 27/116:08 p.m. -
Nonstop3h 31m
Deal found 29/10C$ 350
Thu 3/129:45 a.m. -
1 stop7h 04m
Wed 9/126:10 p.m. -
Nonstop3h 31m
Deal found 29/10C$ 354
Wed 25/117:45 a.m. -
Nonstop4h 20m
Tue 1/126:10 p.m. -
Nonstop3h 31m
Deal found 29/10C$ 355
Sat 5/125:20 a.m. -
Nonstop4h 20m
Mon 7/128:10 a.m. -
1 stop11h 20m
Deal found 28/10C$ 362
Thu 19/115:00 a.m. -
Nonstop4h 20m
Mon 23/116:45 p.m. -
Nonstop3h 25m
Deal found 28/10C$ 368
Thu 26/1110:00 a.m. -
Nonstop4h 20m
Thu 3/122:00 p.m. -
Nonstop3h 31m
Deal found 27/10C$ 369
Fri 20/1110:54 a.m. -
1 stop7h 29m
Fri 27/116:08 p.m. -
Nonstop3h 31m
Deal found 30/10C$ 373
Thu 26/115:30 a.m. -
1 stop5h 40m
Wed 9/1210:55 a.m. -
2 stops9h 15m
Deal found 27/10C$ 375
Fri 11/127:41 a.m. -
Nonstop4h 20m
Tue 15/129:50 a.m. -
1 stop6h 07m
Deal found 27/10C$ 376

Find flight deals from Philadelphia to Denver

Round-trip from

C$ 340

One-way from

C$ 204

Popular in

June

Cheapest in

April

Average price

C$ 594

Good one-way deal

C$ 489 or less
United Airlines
  • United Airlines
  • 5/12-9/12
  • Nonstop
  • 7h 51m total
  • Philadelphia to Denver
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Southwest
  • Southwest
  • 19/1-31/12
  • Nonstop
  • 4h 15m total
  • Philadelphia to Denver
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Highest demand for flights based on searches. 4% potential increase in price (C$ 35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a one-way flight from Philadelphia to Denver Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Philadelphia to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Thu 4/2

5:20 p.m.-7:35 p.m.

Nonstop4h 15m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 208

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 20/2

6:15 a.m.-10:12 a.m.

1 stop5h 57m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 218

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Tue 22/12

6:51 p.m.-11:53 p.m.

1 stop7h 02m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 222

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Thu 3/12

5:00 a.m.-7:20 a.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 222

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Thu 17/12

7:35 a.m.-10:04 a.m.

Nonstop4h 29m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 222

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sun 6/12

7:41 a.m.-10:01 a.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 236

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sun 8/11

10:00 a.m.-10:40 a.m.

1 stop26h 40m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 277

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Thu 25/2

6:13 p.m.-11:19 p.m.

1 stop7h 06m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 294

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Fri 1/1

5:00 a.m.-7:20 a.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 295

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sun 20/12

4:20 p.m.-10:10 p.m.

2 stops7h 50m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 310

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Philadelphia to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Philadelphia with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Denver

How far ahead should I book a flight from Philadelphia to Denver?

To ensure you get the cheapest price possible for a flight from Philadelphia to Denver, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Philadelphia to Denver?

Currently, April is the cheapest month in which you can book a flight from Philadelphia to Denver (average of C$ 450). Flying from Philadelphia to Denver in June is currently the most expensive (average of C$ 657). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to DEN?

When flying from Philadelphia to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 77% versus a flight in the afternoon.

How much does it cost to fly round-trip from Philadelphia to Denver?

Airfare is below average for this route at the moment.

Philadelphia to Denver flights typically cost between C$ 403 and C$ 677 in December.
The cheapest round-trip price found within the last 5 days was C$ 340 on United Airlines (5 Dec-9 Dec).

Related info for your journey

  • How popular is this Philadelphia to Denver flight route?

    This flight path from Philadelphia to Denver Intl was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Philadelphia to Denver?

    Airlines like Southwest and United Airlines fly from Philadelphia to Denver in about 4h 20m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 2499 km. All flights are typically direct.

  • What are the most reliable airlines from Philadelphia to Denver?

    No one likes to see their flight delayed. When booking a flight from Philadelphia to Denver consider choosing Frontier (87%), Volaris (86%) or United Airlines (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to Denver?

    While on average a flight from Philadelphia to Denver is generally C$ 489, our data shows the cheapest flight currently is C$ 489. When looking at the most popular route, (Philadelphia - Denver Intl), you can expect to pay C$ 775 for that flight.

  • Can I find deals for flights from Philadelphia to Denver that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Denver.

  • Can I find deals for business class flights from Philadelphia to Denver?

    Yes. Cheapflights offers flight deals from Philadelphia to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Denver?

    Currently, April is the cheapest month in which you can book a flight from Philadelphia to Denver (average of C$ 450). Flying from Philadelphia to Denver in June is currently the most expensive (average of C$ 657). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Denver?

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Black Hawk

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Alternative routes for Philadelphia to Denver

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Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Denver?

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