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Cheap flights from Philadelphia to Denver from C$ 209

PHL — DEN
19 Oct — 26 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Philadelphia to Denver Intl are usually found in January or April, booked 28 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

Wed 9/127:30 a.m. -
2 stops10h 25m
Wed 16/127:05 a.m. -
1 stop5h 10m
Deal found 14/9C$ 372
Thu 10/125:00 a.m. -
Nonstop4h 20m
Tue 15/122:45 p.m. -
1 stop6h 25m
Deal found 16/9C$ 376
Wed 21/106:00 a.m. -
2 stops8h 50m
Wed 28/1011:15 a.m. -
2 stops8h 20m
Deal found 15/9C$ 379
Tue 20/106:00 a.m. -
2 stops9h 20m
Wed 21/1011:15 a.m. -
2 stops8h 20m
Deal found 15/9C$ 381
Mon 23/116:46 p.m. -
1 stop5h 58m
Tue 5/19:35 a.m. -
1 stop6h 03m
Deal found 15/9C$ 383
Tue 6/108:00 a.m. -
Nonstop4h 02m
Sat 10/105:37 p.m. -
Nonstop3h 43m
Deal found 17/9C$ 385
Tue 27/105:30 a.m. -
Nonstop4h 05m
Fri 30/107:35 p.m. -
Nonstop3h 35m
Deal found 15/9C$ 386
Tue 22/124:58 p.m. -
1 stop8h 22m
Tue 29/1211:59 p.m. -
Nonstop3h 32m
Deal found 15/9C$ 388
Mon 5/106:15 a.m. -
1 stop5h 33m
Fri 9/1012:59 a.m. -
1 stop6h 01m
Deal found 14/9C$ 390
Tue 22/127:37 p.m. -
1 stop6h 38m
Tue 5/19:35 a.m. -
1 stop6h 03m
Deal found 15/9C$ 395
Mon 23/118:15 p.m. -
1 stop6h 10m
Tue 5/16:30 a.m. -
2 stops8h 00m
Deal found 15/9C$ 397
Tue 27/1010:00 a.m. -
Nonstop4h 20m
Mon 9/116:08 p.m. -
Nonstop3h 31m
Deal found 17/9C$ 400

Find flight deals from Philadelphia to Denver

Round-trip from

C$ 353

One-way from

C$ 209

Popular in

June

Cheapest in

January

Average price

C$ 596

Good round-trip deal

C$ 1,087 or less
Southwest
  • Southwest
  • 10/11-11/11
  • 1 total stop
  • 12h 30m total
  • Philadelphia to Denver
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Delta
  • Delta
  • 26/11-31/12
  • 1 total stop
  • 8h 43m total
  • Philadelphia to Denver
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Highest demand for flights based on searches. 5% potential increase in price (C$ 45 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip 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

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Tue 22/12

4:58 p.m.-11:20 p.m.

1 stop8h 22m

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 27/10

7:45 a.m.-10:05 a.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 225

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Fri 16/10

7:16 p.m.-11:44 p.m.

1 stop6h 28m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 232

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Mon 9/11

10:00 a.m.-12:20 p.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 232

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Fri 23/10

5:10 p.m.-1:40 a.m.

2 stops10h 30m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 239

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Tue 15/12

9:55 a.m.-12:15 p.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 253

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 10/10

7:10 p.m.-11:54 p.m.

1 stop6h 44m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 253

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Thu 29/10

7:45 a.m.-10:05 a.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 264

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Tue 27/10

6:00 a.m.-11:25 a.m.

2 stops7h 25m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 290

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Fri 13/11

7:45 a.m.-10:05 a.m.

Nonstop4h 20m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 302

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 23 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 30 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, January is the cheapest month in which you can book a flight from Philadelphia to Denver (average of C$ 439). Flying from Philadelphia to Denver in June is currently the most expensive (average of C$ 658). 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$ 433 and C$ 691 in December.
The cheapest round-trip price found within the last 5 days was C$ 372 on Southwest (9 Dec-16 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 United Airlines, Delta, and Southwest fly from Philadelphia to Denver in about 4h 15m. The time it takes to get you to your destination can typically vary by up to 4h 07m. Airlines will cover a distance of 2499 km. This flight may include one or multiple stops.

  • 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 United Airlines (74%), Volaris (69%) or American Airlines (68%) 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$ 1,092, our data shows the cheapest flight currently is C$ 904. When looking at the most popular route, (Philadelphia - Denver Intl), you can expect to pay C$ 631 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, January is the cheapest month in which you can book a flight from Philadelphia to Denver (average of C$ 439). Flying from Philadelphia to Denver in June is currently the most expensive (average of C$ 658). 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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Yes! Cheapflights helps users easily find flights from Philadelphia to Denver with no change fees.

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