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Cheap flights from Philadelphia to Denver from C$ 138

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Philadelphia to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

C$ 246

One-way from

C$ 138

Popular in

December

Cheapest in

May

Average price

C$ 441
Southwest
  • Southwest
  • 24/2-26/2
  • Nonstop
  • 7h 55m total
  • Philadelphia to Denver
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Southwest
  • Southwest
  • 11/2
  • Nonstop
  • 4h 25m total
  • Philadelphia to Denver
Search Deals
High demand for flights, 10% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Philadelphia to Denver

Cheapest flights from Philadelphia to Denver
Explore the most affordable flight options available from Philadelphia to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Mon 24/24:40 p.m.PHL - DEN
Nonstop4h 25mSouthwest
Wed 26/25:45 p.m.DEN - PHL
Nonstop3h 30mSouthwest
Deal found 16/1C$ 246
Wed 19/23:21 p.m.PHL - DEN
Nonstop4h 29mUnited Airlines
Mon 24/211:59 p.m.DEN - PHL
1 stop7h 53mUnited Airlines
Deal found 15/1C$ 289
Wed 26/36:10 p.m.PHL - DEN
1 stop6h 54mJetBlue
Mon 31/310:33 p.m.DEN - PHL
1 stop7h 05mJetBlue
Deal found 16/1C$ 300
Mon 3/26:00 a.m.PHL - DEN
1 stop5h 59mDelta
Wed 5/23:55 p.m.DEN - PHL
1 stop5h 25mDelta
Deal found 16/1C$ 369
Thu 24/712:05 p.m.PHL - DEN
1 stop27h 14mSun Country Air
Wed 30/77:15 p.m.DEN - PHL
1 stop13h 55mSun Country Air
Deal found 16/1C$ 374
Tue 25/26:25 p.m.PHL - DEN
2 stops21h 29mAlaska Airlines
Thu 27/27:00 a.m.DEN - PHL
1 stop32h 25mAlaska Airlines
Deal found 16/1C$ 724

Find flights from Philadelphia to Denver within your budget

Customize your flight search to find flights from Philadelphia to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 24/2

4:40 p.m.-7:05 p.m.

Nonstop4h 25m

Denver Intl

Wed 26/2

5:45 p.m.-11:15 p.m.

Nonstop3h 30m

C$ 246

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 19/2

3:21 p.m.-5:50 p.m.

Nonstop4h 29m

Denver Intl

Mon 24/2

11:59 p.m.-9:52 a.m.

1 stop7h 53m

C$ 289

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 26/3

6:10 p.m.-11:04 p.m.

1 stop6h 54m

Denver Intl

Mon 31/3

10:33 p.m.-7:38 a.m.

1 stop7h 05m

C$ 300

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 3/2

6:00 a.m.-9:59 a.m.

1 stop5h 59m

Denver Intl

Wed 5/2

3:55 p.m.-11:20 p.m.

1 stop5h 25m

C$ 369

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 25/6

12:05 p.m.-9:19 a.m.

1 stop23h 14m

Denver Intl

Wed 2/7

7:15 p.m.-11:10 a.m.

1 stop13h 55m

C$ 381

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 25/2

6:25 p.m.-1:54 p.m.

2 stops21h 29m

Denver Intl

Thu 27/2

7:00 a.m.-5:25 p.m.

1 stop32h 25m

C$ 724

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 11/2

9:45 a.m.-12:10 p.m.

Nonstop4h 25m

C$ 138

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 18/2

10:10 a.m.-4:28 p.m.

1 stop8h 18m

C$ 152

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Fri 21/3

7:20 p.m.-8:59 p.m.

1 stop27h 39m

C$ 184

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 11/2

8:05 a.m.-2:25 p.m.

1 stop8h 20m

C$ 185

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Showing 1-10 of 12 results
1
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Philadelphia to Denver

Get recent, data-driven insights about flights from Philadelphia to Denver including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Denver. Price data was last updated on 10 January 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Denver, you should look to book at least 56 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, August is the cheapest month in which you can book a flight from Philadelphia to Denver (average of C$ 320). Flying from Philadelphia to Denver in December is currently the most expensive (average of C$ 484). 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?

Find hourly flight availability from Philadelphia to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Denver as you normally would.

Weekly flight availability from Philadelphia to Denver

Explore weekly flight availability from Philadelphia to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 January 2025.

The most flights from PHL to DEN are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 13.0 - 58.0 mm per month. May is typically the wettest month, when rainfall can reach 58.0 mm. January is typically the driest time to visit Denver when rainfall is around 13.0 mm.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated 17 January 2025.
To help decide which airline to fly from Philadelphia to Denver, see what other customers have to say about United Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,199 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,964 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Philadelphia to Denver flight route?

    This flight path from Philadelphia to Denver Intl was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Philadelphia to Denver round-trip?

    According to our current data, Southwest (C$ 246), United Airlines (C$ 275), and JetBlue (C$ 300) offers the cheapest pricing from Philadelphia to Denver. Southwest is currently priced 42% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Philadelphia to Denver one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as C$ 138. Users have also found prices from C$ 152 and C$ 184 on United Airlines and Sun Country Air, respectively.

  • 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 (85%), Air Canada (85%) or Southwest (76%) as they are the most reliable in getting you off to your destination on time.

  • 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, August is the cheapest month in which you can book a flight from Philadelphia to Denver (average of C$ 320). Flying from Philadelphia to Denver in December is currently the most expensive (average of C$ 484). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Golden
Westminster
Thornton

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Alternative routes for Philadelphia to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Denver flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Philadelphia to Denver?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Philadelphia to Denver. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Philadelphia to Denver for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Philadelphia to Denver with no change fees?

Yes! Cheapflights helps users easily find flights from Philadelphia to Denver with no change fees.

Can Cheapflights notify me if prices for flights from Philadelphia to Denver become cheaper?

Yes! Start tracking prices for Philadelphia to Denver flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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