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$95+ Cheap flights from Philadelphia to Denver (PHL - DEN)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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The best prices from Philadelphia to Denver Intl are usually found in May or April, booked 79 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 December 19, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$161
(Kiwi.com)

One-way from

$95
(Cheapflightsfares)

Popular in

December

Cheapest in

May

Average price

$378
Provider with most accurate pricing for Philadelphia-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Denver Intl flights.
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From Philadelphia to Denver Intl
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One-way flight from Philadelphia to Denver Intl
Search Deals
High demand for flights, 11% 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 December 2024
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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 December 19, 2024.

This Frontier deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:40 amPHL - DEN
Nonstop4h 35mFrontier
Thu 1/97:42 pmDEN - PHL
1 stop11h 03mFrontier
Deal found 12/17$222
This FlightHub deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/219:18 amPHL - DEN
1 stop16h 16mMultiple Airlines
Sun 1/57:15 pmDEN - PHL
1 stop13h 31mMultiple Airlines
Deal found 12/18$287
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2412:42 pmPHL - DEN
1 stop6h 35mSun Country Air
Mon 12/306:50 pmDEN - PHL
1 stop14h 10mSun Country Air
Deal found 12/17$474
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:05 amPHL - DEN
1 stop6h 08mDelta
Wed 1/16:00 amDEN - PHL
1 stop16h 52mDelta
Deal found 12/17$475

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 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sun 2/23

7:15 am-9:06 pm

1 stop15h 51m

Denver Intl

Sun 2/23

11:59 pm-9:48 pm

1 stop19h 49m

$161

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 1/21

3:40 pm-6:02 pm

Nonstop4h 22m

Denver Intl

Sat 1/25

10:10 am-3:44 pm

Nonstop3h 34m

$201

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 2/15

4:55 pm-7:20 pm

Nonstop4h 25m

Denver Intl

Wed 2/19

12:10 pm-5:40 pm

Nonstop3h 30m

$202

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 1/29

3:15 pm-10:59 pm

1 stop9h 44m

Denver Intl

Sun 2/2

11:55 pm-10:34 am

1 stop8h 39m

$208

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 1/1

12:22 pm-9:24 pm

1 stop11h 02m

Denver Intl

Tue 1/7

6:45 am-11:48 am

1 stop27h 03m

$209

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 1/15

9:00 am-11:16 am

Nonstop4h 16m

Denver Intl

Sat 1/18

6:37 am-12:26 pm

Nonstop3h 49m

$211

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 1/25

11:30 am-3:49 pm

1 stop6h 19m

Denver Intl

Wed 2/5

4:15 pm-11:53 pm

1 stop5h 38m

$256

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 1/23

9:53 pm-12:24 am

Nonstop4h 31m

$95

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 1/28

3:40 pm-6:02 pm

Nonstop4h 22m

$101

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 3/10

6:10 pm-11:04 pm

1 stop6h 54m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 16 results
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Compare providers for flights from Philadelphia to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Denver in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
CheapOairPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Philadelphia to Denver flights

Find out what our experts recommend to make the most of your Philadelphia to Denver trip
Airlines
Frontier

Frontier's UpFront Plus guarantees an empty middle seat for added comfort.


Early check-in helps secure your place onboard due to frequent overbooking.

Read more about Frontierby Marisa Garcia
American Airlines

Main Cabin Extra offers 34”-35” seat pitch, enhancing comfort over standard economy.


Flagship First includes lounge access and priority boarding, enhancing travel experience.

Read more about American Airlinesby Marisa Garcia
United Airlines

Basic Economy allows a personal item only; carry-on incurs fees unless exceptions apply.


Prepay checked bags 24 hours before to save on fees; premium cabins may waive fees.

Read more about United Airlinesby Harriet Baskas
Airports
PHL

For a quick check-in, verify your airline's terminal before arriving. Terminals are spread out, with only B and C, and D and E connected indoors.

Read more about PHLby Mark Chesnut
DEN

Use the A Line train for a cost-effective trip to downtown Denver. It runs every 15 minutes and takes 37 minutes to Union Station.

Read more about DENby Emily Zemler
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and American Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

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 December 13, 2024.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Denver (average of $197). Flying from Philadelphia to Denver in March is currently the most expensive (average of $278). 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 December 19, 2024.

It’s typically best to fly out from Philadelphia to Denver in the evening. Doing so could potentially save you 46% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Philadelphia to Denver?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Denver. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 19, 2024.

The most flights from PHL to DEN are scheduled on a Thursday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 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 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 December 19, 2024.
Get a feel of what it's like to fly with Frontier, Southwest and Delta from Philadelphia to Denver by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,836 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
4,836 reviews
Southwest
8.1
Very good
4,836 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
9,552 reviews
Southwest
8.1
Very good
4,836 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
8,600 reviews
Southwest
8.1
Very good
4,836 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
3,274 reviews
Southwest
8.1
Very good
4,836 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
9,048 reviews
Southwest
8.1
Very good
4,836 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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.

  • What airports do I use to fly from Philadelphia to Denver?

    Booking a flight from Philadelphia (PHL) to Denver Intl (DEN) is your only option if you wish to fly from Philadelphia to Denver. On a typical day, there are 7 flights from Philadelphia to Denver Intl, all of which are around 4h 00m for a nonstop flight. You can also purchase a plane ticket from 7 airlines when you book a flight from Philadelphia to Denver.

  • How popular is this Philadelphia to Denver flight route?

    The Philadelphia to Denver Intl flight path was viewed by 171 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?

    Currently priced at $161, Frontier will fly you from Philadelphia to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Southwest - these airlines can fly you to your destination from $201 and $202, respectively. Frontier is priced at 46% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $95 on Frontier. Other airlines that offer cheap prices include United Airlines from $101 and JetBlue from $104 one-way.

  • 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 (93%), Air Canada (92%) or Frontier (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to Denver?

    On average you can expect to pay $772 for a flight from Philadelphia to Denver. The cheapest flight overall is $90 while the most popular route, (Philadelphia - Denver Intl) is currently priced at $106.

  • 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, October is the cheapest month in which you can book a flight from Philadelphia to Denver (average of $197). Flying from Philadelphia to Denver in March is currently the most expensive (average of $278). 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

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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.
John F Kennedy Intl to Denver flights
LaGuardia to Denver flights
Newark to Denver flights
Dulles Intl to Denver flights
Reagan-National to Denver flights
Pittsburgh to Denver flights
John F Kennedy Intl to Vail flights
Newark to Vail flights
LaGuardia to Vail flights
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LaGuardia to Aspen flights
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John F Kennedy Intl to Montrose flights
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Dulles Intl to Vail flights
Reagan-National to Vail flights
LaGuardia to Montrose flights
Newark to Colorado Springs flights
Dulles Intl to Colorado Springs flights
John F Kennedy Intl to Colorado Springs flights
John F Kennedy Intl to Grand Junction flights
Dulles Intl to Aspen flights
Reagan-National to Aspen flights
Newark to Grand Junction flights
LaGuardia to Grand Junction flights
Newark to Durango flights
LaGuardia to Colorado Springs flights
Dulles Intl to Hayden flights
LaGuardia to Durango flights
Harrisburg to Denver flights
State College to Denver flights
Philadelphia to Vail flights
Reagan-National to Colorado Springs flights
Reagan-National to Hayden flights
Philadelphia to Hayden flights
Philadelphia to Aspen flights
Dulles Intl to Montrose flights
Dulles Intl to Gunnison flights
Philadelphia to Colorado Springs flights
Pittsburgh to Colorado Springs flights
Scranton to Denver flights
Reagan-National to Montrose flights
Philadelphia to Grand Junction flights
Dulles Intl to Durango flights
Pittsburgh to Montrose flights

Top 7 airlines flying from Philadelphia to Denver

Discover the top 7 airlines that operate flights from Philadelphia to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
FrontierCheapest$88Average$206FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$104Average$213FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$179Average$326FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$189Average$416FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$191Average$366FlexibilityNo cancel feeOn-time71%
DeltaCheapest$221Average$356FlexibilityNo cancel feeOn-timeN/A
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