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$87+ Cheap flights from Denver to Philadelphia (DEN - PHL)

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHL
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Denver Intl to Philadelphia are usually found in May or April, booked 61 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Denver to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Philadelphia (PHL). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$159
(FlightHub)

One-way from

$87
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$299

Good round-trip deal

$269 or less

Good one-way deal

$162 or less
Provider with most accurate pricing for Denver Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Philadelphia flights.
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From Denver Intl to Philadelphia
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One-way flight from Denver Intl to Philadelphia
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Highest demand for flights based on searches. 16% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Denver Intl to Philadelphia.
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Price to beat on a one-way flight from Denver Intl to Philadelphia.
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Find flight deals from Denver to Philadelphia

Cheapest flights from Denver to Philadelphia
Explore the most affordable flight options available from Denver to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/19. 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.
Tue 3/412:13 amDEN - PHL
1 stop10h 19mFrontier
Sun 3/96:40 amPHL - DEN
Nonstop4h 31mFrontier
Deal found 2/19$159
This CheapOair deal was found by Cheapflights users on 2/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/217:45 pmDEN - PHL
1 stop23h 19mMultiple Airlines
Mon 3/246:26 pmPHL - DEN
1 stop8h 19mMultiple Airlines
Deal found 2/18$179
This Sun Country Air deal was found by Cheapflights users on 2/19. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/217:45 pmDEN - PHL
1 stop23h 19mSun Country Air
Sun 3/307:00 amPHL - DEN
1 stop27h 15mSun Country Air
Deal found 2/19$195
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2812:20 amDEN - PHL
Nonstop3h 22mAmerican Airlines
Wed 4/97:55 pmPHL - DEN
Nonstop4h 11mAmerican Airlines
Deal found 2/19$205
This JetBlue Airways deal was found by Cheapflights users on 2/19. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2011:59 pmDEN - PHL
1 stop7h 37mJetBlue
Sat 3/296:00 amPHL - DEN
1 stop8h 08mJetBlue
Deal found 2/19$268
This Delta deal was found by Cheapflights users on 2/19. 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.
Mon 3/2412:55 amDEN - PHL
1 stop6h 01mDelta
Mon 3/317:00 amPHL - DEN
1 stop10h 20mDelta
Deal found 2/19$273

Find flights from Denver to Philadelphia within your budget

Customize your flight search to find flights from Denver to Philadelphia 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 February 20, 2025.

Fly from

Denver

Fly to

Philadelphia

Route

Depart

Return

Price

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 3/4

12:13 am-12:32 pm

1 stop10h 19m

Philadelphia

Sun 3/9

6:40 am-9:11 am

Nonstop4h 31m

$159

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 3/21

7:45 pm-9:04 pm

1 stop23h 19m

Philadelphia

Wed 3/26

3:55 pm-11:04 pm

1 stop9h 09m

$179

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 3/21

7:45 pm-9:04 pm

1 stop23h 19m

Philadelphia

Sun 3/30

7:00 am-8:15 am

1 stop27h 15m

$195

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 3/28

12:20 am-5:42 am

Nonstop3h 22m

Philadelphia

Wed 4/9

7:55 pm-10:06 pm

Nonstop4h 11m

$205

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 3/20

11:59 pm-9:36 am

1 stop7h 37m

Philadelphia

Sat 3/29

6:00 am-12:08 pm

1 stop8h 08m

$268

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Mon 3/24

12:55 am-8:56 am

1 stop6h 01m

Philadelphia

Mon 3/31

7:00 am-3:20 pm

1 stop10h 20m

$273

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 3/11

12:24 am-1:05 pm

1 stop10h 41m

$87

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/28

6:08 pm-9:04 pm

1 stop24h 56m

$93

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 4/22

10:33 pm-7:38 am

1 stop7h 05m

$105

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 4/9

11:59 pm-5:35 am

Nonstop3h 36m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 14 results
1
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Compare providers for flights from Denver to Philadelphia

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 Denver to Philadelphia in February.
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*2 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust 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 Denver-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Philadelphia 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 Denver-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Denver 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 Denver to Philadelphia

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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Philadelphia. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Denver to Philadelphia, you should look to book at least 61 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 Denver to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Denver to Philadelphia (average of $236). Flying from Denver to Philadelphia in March is currently the most expensive (average of $295). 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 DEN to PHL?

Find hourly flight availability from Denver to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

It’s typically best to fly out from Denver to Philadelphia in the evening. Doing so could potentially save you 58% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to Philadelphia. Price data was last updated on February 16, 2025.

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

Weekly flight availability from Denver to Philadelphia

Explore weekly flight availability from Denver to Philadelphia. 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 February 20, 2025.

The most flights from DEN to PHL are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Philadelphia by month

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

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

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

If weather is an important factor for your trip to Philadelphia, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated February 20, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Denver to Philadelphia have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Denver to Philadelphia. 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 Denver to Philadelphia?

    If you book a flight from Denver to Philadelphia, you will be flying from Denver Intl to Philadelphia. Flights to Philadelphia (PHL) from Denver Intl (DEN) take 3h 25m for a nonstop flight. There are 8 flights from Denver Intl to Philadelphia per day from 5 airlines.

  • How popular is this Denver to Philadelphia flight route?

    Flights from Denver Intl to Philadelphia have been viewed 97 times in the past calendar month.

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

    Currently priced at $159, Frontier will fly you from Denver to Philadelphia and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $205 and $276, respectively. Users have found that Frontier is 43% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $87. Users have also found prices from $93 and $105 on Sun Country Air and JetBlue, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Denver to Philadelphia consider choosing Aer Lingus (94%), United Airlines (87%) or American Airlines (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Denver to Philadelphia?

    The cheapest flight price from Denver to Philadelphia is $74. On average you can expect to pay $674. The most popular route, (Denver Intl - Philadelphia), can usually be booked for $102.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Philadelphia 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 Denver to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Denver to Philadelphia (average of $236). Flying from Denver to Philadelphia in March is currently the most expensive (average of $295). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
King of Prussia
Vineland
Pottstown
Reading
Wildwood
Exton
Ocean City
Cherry Hill
Essington
Chester
Willow Grove
Newark
Middletown
Millville
Wyomissing
Ephrata
Dewey Beach
West Chester
Malvern
Dover

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Alternative routes for Denver to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Denver to Philadelphia

Discover the top 5 airlines that operate flights from Denver to Philadelphia. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$209FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$183Average$423FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$184Average$316FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$187Average$331FlexibilityNo cancel feeOn-time71%
DeltaCheapest$226Average$319FlexibilityNo cancel feeOn-timeN/A
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