CA $125 Cheap Flights from Denver (DEN) to Philadelphia (PHL)

View CA $125 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from Denver International Airport (DEN) to Philadelphia International Airport (PHL)

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Cheap flights from Denver (DEN) to Philadelphia (PHL)

Prices were available within the past 7 days and start at CA $125 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Denver (DEN) to Philadelphia (PHL)

March is typically the cheapest month to fly

From CA $129 - CA $652 per traveller.

Graph displaying average flight prices per month

Flight from Denver to Philadelphia (DEN - PHL) route information
Origin airport
Denver Intl.
Destination airport
Philadelphia Intl.
Distance
2485 km
Average flight time
5 hours 40 mins

Denver to Philadelphia Flights

The easy way to book your flights from Denver to Philadelphia 

With Expedia, it’s simple to find and book flights to Philadelphia from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Philadelphia Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Philadelphia today, tomorrow, or this week.  

 

Save dollars with cheap flights from Denver Intl., DEN to Philadelphia Intl., PHL 

Sort your search results by price to find great deals on your flight from Denver to Philadelphia—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Philadelphia from Denver currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Philadelphia  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Philadelphia from Denver 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Philadelphia with Expedia today.

Frequently asked questions

How much is a flight from Denver Intl. Airport (DEN) to PHL?
Start packing your suitcase, because round-trip flights from DEN to Philadelphia Airport start from . That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Denver Airport to Philadelphia Intl. Airport (PHL)?
Most flights can be cancelled online, but each airline has different terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from DIA airport to Philadelphia Intl. Airport (PHL) that have flexible change policies?
Flights from DEN to PHL with flexible change policies are available with many carriers. Simply use our "No change fees" filter while searching. You'll only need to cover the cost difference between flights, with no added fees to worry about.
How many hours is the flight from DEN to Philadelphia Intl. Airport (PHL)?
The average flight between Denver Airport and PHL is 3 hours and 35 minutes. If you're travelling with kids, it's always a good idea to pack some fruit or snacks in your hand luggage.
How far is the flight from DEN to PHL?
The flight distance between DEN and Philadelphia Intl. Airport (PHL) is 2,500 kilometres. Listen to your favourite tunes or finish that novel and the trip will zip on by.
Which airlines fly direct from Denver Intl. Airport (DEN) to PHL?
Whether you need a return or one-way flight, you'll have your pick of airlines that will take you directly from Denver Airport to Philadelphia Intl. Airport (PHL). These are some of the most popular ones:

  • United Airlines - (UA) with 60 monthly flights
  • Southwest Airlines - (WN) with 56 monthly flights
  • American Airlines - (AA) with 56 monthly flights
  • Frontier Airlines - (F9) with 8 monthly flights

Are Denver Airport to Philadelphia Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to find an awesome last-minute deal from Denver Airport to Philadelphia Intl. Airport (PHL), but it's also possible to miss out entirely! As many airlines release prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares carrier prices and updates flight deals all the time, so you can rest assured you're always seeing the latest offers.

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