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CA $223 Cheap Flights from Denver (DEN) to Philadelphia (PHL)

View CA $223 flight on Wed, Oct 14, 2026Opens 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 $223 for one-way flights and CA $445 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Nov 14 - Wed, Nov 18
DEN
Denver
PHL
Philadelphia
CA $445 Roundtrip, found 1 day ago
CA $445
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov 14 from Denver to Philadelphia, returning Wed, Nov 18, priced at CA $445 found 1 day ago
American Airlines
Sat, Oct 17 - Sat, Oct 24
DEN
Denver
PHL
Philadelphia
CA $447 Roundtrip, found 2 days ago
CA $447
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 17 from Denver to Philadelphia, returning Sat, Oct 24, priced at CA $447 found 2 days ago
Delta
Sat, Nov 14 - Wed, Nov 18
DEN
Denver
PHL
Philadelphia
CA $459 Roundtrip, found 1 day ago
CA $459
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 14 from Denver to Philadelphia, returning Wed, Nov 18, priced at CA $459 found 1 day ago
American Airlines
Sat, Oct 17 - Sat, Oct 24
DEN
Denver
PHL
Philadelphia
CA $461 Roundtrip, found 2 days ago
CA $461
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 17 from Denver to Philadelphia, returning Sat, Oct 24, priced at CA $461 found 2 days ago
American Airlines
Wed, Oct 14 - Fri, Oct 16
DEN
Denver
PHL
Philadelphia
CA $463 Roundtrip, found 1 day ago
CA $463
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 14 from Denver to Philadelphia, returning Fri, Oct 16, priced at CA $463 found 1 day ago
Delta
Sat, Oct 17 - Sat, Oct 24
DEN
Denver
PHL
Philadelphia
CA $474 Roundtrip, found 2 days ago
CA $474
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Oct 17 from Denver to Philadelphia, returning Sat, Oct 24, priced at CA $474 found 2 days ago
Delta
Sat, Oct 17 - Sat, Oct 24
DEN
Denver
PHL
Philadelphia
CA $475 Roundtrip, found 2 days ago
CA $475
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Oct 17 from Denver to Philadelphia, returning Sat, Oct 24, priced at CA $475 found 2 days ago
American Airlines
Sat, Nov 14 - Wed, Nov 18
DEN
Denver
PHL
Philadelphia
CA $476 Roundtrip, found 1 day ago
CA $476
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov 14 from Denver to Philadelphia, returning Wed, Nov 18, priced at CA $476 found 1 day ago
JetBlue Airways
Wed, Nov 18 - Mon, Nov 23
DEN
Denver
PHL
Philadelphia
CA $762 Roundtrip, found 2 days ago
CA $762
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Wed, Nov 18 from Denver to Philadelphia, returning Mon, Nov 23, priced at CA $762 found 2 days ago
Sun Country Airlines
Tue, Nov 24 - Mon, Nov 30
DEN
Denver
PHL
Philadelphia
CA $783 Roundtrip, found 3 days ago
CA $783
Roundtrip
found 3 days ago
Select Sun Country Airlines flight, departing Tue, Nov 24 from Denver to Philadelphia, returning Mon, Nov 30, priced at CA $783 found 3 days ago

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) cost?
You can find cheap one-way flights from CA $223 and cheap return flights from CA $445 DEN to PHL with Expedia. One-way flights typically cost between CA$771 and CA$1466. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when DEN to PHL ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The cheapest months to fly from DEN to PHL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
Four airlines offer direct flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.). Here are the top carriers:
  • American Airlines operates 31 direct flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
  • United operates 28 direct flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
  • Southwest Airlines operates 20 direct flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
  • Frontier Airlines operates 11 direct flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
Frontier Airlines is one of the cheapest airlines offering nonstop return flights from Denver Intl. (DEN) to Philadelphia Intl. (PHL), with tickets starting from around CA$77 for flights that can be booked for departure within the next year. Sun Country Airlines offers one of the cheapest connecting return flights from Denver Intl. (DEN) to Philadelphia Intl. (PHL), with tickets starting from around CA$286. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The best airline to fly with from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from DEN to PHL, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
You'll find approximately 13 nonstop flights per day from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.). For even more choices, look at flights that include layovers, as there are around 173 connecting flights daily. Some common connection points include O'Hare Intl. (ORD), Seattle - Tacoma Intl. (SEA), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The earliest flight from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) typically departs around 12:00 AM local time, operated by Frontier Airlines. This is a seasonal service active in September and October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
You'll typically find the most flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) on a Friday, with around 110 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United, and American Airlines. Friday offers notably more flight options compared to other days of the week, making it a great day to find a flight that fits your schedule.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Frontier Airlines and Southwest Airlines, offer flights during this window. Many travelers prefer this because it allows for an early arrival at your destination, giving you more time to enjoy your day in Philadelphia.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
Flying nonstop from DEN to PHL takes around 3 hours 30 minutes, with the route covering approximately 2,501 kilometers. Flights with a layover typically take 4 hours 20 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
You can fly business class or first class between DEN and PHL. Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • Alaska Airlines
  • Delta
  • United
  • American Airlines
How do I earn miles on a Denver, CO (DEN) to Philadelphia, PA (PHL) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN) to Philadelphia, PA (PHL) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Philadelphia, PA (PHL) from Denver, CO (DEN)?
If you're planning to travel to Philadelphia from Denver Intl. (DEN), you can fly directly into Philadelphia Intl. (PHL). Some flights may connect through major hubs like Portland Intl. (PDX), San Diego Intl. (SAN), or Seattle - Tacoma Intl. (SEA) before reaching Philadelphia. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN) to Philadelphia, PA (PHL) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN) to Philadelphia, PA (PHL) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN) to Philadelphia, PA (PHL) flight and hotel package?
Securing a Denver, CO (DEN) to Philadelphia, PA (PHL) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
If you booked your Denver, CO (DEN-Denver Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways
Roundtrip price
CA $445
Distance
2485 km
Average flight time
5 hours 17 mins

Book with confidence

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 CA $445 rising to CA $783.  

Here are more money-saving tips: 

  • Fly in November 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.

Denver to Philadelphia Flights

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*Available to Expedia members.