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

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

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

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
American Airlines
Delta
Southwest Airlines
American Airlines
American Airlines
Southwest Airlines
Delta
United
JetBlue Airways

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

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

September is typically the cheapest month to fly

From CA $143 - CA $339 per traveller.

Frequently asked questions

How much does a flight from Philadelphia, PA (PHL) to Denver, CO (DEN) cost?
You can find cheap one-way flights from CA $223 and cheap return flights from CA $445 PHL to DEN with Expedia. One-way flights typically cost between CA$184 and CA$583. 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 PHL to DEN ticket fares go up or down.
What is the cheapest month to fly from Philadelphia, PA (PHL) to Denver, CO (DEN)?
The cheapest months to fly from Philadelphia, PA (PHL) to Denver, CO (DEN) 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
There are 4 airlines offering direct flights from Philadelphia Intl. (PHL) to Denver Intl. (DEN). Here are the carriers:
  • United operates 34 direct flights from Philadelphia Intl. to Denver Intl. every week.
  • American Airlines operates 30 direct flights from Philadelphia Intl. to Denver Intl. every week.
  • Southwest Airlines operates 20 direct flights from Philadelphia Intl. to Denver Intl. every week.
  • Frontier Airlines operates 11 direct flights from Philadelphia Intl. to Denver Intl. every week.
What is the cheapest airline that flies from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
Frontier Airlines is one of the cheapest airlines offering nonstop return flights from Philadelphia Intl. (PHL) to Denver Intl. (DEN), 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 Philadelphia Intl. (PHL) to Denver Intl. (DEN), with tickets starting from around CA$289. 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) will differ from traveler to traveler. If you like to fly early, Frontier 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.), 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 Philadelphia, PA (PHL) to Denver, CO (DEN)?
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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
You'll find approximately 14 nonstop flights per day from Philadelphia International Airport (PHL) to Denver International Airport (DEN). For even more choices, look at flights that include layovers, as there are around 96 connecting flights per day. Some common connection points include O'Hare International (ORD), Midway International (MDW), and Seattle - Tacoma International (SEA).
What is the earliest flight from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Philadelphia International Airport (PHL) to Denver International Airport (DEN) typically departs around 5:00 AM local time. This flight is operated by American Airlines. This is a seasonal service, active in January and February. 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
You'll typically find the most flights from Philadelphia International Airport (PHL) to Denver International Airport (DEN) on a Thursday, with around 98 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, Frontier Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have a good selection of flights no matter which day you choose to fly.
What are the most popular departure times for flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Philadelphia Intl. (PHL) to Denver Intl. (DEN) are in the early morning, from 6am to 9am. Many major carriers, including Frontier Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these times because it allows for an early arrival at your destination, giving you more time to enjoy your day in Denver.
How long does it take to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
When flying from Philadelphia International Airport (PHL) to Denver International Airport (DEN), you have a few options for flight duration. A direct, non-stop flight typically takes around 4 hours 13 minutes, covering a distance of approximately 2,501 kilometers. If you opt for a flight with one stop, your travel time will generally be longer, averaging about 9 hours 14 minutes. For flights with two or more stops, you can expect the journey to take around 11 hours 47 minutes. Keep in mind that these are average times, and actual flight durations can vary based on factors like routing, weather conditions, and wind patterns.
Can you fly business or first class from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
You can fly business class or first class between PHL and DEN. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.
How do I earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) 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 Denver, CO (DEN) from Philadelphia, PA (PHL)?
If you're planning to travel to Denver from Philadelphia Intl. (PHL), you can fly directly into Denver Intl. (DEN). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Midway Intl. (MDW), or Portland Intl. (PDX) before reaching Denver. 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.) 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 Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver Intl.)?
If you booked your Philadelphia, PA (PHL-Philadelphia Intl.) to Denver, CO (DEN-Denver 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
Philadelphia Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, United
Roundtrip price
CA $445
Distance
2485 km
Average flight time
1 hour 58 mins

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