PHL to DEN Flights: Explore the Mile High City from Philadelphia
Cheapest flight found
$123
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: PHL → DEN
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$123
Highest Fare
$249
Median Fare
$200
Price Spread
$126
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: May 2026 (from $123)
Most expensive month: July 2026 (from $249)
Biggest price drop caught: $67 between consecutive checks
Most frequent cheapest airline: Frontier
What This Means for You
Flights from Philadelphia to Denver range from $123 to $249, a $126 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Because prices on this route change significantly, setting up hourly price alerts gives you the best chance of catching a short-lived drop before it corrects. We have caught drops as large as $67 between hourly checks on this route.
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From
Philadelphia (PHL)
To
Denver (DEN)
Airport Information
Philadelphia (PHL)
Philadelphia International Airport (PHL) serves as a primary gateway for the Delaware Valley and is a major hub for American Airlines. Located just seven miles from downtown Philadelphia, the airport features seven terminals and a wide array of local dining options, including iconic Philly cheesesteak spots. Travelers can easily reach the airport via the SEPTA Regional Rail, making it highly accessible for those avoiding expensive parking fees or heavy traffic on I-95.
Denver (DEN)
Denver International Airport (DEN) is world-famous for its iconic tent-like roof structure, designed to mimic the snow-capped peaks of the nearby Rocky Mountains. As one of the largest airports in the world by land area, it serves as a massive hub for United, Frontier, and Southwest Airlines. Located about 25 miles from downtown, the airport provides a vast selection of amenities, including an outdoor plaza, unique art installations, and a diverse range of Colorado-inspired dining experiences.
Frequently Asked Questions
How long is the average flight from PHL to DEN?
Direct flights typically take between 3 hours and 50 minutes to 4 hours and 15 minutes, depending on wind patterns and weather conditions.
Which airlines offer nonstop service on this route?
American Airlines, United Airlines, Southwest, and Frontier Airlines frequently offer direct nonstop flights between Philadelphia and Denver.
What is the time difference between Philadelphia and Denver?
Denver is in the Mountain Time Zone, which is two hours behind Philadelphia's Eastern Time Zone.
Is it cheaper to fly into Denver on a weekday?
Generally, flying on Tuesdays or Wednesdays is more affordable than weekend travel, as there is less demand from leisure travelers and skiers.
How do I get from Denver International Airport to downtown?
The most efficient way is the RTD A-Line commuter train, which runs every 15 minutes during peak hours and takes about 37 minutes to reach Union Station.
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