flight_takeoff DEN → PHL

Cheap Flights from Denver to Philadelphia

Compare fares on the medium-haul flight from Denver to Philadelphia — a eastbound route of about 1,554 miles, typically flown nonstop in around 3h 35m.

straighten

Distance

1,554 mi

2,501 km

schedule

Est. flight time

3h 35m

nonstop

flight

Nonstop service

Available

3 carriers

language

Time difference

2 hours ahead

Philadelphia

Flying from Denver to Philadelphia

Flights from Denver International Airport (DEN) to Philadelphia International Airport (PHL) cover roughly 1,554 miles (2,501 km) on a eastbound heading, a nonstop flight of about 3h 35m. The route crosses 2 time zones — Philadelphia is 2 hours ahead of Denver. It's served by 3 airlines.

Lets Fly Travel compares live fares across hundreds of airlines to find the best deal on this route — and every booking is reviewed by a real travel agent before ticketing.

Airlines on this route

Carriers that have operated nonstop service between DEN and PHL include:

flightAmerican Airlines flightSouthwest Airlines flightUnited Airlines

Airline availability and fares change over time — search your dates for current options.

Best time to fly Denver to Philadelphia

Fare patterns and travel conditions vary by season. Here's what to expect on the DEN–PHL route throughout the year.

Jan–Feb

Post-holiday lull means some of the lowest fares of the year on the Denver–Philadelphia route. Great for a spontaneous escape.

Mar–May

Spring break drives demand on transcontinental routes like DEN–PHL. Book at least 4–6 weeks ahead for the best prices.

Jun–Aug

Summer is the busiest season for Denver to Philadelphia travel. Mid-week flights (Tue/Wed) typically undercut weekend fares by 15–25%.

Sep–Oct

Fares often drop after Labor Day. September and October are among the cheapest months to fly this medium-haul flight.

Nov–Dec

Thanksgiving week and the Christmas/New Year period see significant fare increases. Flexibility on exact dates can save considerably.

flight_land Arriving at

Philadelphia International Airport

Philadelphia is served by Philadelphia International Airport (IATA: PHL , ICAO: KPHL). Allow time for baggage claim and ground transportation after landing.

IATA Code

PHL

Flight Time

~3h 35m

Distance

1,554 mi

tips_and_updates Arrival tips

›Check in online to save time at the airport.
›Arrive 2 hours before departure.
›Compare fares across several nearby dates for best value.

Denver to Philadelphia — FAQs

How long is the flight from Denver to Philadelphia? expand_more

A nonstop flight from Denver (DEN) to Philadelphia (PHL) takes approximately 3h 35m, covering a distance of about 1554 miles (2501 km). Actual flight time varies with aircraft, routing and winds.

Which airlines fly from Denver to Philadelphia? expand_more

Airlines that have operated nonstop service on the DEN–PHL route include American Airlines, Southwest Airlines, United Airlines. Use our search to compare current carriers, schedules and fares.

Is there a nonstop flight from Denver to Philadelphia? expand_more

Yes. The DEN–PHL route has nonstop service. Nonstop availability can vary by season and day of week, so check live results for your dates.

How far is Philadelphia from Denver? expand_more

The distance from Denver (DEN) to Philadelphia (PHL) is about 1554 miles (2501 km) as the crow flies.

What is the time difference between Denver and Philadelphia? expand_more

Philadelphia is 2 hours ahead of Denver. Factor the time change into your arrival and connection planning.

When is the best time to book flights from Denver to Philadelphia? expand_more

For domestic routes like Denver to Philadelphia, booking about 1–3 months ahead and choosing mid-week departures usually finds the best prices. Avoid peak Friday and Sunday travel where possible.