Cheap Flights from Philadelphia to Denver Starting at $175
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Cheapest flights from Philadelphia to Denver
Find the best Philadelphia to Denver flights fast — our engine searches over 700 airlines, 50+ agencies and 5+ top booking systems to uncover the cheapest fares, ideal schedules and flexible conditions. Compare nonstop and connecting options in seconds and book with confidence knowing you’re seeing the widest market coverage for this route.
Remember that on average the ideal time to book flights is 2 months before departure!
Fly nonstop from Philadelphia to Denver for the fastest, most convenient way to reach Colorado’s mile-high city — fewer delays, no layovers, and more time to enjoy the scenery. While connecting options can sometimes be cheaper, a direct flight saves hours and offers a smoother, more comfortable travel experience, making it a smart choice for both business and leisure trips.
Schedule of direct flights from Philadelphia to Denver
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Philadelphia to Denver:
Philadelphia airports overview
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Denver airports overview
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Frequently asked questions (FAQ)
Answers to questions about the route that travelers are most interested in.
Special offers and sales on air tickets from Philadelphia to Denver
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Alternative routes
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Cheapest one way flight
$175
Frontier Airlines
2 transfers
1d 9h 44m
11/26/2025
The cheapest one-way flight from Philadelphia to Denver departs on 11/26/2025, is operated by Frontier Airlines and costs $175
Cheapest round trip flight
$145
Frontier Airlines
Direct flight
12h 14m
12/13/2025
The cheapest roundtrip flight from Philadelphia to Denver departs on 12/13/2025, is operated by Frontier Airlines and costs $145
The fastest flight
8h 43m
Fastest flight from Philadelphia to Denver takes 8h 43m
Direct flights
No direct flights
There are no direct flights on this route.
Earliest flight
5:00 AM
Latest flight
7:40 PM
Direct flights count
64
Distance
2533km
Timezone difference
2h
The distance between Philadelphia and Denver is 2533km (1570 miles). There are 64 direct flights from Philadelphia to Denver. The time difference between Philadelphia and Denver is 2h. Flights from Philadelphia begin at 5:00 AM. The latest flight from Philadelphia departs at 7:40 PM
November 2025
Lowest price
on average:
$183
Avg Price
On the Philadelphia — Denver route, flights are operated only by Frontier Airlines. This simplifies the choice for passengers, as all tickets come from a single trusted carrier. Our service lets you instantly check fares for upcoming dates and find the most advantageous option. The minimum ticket price starts at $175, making this trip affordable for a wide range of travelers. To save even more, we recommend booking early and keeping an eye on promotions — Frontier Airlines regularly offers special deals.
Philadelphia International (PHL) is the region’s primary gateway and a mid‑sized international hub, serving legacy carriers like American Airlines alongside a mix of national and low‑cost operators. It’s about 8 miles southwest of downtown Philly; travel by SEPTA Airport Line takes roughly 25–30 minutes and usually costs in the single‑digit dollars, while taxis or rideshares can be 20–35 minutes depending on traffic and typically cost more. Ground transport also includes shuttles and rental cars. Pros: direct connections, on‑site amenities and quick rail access to center. Cons: peak‑hour road congestion and the terminal cluster can mean longer walks or waits at security.
Denver International Airport (DEN) is the region’s primary international hub, serving a mix of legacy carriers and low-cost airlines — you’ll commonly find United, Southwest and Frontier among the busiest operators. Located about 25 miles (40 km) northeast of downtown Denver, travel times can range from 35–60 minutes by car depending on traffic. Public transit includes the A Line commuter train (roughly 37 minutes to Union Station) and regional buses; fares typically run in a modest range compared with taxi or rideshare. DEN’s strengths are its extensive route network and modern facilities, while longer transfers and sometimes lengthy walks between concourses can be less convenient for tight connections.
Philadelphia — Denver • Cheap flights & Airline Tickets Starting at $175 | Flaut.Travel
We couldn't find any special offers for flights from Philadelphia to Denver
How much is the cheapest flight ticket from Philadelphia to Denver?
The cheapest flight ticket from Philadelphia to Denver according to data for the last 48 hours costs $175
When is the best time to buy air tickets on the route Philadelphia — Denver?
Often the best time to buy tickets from Philadelphia to Denver is 2 months before departure.
When is the cheapest time of year to fly from Philadelphia to Denver?
Based on statistics over the past years, the lowest prices for flights from Philadelphia to Denver can be found flying in these months: November.
How long does it take to fly from Philadelphia to Denver?
The fastest flights from Philadelphia to Denver start from 8 hours 43 minutes in the air.
Which airline can fly direct from Philadelphia to Denver?
The following airlines operate direct flights on the route Philadelphia — Denver: Frontier Airlines
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Philadelphia to Denver
