Cheap flights from Philadelphia to Denver

Philadelphia
PHL
Denver
DEN

Flight deals from Philadelphia to Denver

Below you can see the best deals on flights Philadelphia — Denver for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 19 September, from $52.

Top 10 cheap flights from Philadelphia to Denver

F9
$ 58

Philadelphia — Denver

20:37—23:04
2 Sep 2026
4 h 27 m
Direct flight
F9
F9
$ 92

Philadelphia — Denver

12:40—21:24
12 Sep 2026
10 h 44 m
1 stop
F9
F9
$ 92

Philadelphia — Denver

08:41—21:24
12 Sep 2026
14 h 43 m
1 stop
F9
F9
$ 92

Philadelphia — Denver

17:32—08:04
15 Sep 2026
16 h 32 m
1 stop
F9
F9
$ 92

Philadelphia — Denver

12:40—08:04
15 Sep 2026
21 h 24 m
1 stop
F9
F9
$ 92

Philadelphia — Denver

08:41—08:04
15 Sep 2026
25 h 23 m
1 stop
F9
F9
$ 92

Philadelphia — Denver

17:32—21:03
15 Sep 2026
29 h 31 m
1 stop
F9
F9
$ 92

Philadelphia — Denver

12:40—21:03
15 Sep 2026
34 h 23 m
1 stop
F9
F9
$ 101

Philadelphia — Denver

17:32—08:04
11 Sep 2026
16 h 32 m
1 stop
F9
F9
$ 101

Philadelphia — Denver

17:32—21:24
11 Sep 2026
29 h 52 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Philadelphia — Denver flight

Looking for cheap flights from Philadelphia to Denver? Compare fares from different airlines, check the flight schedule and travel time — and book your Philadelphia — Denver ticket online at the best price.

The route has direct flights — around 108 flights per week, flights are operated by American Airlines, Frontier Airlines, United Airlines, Southwest Airlines, a nonstop flight takes about 4 h 1 min, the distance between the cities is around 2,541 km.

Planning your trip? You may find our Denver travel guide, how to get from the airport into town and Denver weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $52Min. price
SeptemberCheapest
JunePeak season
YesDirect flights
2,541 kmDistance
4 h 1 minTravel time
4Airlines
108 / wkFlights

Flight schedule from Philadelphia to Denver

The table shows direct flights from Philadelphia to Denver on the selected date. The flight takes approximately 4 h 1 min. Regular flights are operated by American Airlines, Frontier Airlines, United Airlines and Southwest Airlines. Departures from Philadelphia International Airport and Trenton-Mercer Airport airports, arrivals at Denver International Airport and Centennial Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 15 Aug 2026

Flight ticket prices by day: Philadelphia — Denver

Below is a calendar of the lowest flight ticket prices for Philadelphia — Denver by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $52 in September, and the most expensive are around $1,251 in June. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--

Prices by month

Average one-way fares from Philadelphia to Denver by month. Tickets are usually cheapest in February (around $170) and priciest in June (about $260) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$181lowMay$226mediumSep$204medium
Feb$170lowJun$260highOct$192medium
Mar$249highJul$249highNov$170low
Apr$215mediumAug$192lowDec$238high

Some values are estimated based on seasonality.

When to fly

Weather in Denver: it is warmest in July (up to 31 °C on average) and coolest in January (around 6 °C). The driest month is November.

Tickets are usually cheapest in September and most expensive in June. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Denver

Dry and wet days · Denver

Wind speed and direction · Denver

We'll let you know if you need a visa

Enter your destination or
Your nationality
Destination

How to get the best deal on a Philadelphia — Denver ticket

  • Book ahead: fares for Philadelphia — Denver are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Philadelphia is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Denver is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Philadelphia — Denver route are operated by 4 airlines; American Airlines runs the most flights (around 40% of all flights). Compare carriers, flight shares and schedules below.

  • American AirlinesAA
    14x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight PHL → DEN14x/week
      Duration
      4h 18m
      Days
      MTWTFSS
    39.8%Open →
  • Frontier AirlinesF9
    9x/week
    WebsiteFleet: 15329M pax/year
    • Direct flight PHL → DEN9x/week
      Duration
      4h 20m
      Days
      MTWTFSS
    25.9%Open →
  • United AirlinesUA
    8x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight PHL → DEN8x/week
      Duration
      4h 6m
      Days
      MTWTFSS
    23.1%Open →
  • Southwest AirlinesWN
    4x/week
    WebsiteFleet: 817140M pax/year
    • Direct flight PHL → DEN4x/week
      Duration
      3h 53m
      Days
      MTWTFSS
    11.1%Open →

Cities and airports on the Philadelphia — Denver route

Flights Philadelphia — Denver depart from Philadelphia International Airport and Trenton-Mercer Airport and arrive at Denver International Airport and Centennial Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Philadelphia

PHL
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Denver

DEN
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

Interesting articles about Denver

Did you know that some airports have beds?Interesting

Did you know that some airports have beds?

Did you know that some airports have beds? They are intended for passengers whose flights were canceled due to bad weather or other force majeure circumstances. These unfortunate travelers are offered…

The World’s Largest CitiesInteresting

The World’s Largest Cities

If you prefer non-stop action to quiet solitude somewhere by the sea or in the mountains—this article is for you. We’ve already told you about the oldest cities in the world, and now it’s time to delv…

Filming Locations for Game of Thrones Season 8Tips for Travelers

Filming Locations for Game of Thrones Season 8

The agonizing wait will soon be over—the final season of “Game of Thrones” is about to be released. Even if you’re not familiar with ice and fire, only watched a couple of episodes of the first season…

Free Public Transport AbroadUseful information

Free Public Transport Abroad

How to get around abroad is always a tricky question. Some simply buy a day pass and spare no expense, while others prefer to walk to avoid spending extra money on “it’s only a ten-minute walk!”. But…

Interesting

Top Cosmodrome Tours

USA Cape Canaveral and Kennedy Space Center The Kennedy Space Center is one of the world’s main spaceports. A rocket park and a museum complex with space attractions are open to visitors, however, mos…

I’m fine with it: places for solo travelTips for Travelers

I’m fine with it: places for solo travel

A solo trip is not a sentence, but a gift. It’s not always possible to find a travel companion, but you shouldn’t postpone a trip to your dream city because of it. Everyone should try traveling alone…

Frequently asked questions about the Philadelphia — Denver flight

How long is the flight from Philadelphia to Denver?

A nonstop Philadelphia — Denver flight takes about 4 h 1 min — the distance between the cities is around 2,541 km.

How far is it from Philadelphia to Denver?

The distance from Philadelphia to Denver is about 2,541 km, which a nonstop flight covers in around 4 h 1 min.

Are there direct flights from Philadelphia to Denver?

Yes, there are nonstop flights Philadelphia — Denver — around 108 flights per week.

Which airlines fly from Philadelphia to Denver?

Airlines operating Philadelphia — Denver include American Airlines, Frontier Airlines, United Airlines, Southwest Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Philadelphia — Denver flights use?

Flights from Philadelphia depart from Philadelphia International Airport, Trenton-Mercer Airport, and arrive at Denver International Airport, Centennial Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Philadelphia to Denver?

The price of a Philadelphia — Denver ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in June. Tickets typically cost between $52 and $1,251. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Philadelphia — Denver?

Flights Philadelphia — Denver are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Philadelphia to Denver?

To catch a low fare Philadelphia — Denver, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Philadelphia

See all
AtlantaChicagoBostonOrlandoFort LauderdaleMiamiTorontoDetroitCharlotteWashington, D.C.RaleighDallasLos AngelesPhoenixMinneapolisSan JuanPittsburghSeattleNashvilleMontrealColumbusClevelandTampaSan FranciscoIndianapolisNorfolkCincinnatiHoustonLas VegasHarrisburgJacksonvilleRichmondHartfordSouth PortlandAlbanyRochesterKansas CityCancunPunta CanaNorth Charleston

Where else you can fly from Denver

See all
Los AngelesSeattlePhoenixNew York CitySalt Lake CitySan DiegoDallasLas VegasMinneapolisChicagoHoustonAtlantaPortlandAustinColorado SpringsSan FranciscoWashington, D.C.OrlandoKansas CityNashvilleSanta AnaDetroitOklahoma CityAspenRapid CityMiamiSacramentoAlbuquerqueSt. LouisBostonWichitaSan JoseBoiseMidlandCharlotteGrand JunctionOmahaTulsaSan AntonioLincoln

We use cookies and services to collect user information. This is essential for the functioning of the site and for marketing purposes. You can find out more in .