Denver (DEN) to Philadelphia (PHL) flights
4 airlines fly nonstop from Denver (DEN) to Philadelphia (PHL): American Airlines, Frontier Airlines, Southwest Airlines and United Airlines. The two airports are 1,553 miles (2,500 km) apart. American Airlines is in oneworld and United Airlines is in Star Alliance. There are also 72 ways to fly it with one stop, through Pittsburgh, Omaha and Columbus and more.
Airlines flying nonstop from DEN to PHL
- American Airlinesoneworld · bookable with 9 programsWho books it
- Frontier AirlinesNot in an allianceWho books it
- Southwest AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book DEN to PHL with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- Alaska Atmos RewardsBooks American Airlines
- American AAdvantageBooks American Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- British Airways ClubBooks American Airlines
- Cathay Pacific Asia MilesBooks American Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- Finnair PlusBooks American Airlines
- Iberia ClubBooks American Airlines
- JAL Mileage BankBooks American Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Qantas Frequent FlyerBooks American Airlines
- Qatar Airways Privilege ClubBooks American Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
DEN to PHL with one stop
72 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Pittsburgh (PIT)United Airlines and Southwest Airlines, then American Airlines
- Via Omaha (OMA)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Columbus (CMH)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Des Moines (DSM)Frontier Airlines, United Airlines and 1 more, then American Airlines and Allegiant Air
- Via Dayton (DAY)United Airlines, then American Airlines
- Via Indianapolis (IND)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Chicago (MDW)Southwest Airlines the whole way
- Via Cleveland (CLE)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Chicago (ORD)American Airlines, Frontier Airlines and 1 more the whole way
- Via Kansas City (MCI)American Airlines the whole way+1
- Via Detroit (DTW)Delta Air Lines and Frontier Airlines the whole way
+1 - Via Cincinnati (CVG)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Baltimore (BWI)Southwest Airlines the whole way
- Via Saint Louis (STL)Southwest Airlines the whole way
- Via Milwaukee (MKE)United Airlines and Southwest Airlines, then American Airlines
DEN to PHL: common questions
Which airlines fly nonstop from DEN to PHL?
American Airlines (oneworld), Frontier Airlines, Southwest Airlines and United Airlines (Star Alliance) fly nonstop from Denver (DEN) to Philadelphia (PHL).
How far is Denver from Philadelphia by plane?
Denver (DEN) and Philadelphia (PHL) are 1,553 miles (2,500 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book DEN to PHL award flights?
22 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, Alaska Atmos Rewards, American AAdvantage, ANA Mileage Club, Avianca LifeMiles, British Airways Club, Cathay Pacific Asia Miles and 14 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does DEN to PHL cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for DEN to PHL with taxes and fees.
Where can I connect between Denver and Philadelphia?
The most direct connections are through Pittsburgh (PIT), Omaha (OMA), Columbus (CMH), Des Moines (DSM) and Dayton (DAY). On 27 of them the same airline flies both flights, for example Southwest Airlines through Chicago.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.