Houston (IAH) to Philadelphia (PHL) flights
2 airlines fly nonstop from Houston (IAH) to Philadelphia (PHL): American Airlines and United Airlines. The two airports are 1,323 miles (2,129 km) apart. American Airlines is in oneworld and United Airlines is in Star Alliance. There are also 57 ways to fly it with one stop, through Dulles, Baltimore and Knoxville and more.
Airlines flying nonstop from IAH to PHL
- American Airlinesoneworld · bookable with 9 programsWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH 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
IAH to PHL with one stop
57 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Dulles (IAD)United Airlines the whole way
- Via Baltimore (BWI)United Airlines and Frontier Airlines, then Southwest Airlines
- Via Knoxville (TYS)United Airlines, then American Airlines and Allegiant Air
- Via Washington (DCA)American Airlines the whole way
- Via Nashville (BNA)United Airlines, then American Airlines, Frontier Airlines and 1 more
- Via Birmingham (BHM)United Airlines, then American Airlines
- Via Memphis (MEM)United Airlines, then American Airlines
- Via Greenville (GSP)United Airlines, then American Airlines
- Via Atlanta (ATL)Delta Air Lines and Frontier Airlines the whole way
- Via Richmond (RIC)United Airlines, then American Airlines
- Via Charlotte (CLT)American Airlines and Frontier Airlines the whole way
- Via Louisville (SDF)United Airlines, then American Airlines
- Via Cincinnati (CVG)United Airlines, then American Airlines
- Via Raleigh/Durham (RDU)Frontier Airlines the whole way
- Via Pittsburgh (PIT)United Airlines, then American Airlines
IAH to PHL: common questions
Which airlines fly nonstop from IAH to PHL?
American Airlines (oneworld) and United Airlines (Star Alliance) fly nonstop from Houston (IAH) to Philadelphia (PHL).
How far is Houston from Philadelphia by plane?
Houston (IAH) and Philadelphia (PHL) are 1,323 miles (2,129 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAH 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 IAH 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 IAH to PHL with taxes and fees.
Where can I connect between Houston and Philadelphia?
The most direct connections are through Dulles (IAD), Baltimore (BWI), Knoxville (TYS), Washington (DCA) and Nashville (BNA). On 18 of them the same airline flies both flights, for example United Airlines through Dulles.
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.