Washington to Philadelphia
IADPHL
Fly from Washington to Philadelphia starting at USD 89 with Frontier Airlines.
Best fare available on Aug 30, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Philadelphia cheapest flights this week
Washington to Philadelphia monthly flight fare trend
Jul
from USD 97
Aug
from USD 89
Sep
from USD 117
Oct
No flights
Nov
No flights
Dec
No flights
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
Philadelphia
Philadelphia International Airport (PHL)
Philadelphia, PHL
Zone
New York
Elev
36 ft
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