Philadelphia to Washington
PHLIAD
Fly from Philadelphia to Washington starting at USD 102 with Frontier Airlines.
Best fare available on Sep 14, 2026.
Limited seats. Better plans. Book before it's gone.
Philadelphia to Washington cheapest flights this week
Philadelphia to Washington monthly flight fare trend
Jul
No flights
Aug
from USD 121
Sep
from USD 102
Oct
No flights
Nov
No flights
Dec
No flights
Airport Details
Origin
Philadelphia
Philadelphia International Airport (PHL)
Philadelphia, PHL
Zone
New York
Elev
36 ft
Destination
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
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