Washington to Philadelphia
IADTTN
Fly from Washington to Philadelphia starting at USD 372 with Mexicana de Aviaci.
Best fare available on Jul 10, 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 372
Aug
No flights
Sep
No flights
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
Trenton Mercer Airport (TTN)
Ewing Township, TTN
Zone
New York
Elev
213 ft
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