Nonstop flights from Watertown to Philadelphia
American Airlines flies this route 1 to 2 times a day.
ARTWatertown International
287 mi · 12 flights a week
PHLPhiladelphia International
When they leave
Watertown time6:00a4:00pFirst departure 6:00 AM, last 4:00 PM
One morning flight at 6:00 AM, then two in the afternoon, 3:30 PM to 4:00 PM.
Every flight
Earliest first
Schedules last checked Sep 19, 2026. Times are local.
Flying from Watertown to Philadelphia
American Airlines is the only airline flying nonstop from Watertown to Philadelphia, 1 to 2 times a day on the Embraer ERJ-145.
There are 1 or 2 flights every day of the week. The first arrival in Philadelphia is at 7:23 AM and the last at 5:26 PM. The flight covers 287 miles.
Flying back, Philadelphia to Watertown has 12 nonstop flights a week.
Return flights
Find the cheapest day to fly from Watertown to Philadelphia.
Schedules as of Oct 9, 2026.