Direct flights
from Islip (ISP)
to Washington (IAD)

Weekly schedule for flights between Long Island MacArthur (Islip, United States) and Washington Dulles Intl (Washington, United States) operated by 1 airlines.
20 weekly flights operate on this route flying 265mi in 1h48min.
Expect $3116 in average for a one-way ticket with the cheapest option at $Infinity.