Find cheap flights from Washington, D.C. to Islip from $135

In the last 3 days, the lowest price for a flight from Washington, D.C. to Islip, New York was $135 for a one-way ticket and $246 for a round-trip.

A passport is not required to fly from Washington, D.C. to Islip.

Washington, D.C. is served by 2 major airports and there is only 1 main airport in Islip. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Islip Long Island.

The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Washington, D.C. to Islip flight route.

There are nonstop flights from Washington, D.C. to Islip on a daily basis.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Islip.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Washington, D.C. with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.