What’s the cost of a flight from Washington Dulles to Islip?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Washington and Islip.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which departure and arrival airports are available?

Between Washington and Islip, flight options may depend on the combination of airports available.

• Airports in Washington: Washington is connected by 3 airports - Dulles international, Ronald Reagan, Washington International.
• Airports in Islip: Islip - Long Island MacArthur is the only active airport in the area.

Sometimes flying into a nearby city can be more cost-effective. When a city has multiple airports, it’s worth comparing different flight combinations.

Adjust your flight filters for Washington Dulles – Islip

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Other popular destinations

Planning a trip to United States? These cities are popular too: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.