Cheap Flights from Islip to Washington D.C. from £68️ (ISP-WAS)

Flights from Islip to Washington D.C.

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Flights from Islip to Washington D.C. Starting at £68

We've found these cheap flights for you. You can book one-way or return flight tickets.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Islip to Washington D.C.

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From £68

Breeze Airways

From £157

ANA airlines

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Alternative Routes from Islip to Washington D.C.

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Islip to Washington D.C..

Cheapest
ISP
21:50
11h 35m
1 transfer
DCA
09:25
Long Island Macarthur Airport - Ronald Reagan Washington National Airport
Tue, Apr 30Frontier Airlines
£68
ISP
09:43
10h 0m
1 transfer
IAD
19:43
Long Island Macarthur Airport - Dulles International Airport
Tue, Apr 30Frontier Airlines
£96
ISP
09:43
10h 0m
1 transfer
IAD
19:43
Long Island Macarthur Airport - Dulles International Airport
Tue, Apr 30Frontier Airlines
£96
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How do I find the cheapest flights?

When are flight tickets from Islip (ISP) to Washington D.C. (WAS) the cheapest?
Airlines adjust prices for flights from Islip to Washington D.C. based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Islip (ISP) to Washington D.C. (WAS) cost?
According to Trip.com's data, the lowest price is around £245.
How long is the flight from Islip (ISP) to Washington D.C. (WAS)?
It takes about 1 hour 15 minutes to fly from Islip (ISP) to Washington D.C. (WAS).
What are the most popular airlines that fly from Islip (ISP) to Washington D.C. (WAS)?
Airlines with flights from Islip (ISP) to Washington D.C. (WAS): Southwest Airlines.
What's the most popular airline for direct flights from Islip (ISP) to Washington D.C. (WAS)?
Hopscotch Air operates 1 direct flights from Islip (ISP) to Washington D.C. (WAS).
How many airports in Washington D.C. (WAS)?
There are 2 airport(s) in Washington D.C. (WAS): Ronald Reagan Washington National Airport and Dulles International Airport.

How to find a cheap flight from Islip to Washington D.C.

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Islip to Washington D.C.. Book your flights at the right time and save more.

Book Early

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Compare Flight Prices

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Check One-way Fares

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Flight Information from Islip to Washington D.C.

Cheapest direct flight price	£67
Cheapest month	April
Peak season for travel	October
Flight distance	397.38km
Average flight time	1 hour 15 minutes
Popular airline	Frontier Airlines