Cheap Flights from Washington (IAD) to Islip (ISP)

Bundle Your Flight + Hotel & Save!

Featured airlines

Top nine airline logos for desktop

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Flights from Washington (IAD) to Islip (ISP)
Origin airport
Washington Dulles Intl.
Destination airport
MacArthur
Distance
263 mi

Washington to Islip Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to Islip offer the perfect respite. Not only does exploring Islip provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Washington to Islip may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Islip are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Islip more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Islip is now!

Frequently asked questions

Is it cheaper to buy a plane ticket from Dulles Intl. Airport to MacArthur Airport last minute?
Booking your journey from Dulles Intl. Airport to MacArthur Airport at the last minute could save you some dough if you strike it lucky and find a terrific deal. However, fares don’t usually get cheaper as the departure date nears. If you procrastinate, flights could also be booked up or the best seats long gone. If you’d rather play it safe, book well in advance of the date you want to leave. Don’t forget that some of the biggest bargains can be found up to 12 months in advance. If your preferred airline hasn’t released tickets yet, check back regularly as offers are updated on Expedia constantly.
What airports do you fly into for Ronkonkoma from Sterling?
From Sterling, you can travel to Ronkonkoma through MacArthur Airport (ISP), Tweed - New Haven Regional Airport (HVN) and Westchester County Airport (HPN). Do some research into which airport is best for you before making your decision. If you opt for MacArthur Airport (ISP), it’s about 2 mi southeast of the center of the city. Use the cash you save when booking your fare with Expedia to visit the city’s awesome sights, such as Lake Ronkonkoma and Stonebridge Golf Links and Country Club.
Can I change the date of my flight from IAD to ISP?
We know plans can change, so Expedia is here to help make amending your trip as easy as possible. To start, access your Washington Dulles Intl. Airport (IAD) to ISP itinerary through the Expedia Trips portal and browse the fare rules and conditions about what changes can be made. If you booked your fare in the last 24 hours, some carriers will let you cancel at no cost and book new flights. If you bought your fare more than 24 hours ago, connect with us via our Customer Service portal to see how we can help.
Islip nearby Airports
Washington nearby Airports
*Available to One Key members.