Cheap flights from Islip to Washington, D.C.

Flights overview

Useful information for finding cheap flights from Islip to Washington, D.C. and booking your next trip
Cheapest round-trip flights $150
Frontier 1 stop 17 hr Sat, Dec 13 — Mon, Dec 15
The cheapest round-trip flight from Islip to Washington, D.C. is currently $150
Cheapest one-way flight $61
Frontier 1 stop 11 hr Sat, Dec 6
The cheapest one-way flight from Islip to Washington, D.C. is currently $61
Cheapest nonstop flights $339
Southwest Nonstop 2 hr Thu, Jan 8 — Sun, Jan 11
The cheapest nonstop round-trip flight from Islip to Washington, D.C. is currently $339
Last-minute weekend getaway $540
Frontier 1 stop 22 hr Thu, Nov 20 — Sun, Nov 23
The cheapest last-minute weekend getaway from Islip to Washington, D.C. is currently $540
Cheapest business class flights $795
Cape Air, American 1 stop 5 hr Sat, Dec 6 — Sun, Dec 7
The cheapest business class round-trip flight from Islip to Washington, D.C. is currently $795
Fastest flight 1 hr 15 min The fastest nonstop flight from Islip to Washington, D.C. takes 1 hr 15 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Islip to Washington, D.C. is typically February. The most expensive month to fly is typically July.
February
Cheapest
Typical prices: $125–350
July
Most expensive
Typical prices: $200–325

Popular airlines from Islip to Washington, D.C.

  • Southwest
    Nonstop
    from $327
    Typical price: $255–480
    21 weekly nonstop flights
    ISP - BWI Every day
    1708 weekly connecting flights
    ISP - BWI, DCA, IAD Every day
  • Frontier
    from $210
    Typical price: $170–495
    59 weekly connecting flights
    ISP - BWI, IAD Every day
  • JetBlue
    from $630
    Typical price: $345–840
    39 weekly connecting flights
    ISP - DCA Every day
  • Avelo
    5 weekly connecting flights
    ISP - BWI, IAD Every Thu, Fri, Sun
  • Breeze
    5 weekly connecting flights
    ISP - IAD Every Wed, Thu, Fri, Sat, Sun

Popular airports near Islip

  • John F. Kennedy International Airport (JFK)
    New York United States 48 min 30 mi
  • LaGuardia Airport (LGA)
    New York United States 57 min 34 mi
  • Long Island MacArthur Airport (ISP)
    Islip United States 16 min 7 mi
  • Newark Liberty International Airport (EWR)
    Newark United States 1 hr 31 min 50 mi

Popular airports near Washington, D.C.

  • Ronald Reagan Washington National Airport (DCA)
    Washington United States 17 min 4 mi
  • Dulles International Airport (IAD)
    Washington United States 52 min 22 mi
  • Baltimore/Washington International Airport (BWI)
    Baltimore United States 49 min 27 mi
  • Philadelphia International Airport (PHL)
    Philadelphia United States 2 hr 20 min 116 mi

Frequently asked questions about flying from Islip to Washington, D.C.

When are the cheapest days to fly from Islip to Washington, D.C.?
The cheapest flights from Islip to Washington, D.C. are usually in February. Typical ticket prices in February range from $125 to $350.
Which airlines provide the cheapest flights from Islip to Washington, D.C.?
The cheapest round-trip flight from Islip to Washington, D.C. recently found on Google Flights was with Frontier from $150. The cheapest one-way flight was with Frontier from $61.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Islip to Washington, D.C. is $327, flying from Jan 10 to Jan 11.
  • The cheapest Frontier flight from Islip to Washington, D.C. is $210, flying from Jan 8 to Jan 11.
  • The cheapest JetBlue flight from Islip to Washington, D.C. is $630, flying from Nov 22 to Nov 24.
What are the cheapest flights from Islip to Washington, D.C.?
The cheapest round-trip flight from Islip to Washington, D.C. starts at $150 from Sat, Dec 13 to Mon, Dec 15. The cheapest one-way flight starts at $61 and departs on Sat, Dec 6.
How long does it take to fly from Islip to Washington, D.C.?
1 hr 15 min is the shortest flight time from Islip to Washington, D.C..
When should you fly to Washington, D.C., United States?
Mid-Mar–Jun is Washington DC's busiest time, with many people timing their visits to coincide with cherry blossom season (late Mar–mid Apr). Washington DC’s conference centers and hotels also bustle while Congress is in session (Sep–Nov and mid-Jan–Jun). Jul–Aug tend to be hot and humid, while snowfall can vary widely in winter. The city’s most popular events are the annual Cherry Blossom Festival in spring, the 4th of July celebration in summer, and the lighting of the National Christmas Tree in winter.
How do I find cheap dates to fly from Islip to Washington, D.C.?
It's easy to use Google Flights to find the cheapest days to fly from Islip to Washington, D.C..
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What is the best airline to fly from Islip to Washington, D.C.?
What counts as the best airline for your flights from Islip to Washington, D.C. really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Islip to Washington, D.C..

In terms of nonstop flights, Southwest is the most popular. Southwest offers 21 nonstop flights and 1,708 connecting flights per week. Southwest flies from Long Island MacArthur Airport (ISP) to Baltimore/Washington International Airport (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .

Other popular airlines flying from Islip to Washington, D.C. are:
  • Frontier offers 59 connecting flights per week. Frontier flies from Long Island MacArthur Airport (ISP) to Baltimore/Washington International Airport (BWI) , Dulles International Airport (IAD) .
  • JetBlue offers 39 connecting flights per week. JetBlue flies from Long Island MacArthur Airport (ISP) to Ronald Reagan Washington National Airport (DCA) .
  • Avelo offers 5 connecting flights per week. Avelo flies from Long Island MacArthur Airport (ISP) to Baltimore/Washington International Airport (BWI) , Dulles International Airport (IAD) .
  • Breeze offers 5 connecting flights per week. Breeze flies from Long Island MacArthur Airport (ISP) to Dulles International Airport (IAD) .
The number of connecting flights refers to distinct flights with at least one stop between Islip and Washington, D.C..
Which airlines provide the cheapest flights from Islip to Washington, D.C.?
The cheapest round-trip flight from Islip to Washington, D.C. recently found on Google Flights was with Frontier from $150. The cheapest one-way flight was with Frontier from $61.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Islip to Washington, D.C. is $327, flying from Jan 10 to Jan 11.
  • The cheapest Frontier flight from Islip to Washington, D.C. is $210, flying from Jan 8 to Jan 11.
  • The cheapest JetBlue flight from Islip to Washington, D.C. is $630, flying from Nov 22 to Nov 24.
Which airlines have direct flights from Islip to Washington, D.C.?
Southwest flies direct from Islip to Washington, D.C..
  • There are 21 Southwest direct flights from Islip to Washington, D.C. per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
Which airline provides the cheapest last-minute getaway flight from Islip to Washington, D.C.?
The cheapest last-minute deal between Islip and Washington, D.C. at price $540 is offered by Frontier from Thu, Nov 20 to Sun, Nov 23.
Which airlines have direct flights from Islip to Washington, D.C.?
Southwest flies direct from Islip to Washington, D.C..
  • There are 21 Southwest direct flights from Islip to Washington, D.C. per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
When are direct flights from Islip to Washington, D.C. available?
There are direct flights from Islip to Washington, D.C. on a daily basis.
What are the cheapest direct flights from Islip to Washington, D.C.?
The cheapest direct (nonstop) round-trip flights between Islip and Washington, D.C. start at $339 from Thu, Jan 8 to Sun, Jan 11 with Southwest.
How can I find nonstop flights from Islip to Washington, D.C.?
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Islip to Washington, D.C., just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
What are the cheapest business class flights from Islip to Washington, D.C.?
The cheapest business class round-trip flights between Islip and Washington, D.C. start at $795 from Sat, Dec 6 to Sun, Dec 7 with Cape Air, American.
What are the cheapest economy class flights from Islip to Washington, D.C.?
The cheapest economy class round-trip flights between Islip and Washington, D.C. start at $150 from Sat, Dec 13 to Mon, Dec 15.
How can I book business class trips from Islip to Washington, D.C.?
To book business class trips from Islip to Washington, D.C., look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
Are there any last-minute deals from Islip to Washington, D.C. next weekend?
The best last-minute getaway deal for the next weekend between Islip and Washington, D.C. starts at $540 from Thu, Nov 20 to Sun, Nov 23 with Frontier.
Which airline provides the cheapest last-minute getaway flight from Islip to Washington, D.C.?
The cheapest last-minute deal between Islip and Washington, D.C. at price $540 is offered by Frontier from Thu, Nov 20 to Sun, Nov 23.
How can I find last-minute flight deals from Islip to Washington, D.C.?
To find last-minute flight deals from Islip to Washington, D.C., start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

Search more flights

Popular trips from Islip

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