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Islip to Dulles International Airport flight
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Cheap Flights from Islip to Dulles International Airport

  • One way
  • Round-trip
      • ISP9:04 PM
        19h 50m
        1 stop
        IAD4:54 PM
        Islip - Washington D.C.|Wed, Mar 19|Frontier Airlines
        $67$183
        63% OFF
        63% OFF
        $183$67

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Wed, Mar 19, arriving at Dulles International Airport. One-way Prices start from $67 including taxes and charges.

      • ISP9:04 PM
        19h 50m
        1 stop
        IAD4:54 PM
        Islip - Washington D.C.|Mon, Mar 17|Frontier Airlines
        $96$183
        48% OFF
        48% OFF
        $183$96

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Mon, Mar 17, arriving at Dulles International Airport. One-way Prices start from $96 including taxes and charges.

      • ISP9:04 PM
        18h 6m
        1 stop
        IAD3:10 PM
        Islip - Washington D.C.|Thu, Mar 27|Frontier Airlines
        $109$183
        41% OFF
        41% OFF
        $183$109

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Thu, Mar 27, arriving at Dulles International Airport. One-way Prices start from $109 including taxes and charges.

      • ISP8:51 PM
        20h 22m
        1 stop
        IAD5:13 PM
        Islip - Washington D.C.|Sun, Mar 16|Frontier Airlines
        $121
        $121

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Sun, Mar 16, arriving at Dulles International Airport. One-way Prices start from $121 including taxes and charges.

      • ISP9:17 AM
        7h 37m
        1 stop
        IAD4:54 PM
        Islip - Washington D.C.|Sat, Mar 29|Frontier Airlines
        $125
        $125

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Sat, Mar 29, arriving at Dulles International Airport. One-way Prices start from $125 including taxes and charges.

      • ISP8:35 PM
        20h 19m
        1 stop
        IAD4:54 PM
        Islip - Washington D.C.|Wed, Mar 19|Jetblue Airways
        $128
        $128

        Choose Jetblue Airways flights from Islip to Washington D.C.. The one-way connecting flight with Jetblue Airways departs from Long Island Macarthur Airport on Wed, Mar 19, arriving at Dulles International Airport. One-way Prices start from $128 including taxes and charges.

      • ISP9:04 PM
        18h 6m
        1 stop
        IAD3:10 PM
        Islip - Washington D.C.|Thu, Mar 20|Frontier Airlines
        $130
        $130

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Thu, Mar 20, arriving at Dulles International Airport. One-way Prices start from $130 including taxes and charges.

      • ISP8:35 PM
        20h 38m
        1 stop
        IAD5:13 PM
        Islip - Washington D.C.|Sun, Mar 16|Jetblue Airways
        $138
        $138

        Choose Jetblue Airways flights from Islip to Washington D.C.. The one-way connecting flight with Jetblue Airways departs from Long Island Macarthur Airport on Sun, Mar 16, arriving at Dulles International Airport. One-way Prices start from $138 including taxes and charges.

      • ISP9:04 PM
        19h 50m
        1 stop
        IAD4:54 PM
        Islip - Washington D.C.|Fri, Mar 28|Frontier Airlines
        $146
        $146

        Choose Frontier Airlines flights from Islip to Washington D.C.. The one-way connecting flight with Frontier Airlines departs from Long Island Macarthur Airport on Fri, Mar 28, arriving at Dulles International Airport. One-way Prices start from $146 including taxes and charges.

      • ISP8:35 PM
        18h 35m
        1 stop
        IAD3:10 PM
        Islip - Washington D.C.|Thu, Mar 27|Jetblue Airways
        $164
        $164

        Choose Jetblue Airways flights from Islip to Washington D.C.. The one-way connecting flight with Jetblue Airways departs from Long Island Macarthur Airport on Thu, Mar 27, arriving at Dulles International Airport. One-way Prices start from $164 including taxes and charges.

      • ISP1:00 PM
        3h 5m
        Nonstop
        IAD2:00 PM
        Islip - Washington D.C.|Fri, Mar 21|Frontier Airlines
        Find More Flights
        Find More Flights

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

There are 1 airport(s) in Islip. Discover the top routes now!

  • 0.7 km from downtown Islip
    Long Island Macarthur Airport
    Tickets From
    $67

Flight Schedule from Islip to Dulles International Airport

Flight info.
Departure
Arrival
Weekly Schedule

  1. F92447

    Frontier Airlines

    6:00 AM

    ISP

    3.1h

    9:08 AM

    PBI

    SMTWTFS
    Search

  2. UA6184

    United Airlines

    1:45 PM

    PBI

    2.5h

    4:14 PM

    IAD

    SMTWTFS

  3. F93323

    Frontier Airlines

    7:13 PM

    ISP

    3.0h

    10:11 PM

    TPA

    ---W-FS
    Search

  4. F92954

    Frontier Airlines

    1:01 PM

    TPA

    2.3h

    3:17 PM

    IAD

    SMTWTFS

  5. F91237

    Frontier Airlines

    8:26 PM

    ISP

    3.0h

    11:23 PM

    MCO

    S---T-S
    Search

  6. F94812

    Frontier Airlines

    2:41 PM

    MCO

    2.2h

    4:54 PM

    IAD

    SMTWTFS

  7. B6547

    Jetblue Airways

    8:35 PM

    ISP

    2.9h

    11:30 PM

    MCO

    SMTWTFS
    Search

  8. F94812

    Frontier Airlines

    2:41 PM

    MCO

    2.2h

    4:54 PM

    IAD

    SMTWTFS

  9. B6547

    Jetblue Airways

    8:35 PM

    ISP

    2.9h

    11:30 PM

    MCO

    SMTWTFS
    Search

  10. UA2065

    United Airlines

    1:51 PM

    MCO

    2.2h

    4:03 PM

    IAD

    SMTWTFS

  11. F93941

    Frontier Airlines

    9:04 PM

    ISP

    3.1h

    12:10 AM

    MCO

    -----F-
    Search

  12. UA413

    United Airlines

    4:10 PM

    MCO

    2.3h

    6:29 PM

    IAD

    SMTWTFS

  13. F93941

    Frontier Airlines

    9:04 PM

    ISP

    3.1h

    12:10 AM

    MCO

    -----F-
    Search

  14. F94812

    Frontier Airlines

    2:41 PM

    MCO

    2.2h

    4:54 PM

    IAD

    SMTWTFS

  15. F93055

    Frontier Airlines

    9:07 AM

    ISP

    3.0h

    12:09 PM

    MCO

    SMTW-F-
    Search

  16. UA413

    United Airlines

    4:10 PM

    MCO

    2.3h

    6:29 PM

    IAD

    SMTWTFS

  17. F93055

    Frontier Airlines

    9:07 AM

    ISP

    3.0h

    12:09 PM

    MCO

    SMTW-F-
    Search

  18. F94812

    Frontier Airlines

    2:41 PM

    MCO

    2.2h

    4:54 PM

    IAD

    SMTWTFS

  19. F93055

    Frontier Airlines

    9:07 AM

    ISP

    3.0h

    12:09 PM

    MCO

    SMTW-F-
    Search

  20. UA1689

    United Airlines

    9:00 AM

    MCO

    2.3h

    11:16 AM

    IAD

    SMTWTFS
Find more flights and airlines

Flight Info of Flights from Islip to Dulles International Airport

Cheapest nonstop flight price$67
Off-season for travelMarch
Peak season for travelApril

FAQs for Islip to Dulles International Airport 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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Islip (ISP) to Washington D.C. (WAS) cost?

    According to Trip.com's data, the lowest price is around $371.

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