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Route

Dulles → Islip

IADDullesWashington Dulles International Airport
ISPIslipLong Island MacArthur Airport
Distance
264 mi
Estimated flight time
~1h

Same local time in Dulles and Islip.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Daily at most

On average around 1 flights a day, observed from October 2025 to September 2026.

1
flights per day
1
busiest month · Oct
53 min
measured flight time
11 / 12
months seen

Through the year

Per day, month by month

  1. –Jan2026
  2. 1Feb
  3. 1Mar
  4. 1Apr
  5. 1May
  6. 1Jun
  7. 1Jul
  8. 1Aug
  9. 1Sep
  10. 1Oct2025
  11. 1Nov
  12. 1Dec

Airlines

Who flies it

Lincoln Airlinesspring

Through the day

Departure times

Local time in Dulles. Most departures between 16:00 and 19:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 0.3Mon
  2. 0.2Tue
  3. 0.2Wed
  4. 0.2Thu
  5. 0.3Fri
  6. 0.2Sat
  7. 0.1Sun

Fleet

Aircraft observed

  1. Embraer Phenom 300E55P11%
  2. Gulfstream VGLF59%
  3. Learjet 60LJ608%
  4. Bombardier Challenger 600CL607%
  5. Cessna Citation SovereignC6805%
All the numbers in a table
MonthPer daySeenAirlines
January 2026Not seen in this month.
February 2026111–
    March 202612–
      April 202618
      • Lincoln Airlines1×
      May 202615
      • Lincoln Airlines1×
      June 202616–
        July 202616
        • Lincoln Airlines1×
        August 202614–
          September 2026114–
            October 202518
            • Lincoln Airlines1×
            November 202514–
              December 202516–

                Airlines observed on this route

                From observed callsign routes on IAD-ISP - not a booking guarantee.

                Lincoln Airlines

                LRT

                Hub: ISP Islip

                10 departure airportsView airline →

                About this route

                • Domestic route: both airports are in the same country.
                • The opposite direction has also been observed as a direct connection.
                • Direct destinations observed from Dulles: 171.
                • Direct destinations observed from Islip: 29.

                The airports on this route

                Washington Dulles International Airport

                Dulles, United StatesIAD / KIAD

                International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft

                75 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

                Airport pageAll direct destinations

                Long Island MacArthur Airport

                Islip, United StatesISP / KISP

                Regional airport · 29 direct destinations · 3 runways · longest runway 7,005 ft

                66 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

                Airport pageAll direct destinations

                Alternative airports for this journey

                Same journey, a different airport nearby - with an observed direct connection.

                IAD HVNTweed New Haven AirportNew Haven is about 34 mi from Islip.View route →IAD HPNWestchester County AirportWhite Plains is about 37 mi from Islip.View route →IAD JFKJohn F. Kennedy International AirportNew York is about 37 mi from Islip.View route →IAD LGALaGuardia AirportNew York is about 40 mi from Islip.View route →

                About the route from Dulles to Islip

                The observed direct connection between Washington Dulles International Airport (IAD) and Long Island MacArthur Airport (ISP) covers approximately 264 mi. The estimated flight time is around 1h. Lincoln Airlines has been observed on this connection in the available route data.

                Frequently asked questions about this route

                How far is Dulles from Islip by air?
                The great-circle distance between Washington Dulles International Airport and Long Island MacArthur Airport is approximately 264 mi.
                How long is the flight from Dulles to Islip?
                Based on the distance, the estimated flight time is about 1h. This is an estimate, not a schedule.
                Is there a direct connection from Dulles to Islip?
                Yes, a direct connection between IAD and ISP has been observed in our route data.
                Which airlines have been observed on this route?
                In the available route data: Lincoln Airlines.
                How often is there a flight from Dulles to Islip?
                On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 74 observed flights. Mainly Lincoln Airlines. That is an observation, not a timetable.
                What is the current time difference between Dulles and Islip?
                Same local time in Dulles and Islip.

                Where this data comes from

                The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

                The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

                Route data updated on October 11, 2026.