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Route

Islip → Baltimore

ISPIslipLong Island MacArthur Airport
BWIBaltimoreBaltimore/Washington International Thurgood Marshall Airport
Distance
219 mi
Estimated flight time
~55m

Same local time in Islip and Baltimore.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

A couple of times a day

On average around 3 flights a day, observed from October 2025 to September 2026.

3
flights per day
5
busiest month · Jul
3
quietest month · Oct
53 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

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

Airlines

Who flies it

Southwest Airlinesall year

Through the day

Departure times

Local time in Islip. Most departures between 05:00 and 08:00.

  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. 3.1Mon
  2. 3.2Tue
  3. 3.2Wed
  4. 3.2Thu
  5. 3.5Fri
  6. 2.7Sat
  7. 2.9Sun

Fleet

Aircraft observed

  1. Boeing 737-700B73741%
  2. Boeing 737 MAX 8B38M31%
  3. Boeing 737-800B73826%
  4. Pilatus PC-12PC121%
  5. Beechcraft Beechjet 400BE400%
All the numbers in a table
MonthPer daySeenAirlines
January 2026376
  • Southwest Airlines74×
February 2026376
  • Southwest Airlines74×
March 2026372
  • Southwest Airlines72×
April 20264104
  • Southwest Airlines97×
May 20264101
  • Southwest Airlines97×
June 20264129
  • Southwest Airlines127×
July 20265138
  • Southwest Airlines133×
August 2026497
  • Southwest Airlines97×
September 20263101
  • Southwest Airlines97×
October 2025371
  • Southwest Airlines70×
November 2025383
  • Southwest Airlines81×
December 2025377
  • Southwest Airlines75×

Airlines observed on this route

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

Southwest Airlines

WN · SWA

Hub: DEN Denver

117 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 Islip: 29.
  • Direct destinations observed from Baltimore: 104.

The airports on this route

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

Baltimore/Washington International Thurgood Marshall Airport

Baltimore, United StatesBWI / KBWI

Major airport · 104 direct destinations · 3 runways · longest runway 10,502 ft

67 °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.

HVN BWITweed New Haven AirportNew Haven is about 34 mi from Islip.View route →HPN BWIWestchester County AirportWhite Plains is about 37 mi from Islip.View route →JFK BWIJohn F. Kennedy International AirportNew York is about 37 mi from Islip.View route →LGA BWILaGuardia AirportNew York is about 40 mi from Islip.View route →

About the route from Islip to Baltimore

The observed direct connection between Long Island MacArthur Airport (ISP) and Baltimore/Washington International Thurgood Marshall Airport (BWI) covers approximately 219 mi. The estimated flight time is around 55m. Southwest Airlines has been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Islip from Baltimore by air?
The great-circle distance between Long Island MacArthur Airport and Baltimore/Washington International Thurgood Marshall Airport is approximately 219 mi.
How long is the flight from Islip to Baltimore?
Based on the distance, the estimated flight time is about 55m. This is an estimate, not a schedule.
Is there a direct connection from Islip to Baltimore?
Yes, a direct connection between ISP and BWI has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Southwest Airlines.
How often is there a flight from Islip to Baltimore?
On average around 3 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,125 observed flights. Mainly Southwest Airlines. That is an observation, not a timetable.
What is the current time difference between Islip and Baltimore?
Same local time in Islip and Baltimore.

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.