BOS → ISPBoston to Islip

live

Direct flights from Boston (BOS) to Islip (ISP): 7 nonstop departures observed each week across 1 airline. The median arrival is 4 minutes late. No cancellations were recorded across the 2 tracked flights. The nonstop covers 247 km, an estimated 49 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Islip. Updated 20 October 2026 at 11:00 UTC.

Today, BOS → ISP

Tue 20 Oct · local times
  1. 10:00 9K211Cape Air Sched 10:00Departure not confirmed by the board ·
  2. 18:19 9K217Cape Air Est. 19:19Departure not confirmed by the board ·

Checked BOS board 20:14

BOS Boston smooth · +0
ISP Islip tracking
247 km · ~0h 49m est.
dep bank 09:39–18:197x weekly
Running clean · 1 airline · 7x weekly · nonstop
100 / 100

route health from live BOS and ISP delay boards

Median arrival delay is +4 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+4 minacross the last 2 operated legs
Flight time~0h 49mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Cape Air

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Cape Air9K

Flights 9K211 varies daily · 9K213 varies Mo We Th Fr Sa Su · 9K217 18:19 Mo Tu We Th Sa Su

History

operated legs · board outcomes
10-199K211departed+1
10-189K213departed+4

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
BOSBoston +0 min smooth 🌤 clear · N 9 kt Full BOS delay board →
ISPIslip tracking Full ISP delay board →

How the Boston to Islip route actually runs

Pro Flight Search records official board updates for nonstop BOS to ISP flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Boston (BOS) to Islip (ISP) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/BOS-ISP
How we measure this →

BOS to ISP questions

Is BOS–ISP running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from BOS to ISP?

Great-circle distance is 247 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 47–51 min gate-to-gate on this route.

How often does BOS–ISP fly?

Cape Air runs the route with about 19 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at BOS and arrival-side delay at ISP, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.