BOS → ACKBoston to Nantucket

live

Direct flights from Boston (BOS) to Nantucket (ACK): 7 nonstop departures observed each week across 1 airline. The median arrival is 5 minutes late. No cancellations were recorded across the 2 tracked flights. The nonstop covers 146 km, an estimated 41 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Nantucket. Updated 28 October 2026 at 16:08 UTC.

Today, BOS → ACK

Wed 28 Oct · local times
  1. 08:20 9K5011Cape Air Sched 08:20Departure not confirmed by the board ·
  2. 10:40 9K5091Cape Air Left 10:45 +5 ·
  3. 13:00 9K5311Cape Air On scheduleGate C27 · TC ·
  4. 16:05 9K5071Cape Air On scheduleGate C27 · TC ·
  5. 17:43 9K5351Cape Air On scheduleGate C27 · TC ·
  6. 18:50 9K5431Cape Air On scheduleGate C27 · TC ·

Checked BOS board 12:08

BOS Boston smooth · +0
ACK Nantucket tracking
146 km · ~0h 41m est.
dep bank 08:20–18:507x weekly
Running clean · 1 airline · 7x weekly · nonstop
100 / 100

route health from live BOS and ACK delay boards

Median arrival delay is +5 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+5 minacross the last 2 operated legs
Flight time~0h 41mestimated 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 9K5011 08:20 daily · 9K5091 10:40 Mo Tu We Th Fr Su · 9K5111 varies Fr Sa Su · 9K5171 varies Fr Su

History

operated legs · board outcomes
10-289K5091departed+5
10-279K5311departed−14

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 🌤 mostly cloudy · 5 kt Full BOS delay board →
ACKNantucket tracking Full ACK delay board →

How the Boston to Nantucket route actually runs

Pro Flight Search records official board updates for nonstop BOS to ACK 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 Nantucket (ACK) route reliability, measured from operated flights on official airport boards.

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

BOS to ACK questions

Is BOS–ACK 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.

Morning or evening flight on BOS–ACK?

Operators schedule morning departures around 08:20 and evening departures around 17:43 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ACK delay card to confirm conditions when you'd arrive.

How long is the flight from BOS to ACK?

Great-circle distance is 146 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 40–43 min gate-to-gate on this route.

How often does BOS–ACK fly?

Cape Air runs the route with about 48 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.