Nantucket (ACK) to Boston (BOS)
Flight time
≈ 0h 59m
Bearing
328° NW
Nantucket (ACK) to Boston (BOS) is 91 miles (146 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ACK–BOS
US DOT T-100 · filed dataIn April 2026, Cape Air was the only carrier flying nonstop ACK–BOS; the Cessna C-402 was the most common aircraft at 100% of departures; flights ran 58% full.
Departures
525
April 2026
Seats
4,725
both directions
Passengers
2,758
both directions
Load factor
58.4%
passengers ÷ seats
Who flies ACK–BOS?
Cape Air was the only carrier to fly nonstop ACK–BOS in April 2026 (525 departures).
- 9K
Cape Air
525 departures · 4,725 seats
Share of departures100.0%58.4%
Load
What plane flies ACK–BOS?
In April 2026, the Cessna C-402 flew 100% of ACK–BOS departures.
- Cessna C-402
525 departures · 58.4% load
100.0%
How has ACK–BOS traffic changed?
Nonstop ACK–BOS departures fell from 862 in May 2025 to 525 in April 2026.
Monthly nonstop ACK–BOS traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
862 departures · 6,322 passengers
58.1%
Load
June 2025
1,003 departures · 9,691 passengers
62.7%
Load
July 2025
1,122 departures · 13,179 passengers
61.6%
Load
August 2025
1,143 departures · 13,787 passengers
63.7%
Load
September 2025
1,075 departures · 10,597 passengers
59.8%
Load
October 2025
693 departures · 6,686 passengers
59.7%
Load
November 2025
472 departures · 2,149 passengers
50.6%
Load
December 2025
543 departures · 2,635 passengers
53.9%
Load
January 2026
341 departures · 1,408 passengers
45.9%
Load
February 2026
281 departures · 1,249 passengers
49.4%
Load
March 2026
371 departures · 1,739 passengers
52.1%
Load
April 2026
525 departures · 2,758 passengers
58.4%
Load
By direction
The DOT files each direction separately — they rarely match.
ACK → BOS
56.6% full
263 departures · 1,340 passengers
BOS → ACK
60.1% full
262 departures · 1,418 passengers
Nonstop ACK–BOS traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Nantucket (ACK) from Boston (BOS)?
ACK to BOS is 91 miles (146 km / 79 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ACK to BOS?
A nonstop covers the 91-mile great-circle distance in roughly 0h 59m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ACK–BOS?
In April 2026, the Cessna C-402 flew the largest share of departures (100.0%).
What mileage do I earn flying ACK–BOS?
Distance-based programs credit off the 91-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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