Historical on-time performance
New York to Nantucket
202 miData through Dec 2025Source: US DOT · BTS
Flights on LGA–ACK arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 334 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Republic AirwaysOn-time82%Medianon timep9025 minCancel1.8%Flights272
- JetBlue AirwaysOn-time81%Medianon timep9030 minCancel1.6%Flights62
Why flights run late
Delay causes
- Airline29%
- Weather0%
- Air traffic (NAS)23%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly LGA → ACK
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 77% to 81% on time.
- Mornings81% on time · p90 45 min · 398 flights
- Middays79% on time · p90 45 min · 674 flights
- Afternoons77% on time · p90 35 min · 253 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 84% on time.
- Tuesdays84% on time · p90 20 min · 165 flights · limited
- Thursdays82% on time · p90 30 min · 198 flights · limited
- Wednesdays82% on time · p90 40 min · 163 flights · limited
- Fridays80% on time · p90 65 min · 206 flights
- Mondays80% on time · p90 40 min · 195 flights · limited
- Saturdays75% on time · p90 40 min · 191 flights · limited
- Sundays74% on time · p90 50 min · 212 flights
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