Historical on-time performance
St. Thomas to New York
Flights on STT–JFK arrive on time 76% of the time over the last 12 months.
based on 432 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Delta Air LinesOn-time77%Medianon timep9025 minCancel3.2%Flights186
- American AirlinesOn-time76%Medianon timep9055 minCancel2.8%Flights246
Why flights run late
Delay causes
- Airline56%
- Weather0%
- Air traffic (NAS)6%
- Late aircraft38%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline23%
- Weather54%
- Air traffic (NAS)15%
- Security8%
Most cancellations here are attributed to Weather. Shares are among 13 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly STT → JFK
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 73% to 77% on time.
- Middays77% on time · p90 50 min · 531 flights
- Afternoons76% on time · p90 40 min · 918 flights
- Evenings73% on time · p90 40 min · 168 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 82% on time.
- Tuesdays82% on time · p90 35 min · 225 flights
- Fridays80% on time · p90 40 min · 226 flights
- Wednesdays79% on time · p90 35 min · 223 flights
- Thursdays76% on time · p90 55 min · 226 flights
- Sundays75% on time · p90 35 min · 229 flights
- Mondays75% on time · p90 50 min · 225 flights
- Saturdays67% on time · p90 70 min · 263 flights
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