Historical on-time performance
Ontario to New York
2,429 miData through Dec 2025Source: US DOT · BTS
Flights on ONT–JFK arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 153 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- JetBlue AirwaysOn-time76%Medianon timep9055 minCancel1.3%Flights153
Why flights run late
Delay causes
- Airline61%
- Weather0%
- Air traffic (NAS)3%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ONT → JFK
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 59% to 74% on time.
- Wednesdays74% on time · p90 65 min · 121 flights · limited
- Tuesdays70% on time · p90 100 min · 120 flights · limited
- Sundays68% on time · p90 85 min · 120 flights · limited
- Mondays68% on time · p90 100 min · 120 flights · limited
- Fridays64% on time · p90 90 min · 121 flights · limited
- Thursdays63% on time · p90 80 min · 121 flights · limited
- Saturdays59% on time · p90 105 min · 121 flights · limited
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