Historical on-time performance
Ontario to New York
2,429 miData through May 2026Source: US DOT · BTS
Flights on ONT–JFK arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights
based on 122 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- JetBlue AirwaysOn-time75%Medianon timep9065 minCancel1.6%Flights122
Why flights run late
Delay causes
- Airline68%
- Weather0%
- Air traffic (NAS)2%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 ONT → JFK
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 61% to 77% on time.
- Wednesdays77% on time · p90 45 min · 101 flights · limited
- Sundays75% on time · p90 60 min · 101 flights · limited
- Tuesdays75% on time · p90 95 min · 100 flights · limited
- Fridays72% on time · p90 65 min · 103 flights · limited
- Mondays71% on time · p90 100 min · 100 flights · limited
- Thursdays66% on time · p90 75 min · 103 flights · limited
- Saturdays61% on time · p90 90 min · 103 flights · limited
Keep exploring