JFK → ONTNew York to Ontario

live

Direct flights from New York (JFK) to Ontario (ONT): 7 nonstop departures observed each week across 1 airline. 71% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 18 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 3,901 km, an estimated 5 hours 30 minutes in the air. Measured by Pro Flight Search from live flight boards at New York and Ontario. Updated 13 September 2026 at 16:26 UTC.

JFK New York smooth · +1
ONT Ontario smooth · +0
3,901 km · ~5h 30m est.
departs 17:597x weekly
Runs mixed · 1 airline · 7x weekly · nonstop
71% on time

of the last 7 operated JFK → ONT flights arrived within 15 minutes

Median arrival delay is −18 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−18 minacross the last 7 operated legs
Flight time~5h 30mestimated from route distance
Weekly departures7x1 direct airline on the leg

Who flies it

observed on the boards · 7 days
JetBlue AirwaysB671% on time

Flights B6355 varies daily

History

operated legs · board outcomes
09-12B6355dep +2 → arr+49
09-11B6355dep −9 → arr−11
09-10B6355dep −5 → arr−25
09-09B6355dep −5 → arr−18
09-08B6355dep −5 → arr−53
09-07B6355dep +26 → arr−24
09-06B6355dep +11 → arr+30

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
JFKNew York +1 min smooth ⛅ overcast · N 4 kt Full JFK delay board →
ONTOntario +0 min smooth ⛅ overcast · N 0 kt Full ONT delay board →

Weather lens

Current conditions put the pressure at JFK: 41% odds of a 15+ minute delay and around +13 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the New York to Ontario route actually runs

Pro Flight Search records official board updates for nonstop JFK to ONT flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — New York (JFK) to Ontario (ONT) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/JFK-ONT
How we measure this →

JFK to ONT questions

Is JFK–ONT running on time right now?

Mostly on schedule. Both endpoints currently score the same, route health score 70/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from JFK to ONT?

Great-circle distance is 3,901 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 305–364 min gate-to-gate on this route.

How often does JFK–ONT fly?

JetBlue Airways runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at JFK and arrival-side delay at ONT, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.