FlightRecord

Nashville (BNA) to Ontario (ONT): On-Time Performance

Data through July 2026

Nashville (BNA) to Ontario (ONT) is a thinner route than most in this dataset — 336 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 74% arrived on time.

On-time
74%
arrived <15 min late
Avg delay
13 min
completed flights
Cancelled
0.3%
Flights/day
0.92
last 12 months
Duration
4h 23m
scheduled
Distance
1,751 mi

Monthly on-time trend

Monthly on-time percentage for BNA to ONT flights50%75%100%August 2024: 97% on-time (31 flights)97Aug 2024September 2024: 97% on-time (30 flights)97October 2024: 97% on-time (30 flights)97November 2024: 81% on-time (21 flights)81Nov 2024December 2024: 94% on-time (17 flights)94January 2025: 89% on-time (9 flights)89February 2025: 71% on-time (17 flights)71Feb 2025March 2025: 90% on-time (29 flights)90April 2025: 80% on-time (30 flights)80May 2025: 77% on-time (31 flights)77May 2025June 2025: 47% on-time (30 flights)47July 2025: 52% on-time (31 flights)52August 2025: 84% on-time (31 flights)84Aug 2025September 2025: 73% on-time (30 flights)73October 2025: 45% on-time (31 flights)45November 2025: 90% on-time (29 flights)90Nov 2025December 2025: 71% on-time (31 flights)71January 2026: 85% on-time (14 flights)85February 2026: 68% on-time (19 flights)68Feb 2026March 2026: 86% on-time (29 flights)86April 2026: 67% on-time (30 flights)67May 2026: 68% on-time (31 flights)68May 2026June 2026: 33% on-time (30 flights)33July 2026: 68% on-time (31 flights)68

Best time to fly from BNA to ONT

Aim for departures around 11 a.m. (89% on-time); avoid 6 p.m. departures (50%).

On-time percentage by scheduled departure hour, BNA to ONT10 a.m.: 100% on-time (25 flights)1011 a.m.: 89% on-time (62 flights)1112 p.m.: 74% on-time (90 flights)121 p.m.: 76% on-time (158 flights)132 p.m.: 55% on-time (56 flights)143 p.m.: 81% on-time (68 flights)154 p.m.: 74% on-time (101 flights)165 p.m.: 48% on-time (25 flights)176 p.m.: 50% on-time (56 flights)18scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday75%10 min
Tuesday62%16 min
Wednesdaybest83%10 min
Thursday76%10 min
Friday78%11 min
Saturday73%18 min
Sunday70%15 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft46%
  • Airline operations35%
  • National airspace system13%
  • Weather5%
  • Security1%

Frequently asked questions

How often are flights from BNA to ONT delayed?
26% of BNA–ONT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 13 minutes.
What is the best time of day to fly from BNA to ONT?
Departures around 11 a.m. have the best record (89% on-time), while departures around 6 p.m. have the worst (50%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from BNA to ONT?
The scheduled BNA–ONT flight time averages 4h 23m over 1,751 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
How often are BNA to ONT flights cancelled?
0.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
What is the worst month to fly from BNA to ONT?
June 2026 was the roughest month in this dataset, with only 33% of arrivals on time. The best was August 2024 at 97%. If your dates are flexible, that 64-point gap is worth planning around.

Based on 673 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.