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Route Reliability

Nashville → Ontario

BNA–ONT · 1,751 miles · Nashville International Airport to Ontario International Airport

77
Usually Fine
WanderNerd Reliability Score
70%
Arrive within 15 minutes
10 min
Average arrival delay
0.3%
Cancelled
336
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 70% of the time across 336 flights. No comparison to make.

What the data says

Morning-you made the right choice.

BNA–ONT flights departing between 9 AM–12 PM arrived on time 87% of the time, versus 59% between 6–9 PM.

Tuesdays have been rough.

BNA–ONT flights arrived on time 82% of the time on Fridays and just 52% on Tuesdays. That gap is worth planning around.

It basically never cancels.

Out of 336 scheduled flights, only 0.3% were cancelled.

Slipping a little lately.

BNA–ONT flights arrived on time 74% of the time over the last three months in the data, compared with 79% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon71%(49 flights)
  • Tue52%(44 flights)
  • Wed74%(43 flights)
  • Thu75%(48 flights)
  • Fri82%(49 flights)
  • Sat71%(52 flights)
  • Sun64%(50 flights)
On-time by departure window
  • 9 AM–12 PM87%(38 flights)
  • 12–3 PM69%(133 flights)
  • 3–6 PM71%(108 flights)
  • 6–9 PM59%(56 flights)
On-time trend by month
68%
May

Jun 47% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%30
July 202552%31
August 202587%31
September 202577%30
October 202548%31
November 202590%29
December 202571%31
January 202692%13
February 202674%19
March 202686%29
April 202667%30
May 202668%31

Same trip, other airports

Keep nerding

Based on 336 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.