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Route Reliability

Ontario → Dallas

ONT–DAL · 1,200 miles · Ontario International Airport to Dallas Love Field

80
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
8 min
Average arrival delay
1.7%
Cancelled
408
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 80% of the time across 408 flights. No comparison to make.

What the data says

The 3–6 AM departure wins.

ONT–DAL flights departing between 3–6 AM arrived on time 97% of the time, versus 63% between 9 AM–12 PM.

Friday is doing you no favors.

ONT–DAL flights arrived on time 95% of the time on Saturdays and just 67% on Fridays. That gap is worth planning around.

Recent months have been rougher.

ONT–DAL flights arrived on time 64% of the time over the last three months in the data, compared with 85% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon73%(55 flights)
  • Tue89%(54 flights)
  • Wed79%(52 flights)
  • Thu72%(50 flights)
  • Fri67%(55 flights)
  • Sat95%(55 flights)
  • Sun81%(79 flights)
On-time by departure window
  • 3–6 AM97%(39 flights)
  • 6–9 AM93%(154 flights)
  • 9 AM–12 PM63%(129 flights)
  • 12–3 PM70%(37 flights)
  • 3–6 PM73%(41 flights)
On-time trend by month
55%
May

Jun 97% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%34
July 202597%35
August 202559%34
September 202582%34
October 202587%30
November 202582%33
December 202588%42
January 202682%33
February 202686%28
March 202665%31
April 202673%33
May 202655%33

Same trip, other airports

Keep nerding

Based on 408 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.