Skip to content
WanderNerd
Check a flight

Route Reliability

Dallas → Ontario

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

68
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
15 min
Average arrival delay
1.5%
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 69% of the time across 408 flights. No comparison to make.

What the data says

Morning-you made the right choice.

DAL–ONT flights departing between 6–9 AM arrived on time 91% of the time, versus 59% between 6–9 PM.

Mondays have been rough.

DAL–ONT flights arrived on time 80% of the time on Saturdays and just 62% on Mondays. That gap is worth planning around.

Recent months have been rougher.

DAL–ONT flights arrived on time 65% of the time over the last three months in the data, compared with 76% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon62%(55 flights)
  • Tue70%(53 flights)
  • Wed70%(53 flights)
  • Thu75%(51 flights)
  • Fri64%(55 flights)
  • Sat80%(55 flights)
  • Sun64%(80 flights)
On-time by departure window
  • 6–9 AM91%(22 flights)
  • 9 AM–12 PM87%(31 flights)
  • 12–3 PM76%(53 flights)
  • 3–6 PM74%(86 flights)
  • 6–9 PM59%(187 flights)
  • 9 PM–12 AM61%(23 flights)
On-time trend by month
59%
May

Jun 57% → May 59% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%35
July 202562%34
August 202571%35
September 202577%34
October 202555%31
November 202577%34
December 202583%42
January 202681%32
February 202663%27
March 202677%31
April 202658%33
May 202659%34

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.