OnTimeRoutes
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American Airlines ONT to DFW on-time performance

American Airlines nonstop flights from Ontario to Dallas/Fort Worth · Aug 2025 – Jul 2026

On-time arrivals
80%
arrived < 15 min late
Cancelled
2.8%
56 flights
Avg arrival delay
22 min
107 min when late
Rank on route
#1 of 2
route average 79% on time

Key facts

  • American Airlines flights on ONT to DFW arrived on time 80% of the time in Aug 2025 – Jul 2026.
  • 2.8% were cancelled, and 8% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (50%).

On-time trend by month

50%75%100%July 2025: 63.5% on time, 2.5% cancelledJul ’25August 2025: 65.0% on time, 3.2% cancelledAug ’25September 2025: 78.4% on time, 3.1% cancelledSep ’25October 2025: 78.4% on time, 1.1% cancelledOct ’25November 2025: 80.9% on time, 3.1% cancelledNov ’25December 2025: 81.5% on time, 0.0% cancelledDec ’25January 2026: 84.0% on time, 10.2% cancelledJan ’26February 2026: 87.8% on time, 1.5% cancelledFeb ’26March 2026: 86.1% on time, 1.3% cancelledMar ’26April 2026: 87.2% on time, 1.3% cancelledApr ’26May 2026: 81.4% on time, 4.2% cancelledMay ’26June 2026: 77.5% on time, 4.4% cancelledJun ’26July 2026: 79.4% on time, 1.1% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)50%
  • Late-arriving aircraft38%
  • Air traffic control & airport congestion9%
  • Extreme weather4%
  • Security0%

Other airlines on ONT to DFW

1,970 American Airlines flights tracked on this route; 56 cancelled, 19 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.