ON TIMEBOARD

AA 2635 on time

American Airlines 2635: Dallas to Ontario at 12:30 p.m.; Ontario to Dallas at 2:39 p.m. (past 12 months). Figures below the title are for DFW → ONT, its busiest leg

On time
83%
244 flights · likely 78–87%
Cancelled
1.6%
of scheduled flights
Typical arrival
−14 min
median vs schedule
When late
+69 min
average delay
Similar flights
76%
AA, same route & hour

About 1 in 6 AA 2635 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (17%); 1.6% were cancelled. The typical flight landed 14 minutes early.

AA 2635: DFW → ONT

Scheduled to leave Dallas at 12:30 p.m. local time. Over the past year it arrived on time 83% of the time (244 flights), better than other AA flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Jun 2025: 70% on time (30 flights)70JunJul 2025: 68% on time (31 flights)68JulAug 2025: 65% on time (31 flights)65AugSep 2025: 87% on time (30 flights)87SepOct 2025: 81% on time (31 flights)81OctNov 2025: 83% on time (29 flights)83NovDec 2025: 87% on time (31 flights)87DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 94% on time (31 flights)94MarApr 2026: too few flights (6 flights)AprAug 2026: 74% on time (27 flights)74Aug

By day of week

DayFlightsOn time
Monday3678%
Tuesday3488%
Wednesday3586%
Thursday3482%
Friday3586%
Saturday3571%
Sunday3589%

Why it was late

Late inbound plane 43%Airline (crew, maintenance, ops) 28%Severe weather 18%Air traffic & airport (NAS) 11%

All flights DFW → ONT · Connecting off AA 2635? Check the risk

AA 2635: ONT → DFW

Scheduled to leave Ontario at 2:39 p.m. local time. Over the past year it arrived on time 70% of the time (240 flights), better than other AA flights on the route at that hour (67%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Jun 2025: 57% on time (30 flights)57JunJul 2025: 57% on time (30 flights)57JulAug 2025: 61% on time (31 flights)61AugSep 2025: 73% on time (30 flights)73SepOct 2025: 60% on time (30 flights)60OctNov 2025: 61% on time (28 flights)61NovDec 2025: 86% on time (29 flights)86DecJan 2026: 58% on time (31 flights)58JanFeb 2026: 68% on time (28 flights)68FebMar 2026: 71% on time (31 flights)71MarApr 2026: too few flights (6 flights)AprAug 2026: 78% on time (27 flights)78Aug

By day of week

DayFlightsOn time
Monday3672%
Tuesday3482%
Wednesday3269%
Thursday3468%
Friday3459%
Saturday3560%
Sunday3577%

Why it was late

Late inbound plane 50%Air traffic & airport (NAS) 24%Airline (crew, maintenance, ops) 23%Severe weather 2%

All flights ONT → DFW · Connecting off AA 2635? Check the risk

Questions

How often is AA 2635 from DFW to ONT late?

American Airlines 2635 from Dallas/Fort Worth, TX to Ontario, CA arrived 15 or more minutes late, was diverted or was cancelled on 17% of 244 scheduled flights between September 2025 and August 2026. 1.6% were cancelled.

How often is AA 2635 from ONT to DFW late?

American Airlines 2635 from Ontario, CA to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 30% of 240 scheduled flights between September 2025 and August 2026. 3.8% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.