AA1820 DFW → ONT

American Airlines · Dallas/Fort Worth, TX to Ontario, CA · 276 flights observed, 2025-07-01 to 2026-04-06 · 1,188 mi

This flight's scheduled flight time has grown by 28 min since 2025-07 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

AA1820 covers more than one route in the data window — the stats below are for DFW → ONT, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
77%
Median delay
-5 min
90th percentile
+43 min
Cancellation rate
3%

How often is AA1820 on time?

Across 276 flights on DFW → ONT from 2025-07-01 to 2026-04-06, AA1820 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +43 min or later. 3% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time20877%
16-30 min207%
31-60 min239%
61-120 min93%
2+ hrs93%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073063%+12 min
2025-082969%+17 min
2025-092979%+24 min
2025-103060%+28 min
2025-112882%-9 min
2025-123177%-2 min
2026-012785%+14 min
2026-022886%-4 min
2026-033197%-15 min
2026-04667%+44 min

Performance by day of week

DayFlightsOn-time
Mon3786%
Tue3974%
Wed3982%
Thu3974%
Fri3972%
Sat3868%
Sun3884%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…