AA1820
American Airlines flight 1820 — Ontario (ONT) to Dallas (DFW)
On time
81%
Avg delay
~82 min
Cancelled
1.5%
AA1820 is a reliable flight. About 81% of departures arrive on time. When delays happen, the most common cause is late-arriving aircraft.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 77% | 0.0% | 84 min |
| 2026-06 | 80% | 0.0% | 62 min |
| 2026-06 | 86% | 3.4% | 82 min |
| 2026-05 | 75% | 0.0% | 269 min |
| 2026-05 | 100% | 0.0% | 0 min |
| 2026-05 | 82% | 0.0% | 32 min |
| 2026-05 | 80% | 0.0% | 55 min |
| 2026-04 | 74% | 4.2% | 139 min |
| 2026-04 | 67% | 0.0% | 148 min |
| 2026-04 | 67% | 0.0% | 138 min |
| 2026-04 | 79% | 0.0% | 70 min |
| 2026-03 | 97% | 0.0% | 66 min |
Top delay cause
late-arriving aircraft
Based on 2,426 tracked departures
Flying AA1820? Get a free briefing.
Weather, delays, and what to expect — sent to your inbox before your flight.
Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.