Flight OddsAA1855 ORD → ATL
American Airlines · Chicago, IL to Atlanta, GA · 44 flights observed, 2026-04-07 to 2026-05-20 · 606 mi
AA1855 covers more than one route in the data window — the stats below are for ORD → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
59%
Median delay
+12 min
90th percentile
+104 min
Cancellation rate
0%
How often is AA1855 on time?
Across 44 flights on ORD → ATL from 2026-04-07 to 2026-05-20, AA1855 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +104 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 26 | 59% |
| 16-30 min | 3 | 7% |
| 31-60 min | 3 | 7% |
| 61-120 min | 9 | 20% |
| 2+ hrs | 3 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 24 | 50% | +33 min |
| 2026-05 | 20 | 70% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 33% |
| Tue | 7 | 57% |
| Wed | 7 | 86% |
| Thu | 6 | 33% |
| Fri | 6 | 83% |
| Sat | 6 | 50% |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…