Flight OddsAA3817 ORD → BIL
American Airlines · Chicago, IL to Billings, MT · 33 flights observed, 2025-09-03 to 2025-10-05 · 1,060 mi
AA3817 covers more than one route in the data window — the stats below are for ORD → BIL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
+4 min
90th percentile
+32 min
Cancellation rate
0%
How often is AA3817 on time?
Across 33 flights on ORD → BIL from 2025-09-03 to 2025-10-05, AA3817 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +32 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 | 25 | 76% |
| 16-30 min | 4 | 12% |
| 31-60 min | 3 | 9% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 28 | 71% | +27 min |
| 2025-10 | 5 | 100% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 100% |
| Wed | 5 | 80% |
| Thu | 5 | 40% |
| Fri | 5 | 80% |
| Sat | 5 | 60% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…