Flight OddsAA3904 ORD → BIL
American Airlines · Chicago, IL to Billings, MT · 36 flights observed, 2025-07-01 to 2025-08-05 · 1,060 mi
AA3904 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
74%
Median delay
-1 min
90th percentile
+100 min
Cancellation rate
3%
How often is AA3904 on time?
Across 36 flights on ORD → BIL from 2025-07-01 to 2025-08-05, AA3904 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +100 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 26 | 74% |
| 16-30 min | 3 | 9% |
| 31-60 min | 0 | 0% |
| 61-120 min | 3 | 9% |
| 2+ hrs | 3 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 70% | +22 min |
| 2025-08 | 5 | 100% | -22 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 6 | 100% |
| Wed | 5 | 80% |
| Thu | 4 | 50% |
| Fri | 5 | 60% |
| 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…