Flight OddsAA4199 MSO → ORD
American Airlines · Missoula, MT to Chicago, IL · 154 flights observed, 2025-12-18 to 2026-05-20 · 1,332 mi
AA4199 covers more than one route in the data window — the stats below are for MSO → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
-9 min
90th percentile
+72 min
Cancellation rate
0%
How often is AA4199 on time?
Across 154 flights on MSO → ORD from 2025-12-18 to 2026-05-20, AA4199 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +72 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 | 107 | 70% |
| 16-30 min | 11 | 7% |
| 31-60 min | 14 | 9% |
| 61-120 min | 11 | 7% |
| 2+ hrs | 9 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 43% | +25 min |
| 2026-01 | 31 | 68% | +19 min |
| 2026-02 | 28 | 71% | +3 min |
| 2026-03 | 31 | 65% | +25 min |
| 2026-04 | 28 | 79% | +13 min |
| 2026-05 | 20 | 90% | -16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 21 | 62% |
| Tue | 22 | 82% |
| Wed | 22 | 82% |
| Thu | 21 | 71% |
| Fri | 22 | 50% |
| Sat | 22 | 82% |
| Sun | 22 | 64% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…