Flight OddsAA4309 SPI → ORD
American Airlines · Springfield, IL to Chicago, IL · 31 flights observed, 2025-11-02 to 2025-12-02 · 174 mi
AA4309 covers more than one route in the data window — the stats below are for SPI → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-8 min
90th percentile
+44 min
Cancellation rate
10%
How often is AA4309 on time?
Across 31 flights on SPI → ORD from 2025-11-02 to 2025-12-02, AA4309 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +44 min or later. 10% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 23 | 82% |
| 16-30 min | 1 | 4% |
| 31-60 min | 2 | 7% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 27 | 85% | +1 min |
| 2025-12 | 1 | 0% | +59 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 5 | 60% |
| Wed | 4 | 75% |
| Thu | 4 | 100% |
| Fri | 4 | 75% |
| Sat | 3 | 100% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…