AA4309 BNA → ORD

American Airlines · Nashville, TN to Chicago, IL · 15 flights observed, 2025-12-18 to 2026-01-05 · 409 mi

This flight has been getting more reliable recently — 2026-01's on-time rate (100%) is well above the 50% average from earlier months.

AA4309 covers more than one route in the data window — the stats below are for BNA → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
-2 min
90th percentile
+69 min
Cancellation rate
0%

How often is AA4309 on time?

Across 15 flights on BNA → ORD from 2025-12-18 to 2026-01-05, AA4309 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +69 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1067%
16-30 min17%
31-60 min213%
61-120 min213%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121050%+23 min
2026-015100%-6 min

Performance by day of week

DayFlightsOn-time
Mon367%
TueNo data—
Wed10%
Thu250%
Fri3100%
Sat367%
Sun367%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…