AA4377 LGA → ORD

American Airlines · New York, NY to Chicago, IL · 13 flights observed, 2025-12-18 to 2026-01-05 · 733 mi

This flight has been getting less reliable recently — 2026-01's on-time rate (60%) is well below the 86% average from earlier months.

AA4377 covers more than one route in the data window — the stats below are for LGA → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
75%
Median delay
+2 min
90th percentile
+40 min
Cancellation rate
8%

How often is AA4377 on time?

Across 13 flights on LGA → ORD from 2025-12-18 to 2026-01-05, AA4377 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +40 min or later. 8% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time975%
16-30 min18%
31-60 min18%
61-120 min18%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-12786%+5 min
2026-01560%+16 min

Performance by day of week

DayFlightsOn-time
Mon2100%
Tue1100%
Wed1100%
Thu367%
Fri250%
Sat1100%
Sun250%

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