WN399 ATL → LGA

Southwest Airlines · Atlanta, GA to New York, NY · 60 flights observed, 2025-11-02 to 2026-01-05 · 762 mi

This flight's reliability varies a lot by day of week — 89% on-time on Wednesdays vs. 22% on Tuesdays.

WN399 covers more than one route in the data window — the stats below are for ATL → LGA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
50%
Median delay
+16 min
90th percentile
+139 min
Cancellation rate
2%

How often is WN399 on time?

Across 60 flights on ATL → LGA from 2025-11-02 to 2026-01-05, WN399 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +139 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2950%
16-30 min610%
31-60 min712%
61-120 min814%
2+ hrs814%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112646%+52 min
2025-122752%+47 min
2026-01560%+11 min

Performance by day of week

DayFlightsOn-time
Mon956%
Tue922%
Wed989%
Thu863%
Fri850%
Sat540%
Sun1030%

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