WN1643 HOU → STL

Southwest Airlines · Houston, TX to St. Louis, MO · 7 flights observed, 2026-06-09 to 2026-06-30 · 687 mi

WN1643 covers more than one route in the data window — the stats below are for HOU → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
71%
Median delay
-9 min
90th percentile
+100 min
Cancellation rate
0%

How often is WN1643 on time?

Across 7 flights on HOU → STL from 2026-06-09 to 2026-06-30, WN1643 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +100 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time571%
16-30 min114%
31-60 min00%
61-120 min00%
2+ hrs114%

Performance by month

MonthFlightsOn-timeAvg delay
2026-06771%+27 min

Performance by day of week

DayFlightsOn-time
MonNo data—
Tue475%
Wed367%
ThuNo data—
FriNo data—
SatNo data—
SunNo data—

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