WN3778 STL → HOU

Southwest Airlines · St. Louis, MO to Houston, TX · 30 flights observed, 2026-01-10 to 2026-03-02 · 687 mi

This flight has been getting more reliable recently — 2026-02's on-time rate (95%) is well above the 56% average from earlier months.

WN3778 covers more than one route in the data window — the stats below are for STL → HOU, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
83%
Median delay
-10 min
90th percentile
+21 min
Cancellation rate
0%

How often is WN3778 on time?

Across 30 flights on STL → HOU from 2026-01-10 to 2026-03-02, WN3778 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +21 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2583%
16-30 min310%
31-60 min13%
61-120 min13%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-01956%+9 min
2026-021995%-10 min
2026-032100%-21 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue1100%
WedNo data—
Thu580%
Fri580%
Sat888%
Sun683%

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