WN2139 LAS → STL

Southwest Airlines · Las Vegas, NV to St. Louis, MO · 33 flights observed, 2026-03-05 to 2026-04-06 · 1,371 mi

This flight's reliability varies a lot by day of week — 100% on-time on Fridays vs. 60% on Saturdays.

WN2139 covers more than one route in the data window — the stats below are for LAS → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-2 min
90th percentile
+26 min
Cancellation rate
0%

How often is WN2139 on time?

Across 33 flights on LAS → STL from 2026-03-05 to 2026-04-06, WN2139 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +26 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2576%
16-30 min515%
31-60 min26%
61-120 min13%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032770%+5 min
2026-046100%-1 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue425%
Wed4100%
Thu580%
Fri5100%
Sat560%
Sun580%

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