WN1840 SMF → LAS

Southwest Airlines · Sacramento, CA to Las Vegas, NV · 50 flights observed, 2026-04-07 to 2026-06-03 · 397 mi

This flight's reliability varies a lot by day of week — 100% on-time on Saturdays vs. 63% on Fridays.

WN1840 covers more than one route in the data window — the stats below are for SMF → LAS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
82%
Median delay
-3 min
90th percentile
+22 min
Cancellation rate
0%

How often is WN1840 on time?

Across 50 flights on SMF → LAS from 2026-04-07 to 2026-06-03, WN1840 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +22 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4182%
16-30 min714%
31-60 min12%
61-120 min00%
2+ hrs12%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042186%+7 min
2026-052681%-1 min
2026-06367%+1 min

Performance by day of week

DayFlightsOn-time
Mon888%
Tue978%
Wed978%
Thu888%
Fri863%
Sat8100%
SunNo data—

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