BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
STS→LAS

Santa Rosa, CA (STS) to Las Vegas, NV (LAS) flight delay odds

81.0% of 315 official scheduled STS-to-LAS flights arrived on time; 15.2% arrived at least 30 minutes late and 0.6% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
81.0%arrived on time
15.2%30+ min late
0.6%cancelled
315scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.3%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+6.3 mincompleted flights

Which departure time was most reliable for STS to LAS?

Among qualifying STS-to-LAS departure window results, Afternoon had the highest on-time rate: 81.8% of 77 flights. Late morning was lowest at 80.7% across 238 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning23880.7%16.4%0.8%
Afternoon7781.8%11.7%0.0%

Which weekday was most reliable for STS to LAS?

Among qualifying STS-to-LAS weekday results, Wednesday had the highest on-time rate: 95.2% of 42 flights. Friday was lowest at 67.4% across 46 flights.

DayFlightsOn time30+ minCancelled
Monday4678.3%17.4%0.0%
Tuesday4376.7%16.3%0.0%
Wednesday4295.2%2.4%0.0%
Thursday4778.7%19.1%0.0%
Friday4667.4%28.3%2.2%
Saturday4593.3%4.4%2.2%
Sunday4678.3%17.4%0.0%

Which airline was most reliable for STS to LAS?

Among qualifying STS-to-LAS airline results, Southwest Airlines had the highest on-time rate: 82.4% of 85 flights. SkyWest Airlines was lowest at 80.4% across 230 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines23080.4%17.0%0.9%
Southwest Airlines8582.4%10.6%0.0%

Which month was most reliable for STS to LAS?

Among qualifying STS-to-LAS month results, January 2026 had the highest on-time rate: 94.4% of 18 flights. December 2025 was lowest at 37.5% across 16 flights.

MonthFlightsOn time30+ minCancelled
September 20253083.3%10.0%0.0%
November 20252070.0%30.0%0.0%
December 20251637.5%43.8%12.5%
January 20261894.4%5.6%0.0%
February 20262479.2%20.8%0.0%
March 20263193.5%6.5%0.0%
April 20265488.9%9.3%0.0%
May 20266285.5%12.9%0.0%
June 20263971.8%17.9%0.0%

What drove STS to LAS delay minutes?

Late aircraft was the largest recorded STS-to-LAS delay category, accounting for 41.8% of 4,312 BTS-attributed delay minutes during July 2025–June 2026.

Airline20.2%
Late aircraft41.8%
National airspace23.3%
Weather14.7%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.