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

San Diego, CA (SAN) to Las Vegas, NV (LAS) flight delay odds

Historically, 74.6% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 5,868 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
74.6%arrived on time
15.6%30+ min late
1.3%cancelled
5,868scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.7%all scheduled flights
120+ minutes late2.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+7.5 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning1,23491.7%5.2%0.6%
Late morning97283.5%9.8%0.3%
Afternoon1,79366.0%20.5%1.3%
Evening1,48166.4%21.3%1.6%
Night38868.3%18.6%5.2%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday92774.8%13.7%1.4%
Tuesday77783.3%10.0%0.8%
Wednesday74483.7%9.1%1.2%
Thursday92566.9%20.9%1.3%
Friday92764.0%23.8%1.7%
Saturday64883.0%10.5%0.8%
Sunday92072.0%17.4%1.8%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines3,73073.7%15.4%1.2%
SkyWest Airlines1,49177.8%14.4%1.3%
Frontier Airlines38965.0%25.4%2.1%
Spirit Airlines25882.6%10.5%1.9%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202564672.9%16.9%1.4%
August 202565676.4%14.3%0.6%
September 202561077.5%14.8%1.6%
October 202554172.6%16.3%1.3%
November 202549569.7%18.8%4.4%
December 202547572.8%16.8%0.8%
January 202640781.8%9.6%1.5%
February 202639382.7%12.0%0.0%
March 202645979.5%13.1%0.7%
April 202639974.9%14.8%0.0%
May 202640367.2%20.1%1.0%
June 202638465.9%19.5%2.3%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline23.0%
Late aircraft51.4%
National airspace21.7%
Weather3.8%
Security0.1%
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.