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

Houston, TX (HOU) to San Diego, CA (SAN) flight delay odds

75.5% of 961 official scheduled HOU-to-SAN flights arrived on time; 14.0% arrived at least 30 minutes late and 0.7% 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 SIGNALGenerally reliable
75.5%arrived on time
14.0%30+ min late
0.7%cancelled
961scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.9%all scheduled flights
120+ minutes late1.1%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+4.6 mincompleted flights

Which departure time was most reliable for HOU to SAN?

Among qualifying HOU-to-SAN departure window results, Early morning had the highest on-time rate: 89.3% of 336 flights. Night was lowest at 54.7% across 53 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning33689.3%2.7%0.3%
Late morning6086.7%5.0%3.3%
Afternoon24367.5%19.8%0.0%
Evening26967.3%20.8%1.5%
Night5354.7%35.8%0.0%

Which weekday was most reliable for HOU to SAN?

Among qualifying HOU-to-SAN weekday results, Monday had the highest on-time rate: 79.3% of 145 flights. Sunday was lowest at 71.4% across 140 flights.

DayFlightsOn time30+ minCancelled
Monday14579.3%9.0%0.7%
Tuesday14276.8%14.1%0.7%
Wednesday13874.6%16.7%1.4%
Thursday14374.1%15.4%0.7%
Friday14376.9%12.6%0.7%
Saturday11075.5%14.5%0.0%
Sunday14071.4%16.4%0.7%

Which airline was most reliable for HOU to SAN?

Only Southwest Airlines met the HOU-to-SAN airline threshold: 75.5% of 961 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines96175.5%14.0%0.7%

Which month was most reliable for HOU to SAN?

Among qualifying HOU-to-SAN month results, August 2025 had the highest on-time rate: 93.8% of 65 flights. June 2026 was lowest at 59.3% across 86 flights.

MonthFlightsOn time30+ minCancelled
July 20258864.8%23.9%0.0%
August 20256593.8%4.6%0.0%
September 20256081.7%10.0%1.7%
October 20258777.0%13.8%1.1%
November 20258676.7%10.5%4.7%
December 20259175.8%11.0%0.0%
January 20267283.3%6.9%0.0%
February 20267190.1%8.5%0.0%
March 20268383.1%9.6%0.0%
April 20268570.6%16.5%0.0%
May 20268760.9%20.7%1.1%
June 20268659.3%26.7%0.0%

What drove HOU to SAN delay minutes?

Late aircraft was the largest recorded HOU-to-SAN delay category, accounting for 41.9% of 10,215 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.1%
Late aircraft41.9%
National airspace17.5%
Weather4.1%
Security0.4%
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.