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

Houston, TX (IAH) to Santa Ana, CA (SNA) flight delay odds

86.3% of 1,094 official scheduled IAH-to-SNA flights arrived on time; 7.6% arrived at least 30 minutes late and 0.2% 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
86.3%arrived on time
7.6%30+ min late
0.2%cancelled
1,094scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.6%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival-4.3 mincompleted flights

Which departure time was most reliable for IAH to SNA?

Among qualifying IAH-to-SNA departure window results, Late morning had the highest on-time rate: 91.4% of 417 flights. Afternoon was lowest at 82.6% across 311 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning41791.4%4.8%0.0%
Afternoon31182.6%10.0%0.0%
Evening36583.6%8.8%0.5%

Which weekday was most reliable for IAH to SNA?

Among qualifying IAH-to-SNA weekday results, Tuesday had the highest on-time rate: 94.3% of 159 flights. Sunday was lowest at 80.8% across 156 flights.

DayFlightsOn time30+ minCancelled
Monday15687.2%7.1%0.0%
Tuesday15994.3%3.1%0.0%
Wednesday15688.5%7.1%0.6%
Thursday15583.9%10.3%0.0%
Friday15684.0%7.1%0.6%
Saturday15685.3%8.3%0.0%
Sunday15680.8%10.3%0.0%

Which airline was most reliable for IAH to SNA?

Only United Airlines met the IAH-to-SNA airline threshold: 86.3% of 1,094 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines1,09486.3%7.6%0.2%

Which month was most reliable for IAH to SNA?

Among qualifying IAH-to-SNA month results, December 2025 had the highest on-time rate: 96.8% of 93 flights. June 2026 was lowest at 75.6% across 90 flights.

MonthFlightsOn time30+ minCancelled
July 20259377.4%15.1%2.2%
August 20259380.6%10.8%0.0%
September 20259087.8%7.8%0.0%
October 20259386.0%3.2%0.0%
November 20258983.1%9.0%0.0%
December 20259396.8%1.1%0.0%
January 20269391.4%4.3%0.0%
February 20268494.0%4.8%0.0%
March 20269392.5%4.3%0.0%
April 20269088.9%5.6%0.0%
May 20269381.7%10.8%0.0%
June 20269075.6%14.4%0.0%

What drove IAH to SNA delay minutes?

Airline was the largest recorded IAH-to-SNA delay category, accounting for 39.8% of 7,287 BTS-attributed delay minutes during July 2025–June 2026.

Airline39.8%
Late aircraft29.3%
National airspace14.6%
Weather16.3%
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.