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

Sacramento, CA (SMF) to Houston, TX (IAH) flight delay odds

89.1% of 677 official scheduled SMF-to-IAH flights arrived on time; 5.8% arrived at least 30 minutes late and 0.1% 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
89.1%arrived on time
5.8%30+ min late
0.1%cancelled
677scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.0%all scheduled flights
120+ minutes late1.0%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+0.1 mincompleted flights

Which departure time was most reliable for SMF to IAH?

Among qualifying SMF-to-IAH departure window results, Early morning had the highest on-time rate: 94.2% of 362 flights. Afternoon was lowest at 74.0% across 146 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36294.2%1.9%0.3%
Late morning16991.1%4.7%0.0%
Afternoon14674.0%16.4%0.0%

Which weekday was most reliable for SMF to IAH?

Among qualifying SMF-to-IAH weekday results, Wednesday had the highest on-time rate: 92.1% of 101 flights. Thursday was lowest at 87.1% across 101 flights.

DayFlightsOn time30+ minCancelled
Monday10189.1%6.9%0.0%
Tuesday10288.2%4.9%0.0%
Wednesday10192.1%5.0%1.0%
Thursday10187.1%8.9%0.0%
Friday10088.0%5.0%0.0%
Saturday7887.2%6.4%0.0%
Sunday9491.5%3.2%0.0%

Which airline was most reliable for SMF to IAH?

Only United Airlines met the SMF-to-IAH airline threshold: 89.1% of 677 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines67789.1%5.8%0.1%

Which month was most reliable for SMF to IAH?

Among qualifying SMF-to-IAH month results, February 2026 had the highest on-time rate: 98.0% of 51 flights. June 2026 was lowest at 78.3% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20256180.3%13.1%0.0%
August 20256080.0%13.3%0.0%
September 20255896.6%1.7%0.0%
October 20255589.1%3.6%0.0%
November 20256095.0%1.7%0.0%
December 20254689.1%6.5%0.0%
January 20265392.5%1.9%0.0%
February 20265198.0%0.0%0.0%
March 20265592.7%3.6%1.8%
April 20265692.9%5.4%0.0%
May 20266287.1%6.5%0.0%
June 20266078.3%10.0%0.0%

What drove SMF to IAH delay minutes?

National airspace was the largest recorded SMF-to-IAH delay category, accounting for 36.3% of 5,093 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.1%
Late aircraft32.9%
National airspace36.3%
Weather0.7%
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.