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

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

78.7% of 676 official scheduled IAH-to-SMF flights arrived on time; 13.3% 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 SIGNALGenerally reliable
78.7%arrived on time
13.3%30+ min late
0.1%cancelled
676scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.1%all scheduled flights
120+ minutes late2.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+2.6 mincompleted flights

Which departure time was most reliable for IAH to SMF?

Among qualifying IAH-to-SMF departure window results, Late morning had the highest on-time rate: 83.3% of 312 flights. Evening was lowest at 74.7% across 364 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning31283.3%10.9%0.0%
Evening36474.7%15.4%0.3%

Which weekday was most reliable for IAH to SMF?

Among qualifying IAH-to-SMF weekday results, Tuesday had the highest on-time rate: 84.2% of 101 flights. Sunday was lowest at 67.0% across 94 flights.

DayFlightsOn time30+ minCancelled
Monday10177.2%17.8%0.0%
Tuesday10184.2%9.9%1.0%
Wednesday10181.2%9.9%0.0%
Thursday10184.2%9.9%0.0%
Friday10082.0%9.0%0.0%
Saturday7873.1%17.9%0.0%
Sunday9467.0%20.2%0.0%

Which airline was most reliable for IAH to SMF?

Only United Airlines met the IAH-to-SMF airline threshold: 78.7% of 676 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines67678.7%13.3%0.1%

Which month was most reliable for IAH to SMF?

Among qualifying IAH-to-SMF month results, February 2026 had the highest on-time rate: 94.1% of 51 flights. June 2026 was lowest at 63.3% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20256177.0%19.7%0.0%
August 20256073.3%20.0%0.0%
September 20255882.8%5.2%0.0%
October 20255574.5%12.7%0.0%
November 20256083.3%10.0%0.0%
December 20254575.6%13.3%0.0%
January 20265383.0%7.5%0.0%
February 20265194.1%5.9%0.0%
March 20265583.6%12.7%1.8%
April 20265678.6%10.7%0.0%
May 20266277.4%14.5%0.0%
June 20266063.3%25.0%0.0%

What drove IAH to SMF delay minutes?

Late aircraft was the largest recorded IAH-to-SMF delay category, accounting for 45.2% of 8,266 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.6%
Late aircraft45.2%
National airspace10.4%
Weather2.8%
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.