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

Boise, ID (BOI) to Sacramento, CA (SMF) flight delay odds

83.7% of 855 official scheduled BOI-to-SMF flights arrived on time; 8.9% 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
83.7%arrived on time
8.9%30+ min late
0.1%cancelled
855scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.7%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+1.9 mincompleted flights

Which departure time was most reliable for BOI to SMF?

Among qualifying BOI-to-SMF departure window results, Early morning had the highest on-time rate: 97.0% of 362 flights. Night was lowest at 52.1% across 48 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36297.0%1.1%0.0%
Afternoon12681.7%9.5%0.0%
Evening28173.0%16.0%0.4%
Night4852.1%29.2%0.0%

Which weekday was most reliable for BOI to SMF?

Among qualifying BOI-to-SMF weekday results, Tuesday had the highest on-time rate: 89.9% of 119 flights. Friday was lowest at 78.2% across 133 flights.

DayFlightsOn time30+ minCancelled
Monday13284.8%7.6%0.0%
Tuesday11989.9%5.9%0.0%
Wednesday11387.6%7.1%0.0%
Thursday12881.2%8.6%0.0%
Friday13378.2%14.3%0.0%
Saturday9189.0%3.3%1.1%
Sunday13978.4%12.9%0.0%

Which airline was most reliable for BOI to SMF?

Only Southwest Airlines met the BOI-to-SMF airline threshold: 83.7% of 855 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines85583.7%8.9%0.1%

Which month was most reliable for BOI to SMF?

Among qualifying BOI-to-SMF month results, February 2026 had the highest on-time rate: 92.9% of 70 flights. May 2026 was lowest at 74.6% across 67 flights.

MonthFlightsOn time30+ minCancelled
July 20258478.6%13.1%0.0%
August 20257483.8%6.8%0.0%
September 20257389.0%4.1%0.0%
October 20255882.8%10.3%0.0%
November 20257584.0%6.7%0.0%
December 20257781.8%7.8%0.0%
January 20266789.6%4.5%0.0%
February 20267092.9%2.9%0.0%
March 20266489.1%9.4%1.6%
April 20266382.5%7.9%0.0%
May 20266774.6%19.4%0.0%
June 20268378.3%13.3%0.0%

What drove BOI to SMF delay minutes?

Late aircraft was the largest recorded BOI-to-SMF delay category, accounting for 64.6% of 7,681 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.3%
Late aircraft64.6%
National airspace1.0%
Weather0.0%
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.