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

Santa Ana, CA (SNA) to Boise, ID (BOI) flight delay odds

Historically, 84.2% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 329 flights.

HISTORICAL ROUTE SIGNALLower disruption
84.2%arrived on time
7.3%30+ min late
1.2%cancelled
329scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.0%all scheduled flights
120+ minutes late1.8%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+2.3 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Late morning13182.4%7.6%1.5%
Afternoon14285.2%5.6%0.7%
Evening5685.7%10.7%1.8%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday3989.7%5.1%0.0%
Thursday7277.8%9.7%2.8%
Friday3979.5%7.7%2.6%
Saturday4791.5%4.3%0.0%
Sunday7574.7%13.3%1.3%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines17591.4%4.0%1.1%
Allegiant Air15476.0%11.0%1.3%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20251457.1%14.3%7.1%
August 20251471.4%7.1%0.0%
September 20251291.7%8.3%0.0%
October 20251894.4%5.6%0.0%
November 20251668.8%12.5%0.0%
December 20251866.7%16.7%0.0%
January 20263691.7%0.0%0.0%
February 20263688.9%8.3%0.0%
March 20264288.1%2.4%2.4%
April 20263984.6%12.8%2.6%
May 20264288.1%2.4%2.4%
June 20264285.7%9.5%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline61.1%
Late aircraft27.2%
National airspace7.2%
Weather4.5%
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.