OnTimeStats

Historical on-time performance

Santa Ana to Boise

688 miData through May 2026Source: US DOT · BTS

Flights on SNA–BOI arrive on time 90% of the time over the last 12 months.

On-time rate90%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights

based on 92 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time90%
    Medianon time
    p905 min
    Cancel2.2%
    Flights92

Why flights run late

Delay causes

  • Airline3%
  • Weather0%
  • Air traffic (NAS)17%
  • Late aircraft80%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline50%
  • Weather50%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SNA → BOI

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 78% to 78% on time.

  • Middays78% on time · p90 40 min · 341 flights
  • Afternoons78% on time · p90 30 min · 172 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 79% on time.

  • Thursdays79% on time · p90 30 min · 142 flights · limited
  • Sundays72% on time · p90 60 min · 145 flights · limited

Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.