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Route Reliability

Boise → San Diego

BOI–SAN · 749 miles · Boise Airport to San Diego International Airport

87
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
3 min
Average arrival delay
0.6%
Cancelled
1,078
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Alaska Airlines84%723 flights
  2. 2.Southwest Airlines80%355 flights

What the data says

Morning-you made the right choice.

BOI–SAN flights departing between 6–9 AM arrived on time 93% of the time, versus 67% between 3–6 PM.

Sunday scaries are real for this one.

BOI–SAN flights arrived on time 91% of the time on Saturdays. On Sundays: 76%.

Alaska Airlines has a slight edge here.

Alaska Airlines arrived on time 84% of the time on this route; Southwest Airlines managed 80%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon83%(164 flights)
  • Tue81%(146 flights)
  • Wed90%(144 flights)
  • Thu82%(161 flights)
  • Fri77%(158 flights)
  • Sat91%(139 flights)
  • Sun76%(155 flights)
On-time by departure window
  • 6–9 AM93%(415 flights)
  • 9 AM–12 PM—(5 flights)
  • 12–3 PM81%(220 flights)
  • 3–6 PM67%(70 flights)
  • 6–9 PM74%(357 flights)
On-time trend by month
83%
May

Jun 84% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%89
July 202587%91
August 202579%87
September 202583%84
October 202587%89
November 202582%88
December 202582%92
January 202675%71
February 202685%73
March 202679%102
April 202684%100
May 202683%101

Keep nerding

Based on 1,078 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.