OnTimeRoutes
A

SkyWest Airlines BOI to SJC on-time performance

SkyWest Airlines nonstop flights from Boise to San Jose · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.

On-time arrivals
93%
arrived < 15 min late
Cancelled
0.3%
1 flights
Avg arrival delay
5 min
68 min when late
Rank on route
#1 of 2
route average 86% on time

Key facts

  • SkyWest Airlines flights on BOI to SJC arrived on time 93% of the time in Aug 2025 – Jul 2026.
  • 0.3% were cancelled, and 2% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 86% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (61%).

On-time trend by month

70%85%100%July 2025: 83.9% on time, 0.0% cancelledJul ’25August 2025: 96.8% on time, 0.0% cancelledAug ’25September 2025: 83.3% on time, 0.0% cancelledSep ’25October 2025: 93.5% on time, 0.0% cancelledOct ’25November 2025: 89.7% on time, 3.3% cancelledNov ’25December 2025: 90.3% on time, 0.0% cancelledDec ’25January 2026: 96.8% on time, 0.0% cancelledJan ’26February 2026: 81.8% on time, 0.0% cancelledFeb ’26March 2026: 85.7% on time, 0.0% cancelledMar ’26April 2026: 96.6% on time, 0.0% cancelledApr ’26May 2026: 100.0% on time, 0.0% cancelledMay ’26June 2026: 96.7% on time, 0.0% cancelledJun ’26July 2026: 96.8% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)61%
  • Late-arriving aircraft29%
  • Extreme weather7%
  • Air traffic control & airport congestion3%
  • Security0%

Other airlines on BOI to SJC

328 SkyWest Airlines flights tracked on this route; 1 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.