OnTimeRoutes
F

SkyWest Airlines SMF to SFO on-time performance

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

On-time arrivals
61%
arrived < 15 min late
Cancelled
1.8%
23 flights
Avg arrival delay
28 min
70 min when late
Rank on route
#2 of 2
route average 63% on time

Key facts

  • SkyWest Airlines flights on SMF to SFO arrived on time 61% of the time in Aug 2025 – Jul 2026.
  • 1.8% were cancelled, and 12% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 63% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (44%).

On-time trend by month

20%60%100%July 2025: 76.1% on time, 0.9% cancelledJul ’25August 2025: 68.1% on time, 0.0% cancelledAug ’25September 2025: 65.3% on time, 0.0% cancelledSep ’25October 2025: 63.4% on time, 0.0% cancelledOct ’25November 2025: 53.8% on time, 10.2% cancelledNov ’25December 2025: 64.4% on time, 1.9% cancelledDec ’25January 2026: 74.3% on time, 4.5% cancelledJan ’26February 2026: 63.0% on time, 0.9% cancelledFeb ’26March 2026: 78.1% on time, 0.0% cancelledMar ’26April 2026: 60.2% on time, 0.8% cancelledApr ’26May 2026: 47.0% on time, 2.0% cancelledMay ’26June 2026: 31.7% on time, 0.0% cancelledJun ’26July 2026: 45.9% 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

  • Air traffic control & airport congestion44%
  • Late-arriving aircraft25%
  • Airline (crew, maintenance, cleaning, fueling)24%
  • Extreme weather7%
  • Security0%

Other airlines on SMF to SFO

1,272 SkyWest Airlines flights tracked on this route; 23 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.