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Route Reliability

San Antonio → San Francisco

SAT–SFO · 1,482 miles · San Antonio International Airport to San Francisco International Airport

91
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
434
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 87% of the time across 434 flights. No comparison to make.

What the data says

Morning-you made the right choice.

SAT–SFO flights departing between 6–9 AM arrived on time 90% of the time, versus 79% between 3–6 PM.

Skip Thursday if you can.

SAT–SFO flights arrived on time 92% of the time on Tuesdays. On Thursdays: 83%.

Flights on this route

The breakdown

On-time by weekday
  • Mon84%(67 flights)
  • Tue92%(64 flights)
  • Wed91%(53 flights)
  • Thu83%(64 flights)
  • Fri85%(65 flights)
  • Sat92%(49 flights)
  • Sun84%(68 flights)
On-time by departure window
  • 6–9 AM90%(306 flights)
  • 9 AM–12 PM—(6 flights)
  • 3–6 PM79%(92 flights)
  • 6–9 PM81%(26 flights)
On-time trend by month
80%
May

Jun 93% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202594%31
August 202594%31
September 202594%35
October 202582%56
November 202590%49
December 202587%46
February 202681%16
March 202694%33
April 202678%50
May 202680%45

Keep nerding

Based on 434 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.