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Route Reliability

SBP → San Francisco

SBP–SFO · 191 miles · SBP Airport to San Francisco International Airport

66
Usually Fine
WanderNerd Reliability Score
66%
Arrive within 15 minutes
18 min
Average arrival delay
1.0%
Cancelled
1,145
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 66% of the time across 1,145 flights. No comparison to make.

What the data says

The 3–6 PM departure wins.

SBP–SFO flights departing between 3–6 PM arrived on time 95% of the time, versus 57% between 6–9 AM.

Friday is doing you no favors.

SBP–SFO flights arrived on time 71% of the time on Tuesdays. On Fridays: 62%.

Recent months have been rougher.

SBP–SFO flights arrived on time 57% of the time over the last three months in the data, compared with 71% in the three months before that.

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
  • Mon66%(163 flights)
  • Tue71%(153 flights)
  • Wed63%(160 flights)
  • Thu67%(162 flights)
  • Fri62%(163 flights)
  • Sat66%(156 flights)
  • Sun67%(175 flights)
On-time by departure window
  • 3–6 AM89%(18 flights)
  • 6–9 AM57%(489 flights)
  • 9 AM–12 PM72%(68 flights)
  • 12–3 PM70%(362 flights)
  • 3–6 PM95%(43 flights)
  • 6–9 PM71%(152 flights)
On-time trend by month
49%
May

Jun 76% → May 49% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%90
July 202566%92
August 202576%92
September 202566%85
October 202561%120
November 202565%109
December 202571%86
January 202680%97
February 202663%83
March 202678%92
April 202643%90
May 202649%96

Keep nerding

Based on 1,145 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.