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Route Reliability

Tucson → San Francisco

TUS–SFO · 751 miles · Tucson International Airport to San Francisco International Airport

82
Pretty Reliable
WanderNerd Reliability Score
77%
Arrive within 15 minutes
10 min
Average arrival delay
0.4%
Cancelled
992
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 77% of the time across 992 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

TUS–SFO flights departing between 12–3 PM arrived on time 80% of the time, versus 65% between 3–6 PM.

Friday is doing you no favors.

TUS–SFO flights arrived on time 84% of the time on Tuesdays. On Fridays: 69%.

Recent months have been rougher.

TUS–SFO flights arrived on time 61% of the time over the last three months in the data, compared with 75% 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
  • Mon74%(152 flights)
  • Tue84%(123 flights)
  • Wed75%(144 flights)
  • Thu76%(145 flights)
  • Fri69%(144 flights)
  • Sat83%(125 flights)
  • Sun78%(152 flights)
On-time by departure window
  • 6–9 AM78%(353 flights)
  • 9 AM–12 PM80%(86 flights)
  • 12–3 PM80%(285 flights)
  • 3–6 PM65%(48 flights)
  • 6–9 PM71%(213 flights)
On-time trend by month
45%
May

Jun 88% → May 45% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%86
July 202581%83
August 202595%75
September 202592%60
October 202575%72
November 202587%119
December 202571%89
January 202679%79
February 202674%74
March 202686%80
April 202652%85
May 202645%83

Keep nerding

Based on 992 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.