Route Reliability
San Francisco → Tucson
SFO–TUS · 751 miles · San Francisco International Airport to Tucson International Airport
- 82%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 0.3%
- 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 82% of the time across 992 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SFO–TUS flights departing between 6–9 AM arrived on time 86% of the time, versus 70% between 12–3 PM.
Saturday has been the better bet.
A small edge: 85% on time on Saturdays against 78% on Thursdays.
It basically never cancels.
Out of 992 scheduled flights, only 0.3% were cancelled.
Ticking up lately.
SFO–TUS flights arrived on time 83% of the time over the last three months in the data, compared with 77% 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
- Mon83%(151 flights)
- Tue84%(122 flights)
- Wed84%(145 flights)
- Thu78%(146 flights)
- Fri79%(144 flights)
- Sat85%(126 flights)
- Sun81%(154 flights)
- 6–9 AM86%(323 flights)
- 12–3 PM70%(79 flights)
- 3–6 PM79%(233 flights)
- 6–9 PM83%(352 flights)
- 9 PM–12 AM—(1 flights)
Jun 90% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 86 |
| July 2025 | 87% | 83 |
| August 2025 | 84% | 75 |
| September 2025 | 85% | 60 |
| October 2025 | 82% | 74 |
| November 2025 | 79% | 120 |
| December 2025 | 75% | 87 |
| January 2026 | 76% | 80 |
| February 2026 | 79% | 75 |
| March 2026 | 89% | 79 |
| April 2026 | 83% | 86 |
| May 2026 | 77% | 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.