Best Time to Fly SFO to TUS: On-Time Stats by Hour & Airline
San Francisco International → Tucson International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.1% of San Francisco (SFO) to Tucson (TUS) flights arrived on time (945 scheduled flights). That is in line with the national average of 77.6%.
SkyWest Airlines was the most punctual of the 2 airlines on the route at 78.4%, while United Airlines trailed at 74.6%.
April has been the best month (86% on time) and Wednesday the weakest day of the week (78%).
0.3% of flights were cancelled, versus 1.8% nationally.
SFO to TUS on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 78.4% | 66 min | 0.3% | 882 |
| United Airlines | 74.6% | 49 min | 0.0% | 63 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SFO to TUS
On-time arrival % by scheduled departure hour (local time), 1,930 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 85.5% | 0.0% | 352 |
| 9am–10am | 84.9% | 0.0% | 218 |
| 10am–11am | 76.9% | 0.0% | 52 |
| 12pm–1pm | 72.1% | 0.0% | 122 |
| 1pm–2pm | 86.4% | 1.5% | 201 |
| 3pm–4pm | Limited data | 7 | |
| 4pm–5pm | 79.7% | 1.1% | 260 |
| 5pm–6pm | Limited data | 21 | |
| 6pm–7pm | 84.3% | 0.0% | 458 |
| 7pm–8pm | 84.8% | 0.0% | 46 |
| 8pm–9pm | 72.6% | 0.5% | 191 |
| 9pm–10pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SFO to TUS
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 79.2% | -4.2 pts | 0.0% | 48 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.3% | -12.1 pts | 3.3% | 90 |
| Summer peak (Jun 15 - Aug 15) | 79.0% | -4.4 pts | 0.0% | 290 |
| All other days | 83.4% | — | 0.3% | 1,502 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).