Best Time to Fly MRY to SFO: On-Time Stats by Hour & Airline
Monterey Regional → San Francisco International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 63.5% of Monterey (MRY) to San Francisco (SFO) flights arrived on time (733 scheduled flights). That is 14.1 points below the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (75% on time) and June the worst month (53%).
The cancellation rate was 0.6% (US average 1.8%).
MRY to SFO 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 | 63.5% | 64 min | 0.6% | 733 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MRY to SFO
On-time arrival % by scheduled departure hour (local time), 1,442 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.0% | 1.5% | 130 |
| 6am–7am | 88.6% | 0.6% | 177 |
| 7am–8am | 83.1% | 0.6% | 161 |
| 8am–9am | 44.7% | 0.0% | 199 |
| 10am–11am | Limited data | 5 | |
| 12pm–1pm | 41.5% | 1.6% | 125 |
| 2pm–3pm | 75.0% | 1.1% | 468 |
| 3pm–4pm | 37.3% | 1.5% | 68 |
| 5pm–6pm | Limited data | 16 | |
| 6pm–7pm | Limited data | 21 | |
| 7pm–8pm | 78.3% | 0.0% | 46 |
| 8pm–9pm | Limited data | 26 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MRY to SFO
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) | Limited data | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 53.5% | -19.4 pts | 2.3% | 44 |
| Summer peak (Jun 15 - Aug 15) | 63.9% | -9.0 pts | 1.1% | 283 |
| All other days | 72.9% | — | 0.9% | 1,087 |
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).