Best Time to Fly JAC to SFO: On-Time Stats by Hour & Airline
Jackson Hole → San Francisco International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 58.5% of Jackson (JAC) to San Francisco (SFO) flights arrived on time (343 scheduled flights). That is 19.2 points below the national average of 77.6%.
SkyWest Airlines was the most punctual of the 2 airlines on the route at 72.5%, while United Airlines trailed at 52.7%.
January has been the best month (90% on time) and Sunday the weakest day of the week (55%).
1.5% of flights were cancelled, versus 1.8% nationally.
JAC 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 | 72.5% | 45 min | 2.0% | 100 |
| United Airlines | 52.7% | 85 min | 1.2% | 243 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JAC to SFO
On-time arrival % by scheduled departure hour (local time), 664 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 70.7% | 1.1% | 94 |
| 8am–9am | 36.3% | 0.8% | 125 |
| 9am–10am | 80.6% | 0.0% | 37 |
| 11am–12pm | 91.3% | 0.0% | 69 |
| 12pm–1pm | 83.3% | 3.2% | 31 |
| 1pm–2pm | 73.5% | 2.0% | 50 |
| 2pm–3pm | Limited data | 15 | |
| 3pm–4pm | 74.0% | 2.4% | 205 |
| 4pm–5pm | 41.7% | 5.3% | 38 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JAC to SFO
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 65.1% | -4.5 pts | 0.8% | 261 |
| All other days | 69.6% | — | 1.9% | 373 |
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).