Best Time to Fly OAK to SLC: On-Time Stats by Hour & Airline
Oakland International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
1,643 flights were scheduled from Oakland (OAK) to Salt Lake City (SLC) in the last 12 months, and 88.5% of those that flew arrived on time, 10.8 points above the US average of 77.6%.
Among 2 airlines, SkyWest Airlines led with 93.8% on time and Southwest Airlines was last with 78.3%.
Over 24 months, Saturday was the most reliable day (94% on time) and December the worst month (86%).
The cancellation rate was 0.1% (US average 1.8%).
OAK to SLC 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 | 93.8% | 70 min | 0.2% | 1,074 |
| Southwest Airlines | 78.3% | 58 min | 0.0% | 569 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly OAK to SLC
On-time arrival % by scheduled departure hour (local time), 3,545 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 96.6% | 0.0% | 263 |
| 6am–7am | 96.3% | 0.0% | 705 |
| 7am–8am | 94.2% | 0.0% | 121 |
| 8am–9am | 95.7% | 0.0% | 46 |
| 9am–10am | 92.0% | 0.0% | 87 |
| 10am–11am | Limited data | 28 | |
| 11am–12pm | 75.0% | 0.0% | 48 |
| 12pm–1pm | 94.1% | 0.3% | 747 |
| 1pm–2pm | 86.6% | 0.0% | 134 |
| 2pm–3pm | 59.5% | 0.0% | 42 |
| 3pm–4pm | Limited data | 1 | |
| 4pm–5pm | 91.3% | 0.0% | 276 |
| 5pm–6pm | 90.7% | 0.0% | 432 |
| 6pm–7pm | 85.9% | 0.0% | 156 |
| 7pm–8pm | 74.2% | 0.0% | 120 |
| 8pm–9pm | 67.3% | 0.0% | 298 |
| 9pm–10pm | Limited data | 19 | |
| 10pm–11pm | Limited data | 22 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on OAK to SLC
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) | 79.4% | -10.8 pts | 0.0% | 63 |
| Christmas & New Year (Dec 20 - Jan 3) | 84.8% | -5.3 pts | 0.0% | 132 |
| Summer peak (Jun 15 - Aug 15) | 87.7% | -2.4 pts | 0.0% | 572 |
| All other days | 90.1% | — | 0.1% | 2,778 |
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).