Best Time to Fly BOI to OAK: On-Time Stats by Hour & Airline
Boise Air Terminal → Oakland International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 83.9% of Boise (BOI) to Oakland (OAK) flights arrived on time (554 scheduled flights). That is 6.3 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
September has been the best month (92% on time) and Sunday the weakest day of the week (78%).
0.0% of flights were cancelled, versus 1.8% nationally.
BOI to OAK 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 |
|---|---|---|---|---|
| Southwest Airlines | 83.9% | 57 min | 0.0% | 554 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOI to OAK
On-time arrival % by scheduled departure hour (local time), 1,216 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 5 | |
| 6am–7am | 95.2% | 0.0% | 63 |
| 7am–8am | 95.7% | 0.0% | 208 |
| 8am–9am | Limited data | 8 | |
| 9am–10am | Limited data | 2 | |
| 10am–11am | 92.2% | 0.0% | 128 |
| 11am–12pm | 94.5% | 0.0% | 217 |
| 12pm–1pm | Limited data | 16 | |
| 1pm–2pm | Limited data | 8 | |
| 2pm–3pm | 85.0% | 0.0% | 40 |
| 3pm–4pm | 54.4% | 0.0% | 57 |
| 4pm–5pm | Limited data | 18 | |
| 5pm–6pm | 86.4% | 0.0% | 176 |
| 6pm–7pm | 72.8% | 1.1% | 186 |
| 7pm–8pm | 73.2% | 1.2% | 83 |
| 9pm–10pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOI to OAK
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) | 83.3% | -5.5 pts | 0.0% | 30 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.4% | -15.4 pts | 1.5% | 65 |
| Summer peak (Jun 15 - Aug 15) | 76.3% | -12.6 pts | 0.6% | 178 |
| All other days | 88.8% | — | 0.1% | 943 |
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).