Best Time to Fly SEA to SBP: On-Time Stats by Hour & Airline
Seattle/Tacoma International → San Luis Obispo County Regional
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 82.0% of Seattle (SEA) to San Luis Obispo (SBP) flights arrived on time (220 scheduled flights). That is 4.4 points above the national average of 77.6%.
Alaska Airlines was the only reporting airline with regular flights on this route.
April has been the best month (92% on time) and Saturday the weakest day of the week (71%).
0.9% of flights were cancelled, versus 1.8% nationally.
SEA to SBP 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 |
|---|---|---|---|---|
| Alaska Airlines | 81.5% | 54 min | 1.0% | 192 |
| SkyWest Airlines | Limited data | 28 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to SBP
On-time arrival % by scheduled departure hour (local time), 639 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | Limited data | 1 | |
| 9am–10am | Limited data | 1 | |
| 10am–11am | Limited data | 2 | |
| 11am–12pm | 60.0% | 0.0% | 30 |
| 12pm–1pm | 80.7% | 0.7% | 136 |
| 1pm–2pm | 85.7% | 0.0% | 77 |
| 2pm–3pm | Limited data | 4 | |
| 3pm–4pm | 88.1% | 2.3% | 43 |
| 4pm–5pm | 77.8% | 0.3% | 291 |
| 7pm–8pm | 62.3% | 0.0% | 54 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SEA to SBP
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 | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 66.7% | -14.4 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 67.4% | -13.7 pts | 0.0% | 92 |
| All other days | 81.1% | — | 0.6% | 503 |
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).