Best Time to Fly SBP to SEA: On-Time Stats by Hour & Airline
San Luis Obispo County Regional → Seattle/Tacoma International
Data through July 2026 · Last updated October 18, 2026
220 flights were scheduled from San Luis Obispo (SBP) to Seattle (SEA) in the last 12 months, and 80.2% of those that flew arrived on time, 2.6 points above the US average of 77.6%.
Alaska Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (86% on time) and June the worst month (59%).
The cancellation rate was 1.4% (US average 1.8%).
SBP to SEA 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 | 79.4% | 56 min | 1.6% | 192 |
| SkyWest Airlines | Limited data | 28 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SBP to SEA
On-time arrival % by scheduled departure hour (local time), 640 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 87.0% | 1.8% | 55 |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | Limited data | 1 | |
| 2pm–3pm | 74.6% | 0.0% | 64 |
| 3pm–4pm | 70.8% | 0.0% | 48 |
| 4pm–5pm | 90.8% | 2.3% | 133 |
| 5pm–6pm | Limited data | 4 | |
| 6pm–7pm | 88.1% | 2.3% | 43 |
| 7pm–8pm | 70.8% | 0.7% | 291 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SBP to SEA
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) | 80.0% | +0.4 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 65.2% | -14.4 pts | 0.0% | 92 |
| All other days | 79.6% | — | 1.4% | 504 |
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).