Seattle (SEA) to San Luis Obispo (SBP): On-Time Performance
Data through July 2026
Seattle (SEA) to San Luis Obispo (SBP) is a thinner route than most in this dataset — 220 departures over the past year, roughly 4 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 78% arrived on time.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 0.60
- last 12 months
- Duration
- 2h 25m
- scheduled
- Distance
- 847 mi
Best airline from SEA to SBP
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Alaska Airlinesmost reliable | 80% | 12 min | 0.4% | 466 |
| SkyWest Airlines | 75% | 11 min | 0.4% | 235 |
Monthly on-time trend
Best time to fly from SEA to SBP
Aim for departures around 3 p.m. (88% on-time); avoid 7 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 9 min |
| Tuesdaybest | 88% | 9 min |
| Wednesday | 82% | 10 min |
| Thursday | 76% | 10 min |
| Friday | 74% | 11 min |
| Saturday | 71% | 22 min |
| Sunday | 75% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations37%
- National airspace system14%
- Weather4%
Frequently asked questions
- How often are flights from SEA to SBP delayed?
- 22% of SEA–SBP flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from SEA to SBP?
- Alaska Airlines has the best on-time record on this route at 80%, based on 466 flights. 2 airlines flew SEA–SBP frequently enough to compare in this period.
- What is the best time of day to fly from SEA to SBP?
- Departures around 3 p.m. have the best record (88% on-time), while departures around 7 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SEA to SBP?
- The scheduled SEA–SBP flight time averages 2h 25m over 847 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are SEA to SBP flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SEA to SBP?
- June 2025 was the roughest month in this dataset, with only 57% of arrivals on time. The best was April 2026 at 100%. If your dates are flexible, that 43-point gap is worth planning around.
Explore related pages
More routes from SEA
Other ways to fly to San Luis Obispo (SBP)
Related guides
Based on 701 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.