SBP to SFO flight delays
San Luis Obispo, CA (SBP) San Francisco, CA (SFO) · 191 miles
1,145 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
62.07%
Arrived on time
Within 15 minutes of schedule
1.14%
Cancelled
Share of scheduled flights
70 min
When late, late by
Average across delayed arrivals
28 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In January it ran 45.6 points more punctual than in June — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
This is a late route. Flights from San Luis Obispo to San Francisco miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
This route does worse than its own airport. SBP as a whole runs 18.1 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
The two directions do not behave alike. SFO to SBP arrives on time 12.8 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Which airline should you fly on this route?
Over January 2025 – August 2026, SkyWest Airlines arrived on time most often on SBP to SFO. United Airlines was late most often. Flights ran closest to schedule in January and worst in June.
Every airline on SBP to SFO
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 965 | 62.33% | 1.14% | 67 min | F |
| United Airlines | 180 | 60.67% | 1.11% | 86 min | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
Common questions
Are flights from San Luis Obispo to San Francisco usually delayed?
62.07% of flights on the SBP to SFO route arrived within 15 minutes of schedule, so roughly 4 in every ten arrived late. That is worse than the average route in this record.
Which airline is most on time from San Luis Obispo to San Francisco?
SkyWest Airlines, at 62.33% on time across 965 flights. The least punctual on the route was United Airlines at 60.67%.
How often are SBP to SFO flights cancelled?
1.14% of scheduled flights did not operate — about 11 in every thousand. That is in the normal range.
What is the best month to fly San Luis Obispo to San Francisco?
January, when 80.4% of flights arrived on time. The worst was June at 34.8%.
When SBP to SFO flights are late, how late are they?
About 70 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SBP to SFO during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →