LAX to STS flight delays
Los Angeles, CA (LAX) Santa Rosa, CA (STS) · 399 miles
704 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
87.92%
Arrived on time
Within 15 minutes of schedule
2.41%
Cancelled
Share of scheduled flights
84 min
When late, late by
Average across delayed arrivals
11 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In September it ran 28.1 points more punctual than in December — 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.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 84 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
This route does better than its own airport. Departures from LAX overall run 7.8 points less punctual than this particular one — so whatever congestion LAX has, this route is largely escaping it.
Flights from Los Angeles to Santa Rosa keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, SkyWest Airlines arrived on time most often on LAX to STS. Flights ran closest to schedule in September and worst in December.
Every airline on LAX to STS
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 | 677 | 87.73% | 2.51% | 83 min | B |
| Alaska Airlines | 27 | 92.59% | 0% | 113 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
STS to LAX Santa Rosa back to Los Angeles 83.75% on time COther routes from Los Angeles
Common questions
Are flights from Los Angeles to Santa Rosa usually delayed?
87.92% of flights on the LAX to STS route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Los Angeles to Santa Rosa?
Only SkyWest Airlines appears in the published record on this route, with 677 flights and 87.73% arriving on time.
How often are LAX to STS flights cancelled?
2.41% of scheduled flights did not operate — about 24 in every thousand. That is in the normal range.
What is the best month to fly Los Angeles to Santa Rosa?
September, when 94.8% of flights arrived on time. The worst was December at 66.7%.
When LAX to STS flights are late, how late are they?
About 84 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 LAX to STS 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 →