PSP to STS flight delays
Palm Springs, CA (PSP) Santa Rosa, CA (STS) · 478 miles
142 flights · January 2025 – August 2026 · the publishing regulator
76.98%
Arrived on time
Within 15 minutes of schedule
1.41%
Cancelled
Share of scheduled flights
72 min
When late, late by
Average across delayed arrivals
18 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 38.1 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 route has been getting better. The later months in the record run 12.1 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
The two directions do not behave alike. STS to PSP arrives on time 5 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.
Only SkyWest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, SkyWest Airlines arrived on time most often on PSP to STS. Flights ran closest to schedule in May and worst in October.
Every airline on PSP 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 | 142 | 76.98% | 1.41% | 72 min | C |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
STS to PSP Santa Rosa back to Palm Springs 82.01% on time COther routes from Palm Springs
Common questions
Are flights from Palm Springs to Santa Rosa usually delayed?
76.98% of flights on the PSP to STS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Palm Springs to Santa Rosa?
Only SkyWest Airlines appears in the published record on this route, with 142 flights and 76.98% arriving on time.
How often are PSP to STS flights cancelled?
1.41% of scheduled flights did not operate — about 14 in every thousand. That is in the normal range.
What is the best month to fly Palm Springs to Santa Rosa?
January, when 90.5% of flights arrived on time. The worst was December at 52.4%.
When PSP to STS flights are late, how late are they?
About 72 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 PSP 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 →