Routes › Santa Rosa (STS) › STS to PSP
Route · 12 months to July 2026
Santa Rosa to Palm Springs: on-time record
Charles M. Schulz - Sonoma County to Palm Springs International
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live flight status.
Flights from Santa Rosa (STS) to Palm Springs (PSP) arrived on time 80.3% of the time in the 12 months to July 2026. Reporting carriers scheduled 142 flights on the route in that period, about 0.4 a day, a distance of 478 miles.
That is 4.3 points above the national on-time share of 76.0% for the same period and 1.5 points above the 78.8% recorded for all departures from STS. Flights that did arrive were 8.0 min late on average, and 2.1% of scheduled flights were cancelled (national: 1.8%).
SkyWest Airlines is the only reporting carrier on the route, with 142 flights in the period.
By scheduled departure hour (local time at STS), flights leaving from 2 pm to 3 pm had the highest on-time share, 92.3%; those leaving from 10 am to 11 am had the lowest, 72.7%.
Of the delay minutes that carriers assigned to a BTS cause category on this route, late-arriving aircraft 36%, extreme weather 36% and air carrier 18%.
- On time 80.3%
- Arrived 15+ minutes late 17.6%
- Cancelled 2.1%
- Diverted 0.0%
Airlines on the route compared
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 142 | 100% | 80.3% | 8.0 min | 2.1% |
Carriers with at least 24 flights in the 12 months to July 2026. The on-time pill is green when a carrier is at or above the route's overall share. Regional carriers operate flights sold under larger airlines' brands; BTS lists the carrier that operated the flight.
Compared with the airports and the nation
| Measure | STS to PSP | All departures from STS | All arrivals at PSP | All reported flights |
|---|---|---|---|---|
| Arrived on time | 80.3% | 78.8% | 78.2% | 76.0% |
| Arrived 15+ minutes late | 17.6% | 19.2% | 20.3% | 21.9% |
| Cancelled | 2.1% | 1.7% | 1.2% | 1.8% |
| Diverted | 0.0% | 0.2% | 0.3% | 0.3% |
| Average arrival delay | 8.0 min | 5.6 min | 5.7 min | 8.1 min |
| Delay minutes per 100 flights | 1,451 | 1,350 | 1,388 | 1,684 |
| Scheduled flights | 142 | 5,714 | 15,072 | 7,043,858 |
12 months to July 2026. Delay minutes count late arrivals only (an early arrival is zero), so the per-100-flights row is a normalised total rather than an average of early and late.
The return direction, PSP to STS, recorded 75.4% on time across 142 flights in the same period.
Month by month
By scheduled departure hour
Delay causes
Seasonality
| Calendar month | Flights | On time | Cancelled | Avg arrival delay | Years in sample |
|---|---|---|---|---|---|
| Jan | 23 | 91.3% | 8.7% | -5.8 min | 1 |
| Feb | 20 | 95.0% | 0.0% | 1.2 min | 1 |
| Mar | 22 | 90.9% | 0.0% | 1.6 min | 1 |
| Apr | 21 | 81.0% | 0.0% | 10.2 min | 1 |
| May | 9 | 100.0% | 0.0% | -11.9 min | 1 |
| Oct | 4 | 50.0% | 0.0% | 42.8 min | 1 |
| Nov | 22 | 77.3% | 0.0% | 2.7 min | 1 |
| Dec | 21 | 42.9% | 4.8% | 41.7 min | 1 |
Each calendar month summed across the 36 months on file, so most rows combine three years. The pill compares the month with the route's own 12-month share.
Other routes from Santa Rosa (STS)
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| STS–SAN | Santa Rosa to San Diego | 1,009 | 72.5% | 9.9 min | 3.0% |
| STS–SNA | Santa Rosa to Santa Ana | 745 | 79.3% | 9.1 min | 0.8% |
| STS–LAX | Santa Rosa to Los Angeles | 726 | 82.6% | 3.4 min | 2.8% |
| STS–PHX | Santa Rosa to Phoenix | 693 | 76.5% | 10.7 min | 0.4% |
| STS–BUR | Santa Rosa to Burbank | 671 | 79.1% | 0.0 min | 2.5% |
| STS–PDX | Santa Rosa to Portland | 609 | 89.3% | -5.4 min | 1.6% |
| STS–SEA | Santa Rosa to Seattle | 463 | 75.6% | 4.6 min | 1.3% |
| STS–LAS | Santa Rosa to Las Vegas | 346 | 80.1% | 6.5 min | 0.6% |
All 12 routes and the airport record for STS · airport record for PSP
Questions and answers
How often are flights from Santa Rosa to Palm Springs on time?
80.3% of the 142 flights scheduled from STS to PSP in the 12 months to July 2026 arrived less than 15 minutes after their scheduled time. The national share for the same period was 76.0%. Cancelled and diverted flights count as not on time.
Which airline has the highest on-time share from STS to PSP?
SkyWest Airlines is the only reporting carrier with at least 60 flights on the route in the period, so there is no comparison to make.
What causes delays between Santa Rosa and Palm Springs?
For flights that arrived 15 or more minutes late, carriers attributed the delay minutes as follows: late-arriving aircraft 36%, extreme weather 36%, air carrier 18%, national aviation system 11%, security 0%. The categories are the carriers' own reports to BTS; weather that slows the wider system is usually recorded under the National Aviation System rather than extreme weather.
What time of day has the highest on-time share from STS?
Flights scheduled to leave STS from 2 pm to 3 pm arrived on time 92.3% of the time, the highest of any hour with enough flights to compare. The lowest was 10 am to 11 am at 72.7%. Delays tend to build through the day as late aircraft carry over to later flights.
Is it getting better?
The route does not have enough flights in the previous 12 months for a year-on-year comparison. The monthly chart on this page shows the months that are available.
Where does this data come from?
Every figure is computed from the Bureau of Transportation Statistics Reporting Carrier On-Time Performance files, which list each scheduled domestic flight by the carriers required to report. This page covers August 2023 to July 2026. It shows totals and averages only; it is not a live flight-status service.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026, a US government work in the public domain. Figures are totals and averages over all scheduled flights by reporting carriers on the route; no individual flight or aircraft is identified. Times are local to the departure airport. The load factor and passenger counts from the BTS T-100 series are not included in this edition. See the methodology; report processing errors through corrections.