Route
PSP → STS
Palm Springs International Airport Charles M. Schulz Sonoma County Airport
478 miles
Return route STS → PSP →
Alerts at PSP and STS
How punctual is this route?
- On-time arrivals
- 77.0%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 77 min
- Flights arriving 15+ minutes late
- Flights tracked
- 142
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 42%
- Extreme weather 25%
- Airline (crew, maintenance, cleaning) 18%
- Air traffic control & airport 15%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Oct 2025
May 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 50.0% | 4 |
| November 2025 | 66.7% | 22 |
| December 2025 | 52.4% | 21 |
| January 2026 | 90.5% | 23 |
| February 2026 | 75.0% | 20 |
| March 2026 | 86.4% | 22 |
| April 2026 | 85.7% | 21 |
| May 2026 | 100.0% | 9 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 142 | 77.0% | 1.4% | 77 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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