Route Reliability
STS → Palm Springs
STS–PSP · 478 miles · STS Airport to Palm Springs International Airport
- 82%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 2.1%
- Cancelled
- 142
- Flights in the data
Data through May 2026.
Alaska Airlines is the only airline in this data on this route, arriving on time 82% of the time across 142 flights. No comparison to make.
What the data says
The 12–3 PM departure wins.
STS–PSP flights departing between 12–3 PM arrived on time 92% of the time, versus 68% between 9 AM–12 PM.
Friday is doing you no favors.
STS–PSP flights arrived on time 89% of the time on Saturdays and just 70% on Fridays. That gap is worth planning around.
Trending in the right direction.
STS–PSP flights arrived on time 89% of the time over the last three months in the data, compared with 74% in the three months before that.
Flights on this route
The breakdown
- Mon79%(29 flights)
- Tue—(0 flights)
- Wed—(1 flights)
- Thu85%(27 flights)
- Fri70%(27 flights)
- Sat89%(27 flights)
- Sun86%(28 flights)
- 9 AM–12 PM68%(40 flights)
- 12–3 PM92%(65 flights)
- 3–6 PM79%(34 flights)
Nov 77% → Apr 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 77% | 22 |
| December 2025 | 45% | 20 |
| January 2026 | 100% | 21 |
| February 2026 | 95% | 20 |
| March 2026 | 91% | 22 |
| April 2026 | 81% | 21 |
Keep nerding
Based on 142 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.