Route Reliability
Palm Springs → STS
PSP–STS · 478 miles · Palm Springs International Airport to STS Airport
- 77%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 1.4%
- 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 77% of the time across 142 flights. No comparison to make.
What the data says
Morning flights do better here.
PSP–STS flights departing between 9 AM–12 PM arrived on time 88% of the time, versus 68% between 12–3 PM.
Monday is the weak spot.
PSP–STS flights arrived on time 82% of the time on Sundays. On Mondays: 72%.
Trending in the right direction.
PSP–STS flights arrived on time 82% of the time over the last three months in the data, compared with 70% in the three months before that.
Flights on this route
The breakdown
- Mon72%(29 flights)
- Tue—(0 flights)
- Wed—(1 flights)
- Thu74%(27 flights)
- Fri79%(28 flights)
- Sat77%(26 flights)
- Sun82%(28 flights)
- 9 AM–12 PM88%(40 flights)
- 12–3 PM68%(41 flights)
- 3–6 PM76%(58 flights)
Nov 67% → Apr 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 67% | 21 |
| December 2025 | 52% | 21 |
| January 2026 | 91% | 21 |
| February 2026 | 75% | 20 |
| March 2026 | 86% | 22 |
| April 2026 | 86% | 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.