Route
PSC → SFO
Tri Cities Airport San Francisco International Airport
620 miles
Return route SFO → PSC →
Alerts at PSC and SFO
How punctual is this route?
- On-time arrivals
- 69.2%
- Less than 15 minutes late
- Cancelled
- 0.2%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 577
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 47%
- Airline (crew, maintenance, cleaning) 25%
- Late-arriving aircraft 22%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.9% | 49 |
| October 2025 | 80.6% | 62 |
| November 2025 | 88.1% | 59 |
| December 2025 | 86.9% | 62 |
| January 2026 | 79.2% | 49 |
| February 2026 | 82.2% | 46 |
| March 2026 | 94.3% | 35 |
| April 2026 | 63.3% | 30 |
| May 2026 | 43.9% | 41 |
| June 2026 | 24.1% | 58 |
| July 2026 | 30.6% | 49 |
| August 2026 | 59.5% | 37 |
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 | 577 | 69.2% | 0.2% | 81 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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