Southwest Airlines PHX to SFO on-time performance
Southwest Airlines nonstop flights from Phoenix to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
60%
arrived < 15 min late
Cancelled
0.4%
4 flights
Avg arrival delay
24 min
57 min when late
Rank on route
#6 of 6
route average 66% on time
Key facts
- Southwest Airlines flights on PHX to SFO arrived on time 60% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 12% arrived an hour or more late.
- That ranks #6 of 6 airlines on this route, which averaged 66% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (37%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion37%
- Late-arriving aircraft31%
- Airline (crew, maintenance, cleaning, fueling)29%
- Extreme weather2%
- Security0%
Other airlines on PHX to SFO
- United Airlines70% on time · 19 min avg delay
- American Airlines64% on time · 29 min avg delay
- SkyWest Airlines67% on time · 23 min avg delay
- Frontier Airlines69% on time · 22 min avg delay
- Envoy Air100% on time · 0 min avg delay
Full PHX to SFO comparison →
Southwest Airlines on-time record across all routes →
1,080 Southwest Airlines flights tracked on this route; 4 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.