United Airlines SFO to PHX on-time performance
United Airlines nonstop flights from San Francisco to Phoenix · Aug 2025 – Jul 2026
On-time arrivals
81%
arrived < 15 min late
Cancelled
0.4%
6 flights
Avg arrival delay
12 min
58 min when late
Rank on route
#2 of 5
route average 74% on time
Key facts
- United Airlines flights on SFO to PHX arrived on time 81% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 5 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was late-arriving aircraft (49%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft49%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion23%
- Extreme weather1%
- Security0%
Other airlines on SFO to PHX
- American Airlines75% on time · 26 min avg delay
- Southwest Airlines60% on time · 24 min avg delay
- SkyWest Airlines87% on time · 11 min avg delay
- Frontier Airlines62% on time · 39 min avg delay
Full SFO to PHX comparison →
United Airlines on-time record across all routes →
1,473 United Airlines flights tracked on this route; 6 cancelled, 10 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.