United Airlines LAX to SFO on-time performance
United Airlines nonstop flights from Los Angeles to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
64%
arrived < 15 min late
Cancelled
0.2%
8 flights
Avg arrival delay
21 min
57 min when late
Rank on route
#2 of 7
route average 62% on time
Key facts
- United Airlines flights on LAX to SFO arrived on time 64% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 10% arrived an hour or more late.
- That ranks #2 of 7 airlines on this route, which averaged 62% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (67%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion67%
- Late-arriving aircraft22%
- Airline (crew, maintenance, cleaning, fueling)11%
- Extreme weather0%
- Security0%
Other airlines on LAX to SFO
- SkyWest Airlines69% on time · 20 min avg delay
- Delta Air Lines63% on time · 21 min avg delay
- Southwest Airlines54% on time · 29 min avg delay
- Alaska Airlines51% on time · 28 min avg delay
- Frontier Airlines49% on time · 34 min avg delay
- American Airlines62% on time · 29 min avg delay
Full LAX to SFO comparison →
United Airlines on-time record across all routes →
3,291 United Airlines flights tracked on this route; 8 cancelled, 0 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.