Southwest Airlines LAX to SFO on-time performance
Southwest Airlines nonstop flights from Los Angeles to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
54%
arrived < 15 min late
Cancelled
0.4%
5 flights
Avg arrival delay
29 min
61 min when late
Rank on route
#5 of 7
route average 62% on time
Key facts
- Southwest Airlines flights on LAX to SFO arrived on time 54% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 18% arrived an hour or more late.
- That ranks #5 of 7 airlines on this route, which averaged 62% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (48%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion48%
- Late-arriving aircraft37%
- Airline (crew, maintenance, cleaning, fueling)14%
- Extreme weather1%
- Security0%
Other airlines on LAX to SFO
- United Airlines64% on time · 21 min avg delay
- SkyWest Airlines69% on time · 20 min avg delay
- Delta Air Lines63% on time · 21 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 →
Southwest Airlines on-time record across all routes →
1,426 Southwest Airlines flights tracked on this route; 5 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.