Southwest Airlines
WN4239San Francisco to San Diego
Southwest Airlines flight WN4239 flies from San Francisco (SFO) to San Diego (SAN), 719 km. Over August 2025 to July 2026 it usually arrives about 12 minutes late: 64% of 117 flights arrived within 15 minutes of schedule and 1.7% were cancelled (US Department of Transportation data).
On-time record, last 12 months
64%
on time (within 15 min)
17%
more than 30 min late
1.7%
cancelled
+12 min
average arrival vs schedule
Every operation of WN4239, August 2025 to July 2026: 117 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN4239
- San Francisco (SFO) to San Diego (SAN)42 flights
- Phoenix Sky Harbor (PHX) to Omaha (OMA)33 flights
- San Diego (SAN) to Phoenix Sky Harbor (PHX)15 flights
- Phoenix Sky Harbor (PHX) to Orlando (MCO)10 flights
- San Diego (SAN) to Portland (PDX)5 flights
- Oakland (OAK) to Phoenix Sky Harbor (PHX)5 flights
- Las Vegas (LAS) to Santa Ana (SNA)3 flights
- Oakland (OAK) to Los Angeles (LAX)1 flights
- Chicago Midway (MDW) to Dallas Love Field (DAL)1 flights
- Kansas City (MCI) to Portland (PDX)1 flights
Other flights from San Francisco to San Diego
More about San Francisco (SFO) and San Diego (SAN).
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