Flight Time from Singapore to San Diego: No Direct Route

There are no nonstop flights between Singapore (SIN) and San Diego (SAN). The fastest itineraries involve a single layover, typically at:

• Los Angeles (LAX) – most common, ~16h 30m total
• San Francisco (SFO) – similar duration
• Tokyo (NRT/HND) or Seoul (ICN) – sometimes faster depending on connections

Typical routing: SIN → LAX/SFO (14–15h) + layover (2–4h) → SAN (1–1.5h). Total travel time: 16–20 hours.

Airlines offering one-stop service include United, Delta, American, Singapore Airlines (via SFO), and Korean Air/Asiana (via ICN). Book early for optimal connections and consider breaking the journey with an overnight stop to reduce fatigue.