Are there nonstop flights from Santa Ana (SNA) to Singapore (SIN)?

No. The fastest connection is via San Francisco, about 17h 41m of total flying time.

What is the fastest connection from Santa Ana (SNA) to Singapore (SIN)?

via San Francisco ≈ 17h 41m, via Seattle ≈ 18h 7m, via Vancouver ≈ 18h 10m (estimated flying time, excluding layovers).

from 40,000 ANA miles (economy, one way, based on the published award charts).

John Wayne Orange County International Airport (SNA) to Singapore Changi Airport (SIN)・14,159 km

No nonstop flights. The fastest connection is via San Francisco (SFO), about 17h 41m of flying time (layover not included).

With milesANA 40,000 miles+ (via SFO)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

5 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.