Are there nonstop flights from Singapore (SIN) to San José (SJO)?

No. The fastest connection is via San Francisco, about 22h 44m of total flying time.

What is the fastest connection from Singapore (SIN) to San José (SJO)?

via San Francisco ≈ 22h 44m, via Los Angeles ≈ 22h 44m, via Newark ≈ 23h 14m (estimated flying time, excluding layovers).

from 55,000 JAL miles, from 67,500 ANA miles (economy, one way, based on the published award charts).

Singapore Changi Airport (SIN) to Juan Santamaría International Airport (SJO)・18,461 km

No nonstop flights. The fastest connection is via San Francisco (SFO), about 22h 44m of flying time (layover not included).

With milesJAL 55,000 miles+ (via LHR)ANA 67,500 miles+ (via SFO)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.