Are there nonstop flights from Seoul (ICN) to San José (SJO)?

No. The fastest connection is via Dallas-Fort Worth, about 17h 18m of total flying time.

What is the fastest connection from Seoul (ICN) to San José (SJO)?

via Dallas-Fort Worth ≈ 17h 18m, via Monterrey ≈ 17h 20m, via San Francisco ≈ 17h 26m (estimated flying time, excluding layovers).

from 47,000 JAL miles, from 61,000 ANA miles (economy, one way, based on the published award charts).

Incheon International Airport (ICN) to Juan Santamaría International Airport (SJO)・13,847 km

No nonstop flights. The fastest connection is via Dallas-Fort Worth (DFW), about 17h 18m of flying time (layover not included).

With milesJAL 47,000 miles+ (via DFW)ANA 61,000 miles+ (via SFO)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

18 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.