Are there nonstop flights from Southend-on-Sea (SEN) to San José (SJO)?

No. The fastest connection is via Paris, about 11h 53m of total flying time.

What is the fastest connection from Southend-on-Sea (SEN) to San José (SJO)?

via Paris ≈ 11h 53m, via Amsterdam ≈ 12h 1m (estimated flying time, excluding layovers).

London Southend Airport (SEN) to Juan Santamaría International Airport (SJO)・8,787 km

No nonstop flights. The fastest connection is via Paris (CDG), about 11h 53m of flying time (layover not included).

None.

2 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.