Are there nonstop flights from Monterrey (MTY) to Singapore (SIN)?

No. The fastest connection is via Tokyo, about 19h 52m of total flying time.

What is the fastest connection from Monterrey (MTY) to Singapore (SIN)?

via Tokyo ≈ 19h 52m, via San Francisco ≈ 19h 54m, via Los Angeles ≈ 19h 55m (estimated flying time, excluding layovers).

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

Monterrey International Airport (MTY) to Singapore Changi Airport (SIN)・16,039 km

No nonstop flights. The fastest connection is via Tokyo (NRT), about 19h 52m 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.

7 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.