Are there nonstop flights from New York (LGA) to Cancún (CUN)?

No. The fastest connection is via Charleston, about 3h 58m of total flying time.

What is the fastest connection from New York (LGA) to Cancún (CUN)?

via Charleston ≈ 3h 58m, via Tampa ≈ 3h 58m, via Norfolk ≈ 3h 58m (estimated flying time, excluding layovers).

from 15,000 JAL miles, from 15,000 ANA miles (economy, one way, based on the published award charts).

LaGuardia Airport (LGA) to Cancún International Airport (CUN)・2,514 km

No nonstop flights. The fastest connection is via Charleston (CHS), about 3h 58m of flying time (layover not included).

With milesJAL 15,000 miles+ (via RDU)ANA 15,000 miles+ (via YYZ)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

35 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.