Are there nonstop flights from Istanbul (IST) to New York (LGA)?

No. The fastest connection is via Boston, about 10h 26m of total flying time.

What is the fastest connection from Istanbul (IST) to New York (LGA)?

via Boston ≈ 10h 26m, via Montréal ≈ 10h 40m, via Toronto ≈ 11h 17m (estimated flying time, excluding layovers).

from 27,500 ANA miles (economy, one way, based on the published award charts).

İstanbul Airport (IST) to LaGuardia Airport (LGA)・8,022 km

No nonstop flights. The fastest connection is via Boston (BOS), about 10h 26m of flying time (layover not included).

With milesANA 27,500 miles+ (via YUL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.