Are there nonstop flights from New York (LGA) to Vienna (VIE)?

No. The fastest connection is via Boston, about 9h of total flying time.

What is the fastest connection from New York (LGA) to Vienna (VIE)?

via Boston ≈ 9h, via Montréal ≈ 9h 13m, via Toronto ≈ 9h 50m (estimated flying time, excluding layovers).

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

LaGuardia Airport (LGA) to Vienna International Airport (VIE)・6,801 km

No nonstop flights. The fastest connection is via Boston (BOS), about 9h 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.

5 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.