Are there nonstop flights from Appleton (ATW) to New York (LGA)?

No. The fastest connection is via Detroit, about 2h 31m of total flying time.

What is the fastest connection from Appleton (ATW) to New York (LGA)?

via Detroit ≈ 2h 31m, via Chicago ≈ 2h 41m, via Minneapolis ≈ 3h 23m (estimated flying time, excluding layovers).

Appleton International Airport (ATW) to LaGuardia Airport (LGA)・1,259 km

No nonstop flights. The fastest connection is via Detroit (DTW), about 2h 31m of flying time (layover not included).

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.