Are there nonstop flights from Newark (EWR) to Ottawa (YOW)?

Yes. United Express, Porter Airlines fly this route. Flight time is about 1h 7m.

What is the fastest connection from Newark (EWR) to Ottawa (YOW)?

via Montréal ≈ 1h 49m, via Boston ≈ 1h 58m, via Toronto ≈ 2h 3m (estimated flying time, excluding layovers).

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

Newark Liberty International Airport (EWR) to Ottawa Macdonald-Cartier International Airport (YOW)・529 km

Nonstop flights available (2 airlines). Flight time about 1h 7m. Nonstop return flights also operate.

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

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.