Are there nonstop flights from Boston (BOS) to Ottawa (YOW)?

Yes. Porter Airlines fly this route. Flight time is about 1h 5m.

What is the fastest connection from Boston (BOS) to Ottawa (YOW)?

via Montréal ≈ 1h 40m, via Newark ≈ 2h, via Toronto ≈ 2h 14m (estimated flying time, excluding layovers).

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

Boston Logan International Airport (BOS) to Ottawa Macdonald-Cartier International Airport (YOW)・498 km

Nonstop flights available (1 airline). Flight time about 1h 5m. Nonstop return flights also operate.

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

6 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.