Are there nonstop flights from Miami (MIA) to Portland (PWM)?

No. The fastest connection is via Norfolk, about 3h 35m of total flying time.

What is the fastest connection from Miami (MIA) to Portland (PWM)?

via Norfolk ≈ 3h 35m, via New York ≈ 3h 35m, via New York ≈ 3h 36m (estimated flying time, excluding layovers).

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

Miami International Airport (MIA) to Portland International Jetport (PWM)・2,180 km

No nonstop flights. The fastest connection is via Norfolk (ORF), about 3h 35m of flying time (layover not included).

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

None.

25 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.