Are there nonstop flights from George Town (GCM) to Portland (PWM)?

No. The fastest connection is via New York, about 4h 26m of total flying time.

What is the fastest connection from George Town (GCM) to Portland (PWM)?

via New York ≈ 4h 26m, via Newark ≈ 4h 27m, via Philadelphia ≈ 4h 28m (estimated flying time, excluding layovers).

from 15,000 JAL miles, from 30,000 ANA miles (economy, one way, based on the published award charts).

Owen Roberts International Airport (GCM) to Portland International Jetport (PWM)・2,897 km

No nonstop flights. The fastest connection is via New York (JFK), about 4h 26m of flying time (layover not included).

With milesJAL 15,000 miles+ (via PHL)ANA 30,000 miles+ (via EWR)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

15 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.