Are there nonstop flights from Guatemala City (GUA) to Tokyo (NRT)?

No. The fastest connection is via San Francisco, about 15h 27m of total flying time.

What is the fastest connection from Guatemala City (GUA) to Tokyo (NRT)?

via San Francisco ≈ 15h 27m, via Los Angeles ≈ 15h 27m, via Mexico City ≈ 15h 29m (estimated flying time, excluding layovers).

from 40,000 JAL miles, from 57,500 ANA miles (economy, one way, based on the published award charts).

La Aurora International Airport (GUA) to Narita International Airport (NRT)・12,271 km

No nonstop flights. The fastest connection is via San Francisco (SFO), about 15h 27m of flying time (layover not included).

With milesJAL 40,000 miles+ (via LAX)ANA 57,500 miles+ (via LAX)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

9 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.