Are there nonstop flights from Houston (HOU) to Tokyo (NRT)?

No. The fastest connection is via Seattle, about 13h 35m of total flying time.

What is the fastest connection from Houston (HOU) to Tokyo (NRT)?

via Seattle ≈ 13h 35m, via Denver ≈ 13h 36m, via Dallas-Fort Worth ≈ 13h 37m (estimated flying time, excluding layovers).

William P. Hobby Airport (HOU) to Narita International Airport (NRT)・10,701 km

No nonstop flights. The fastest connection is via Seattle (SEA), about 13h 35m of flying time (layover not included).

None.

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.