Are there nonstop flights from Nairobi (NBO) to Seattle (SEA)?

No. The fastest connection is via Amsterdam, about 18h 4m of total flying time.

What is the fastest connection from Nairobi (NBO) to Seattle (SEA)?

via Amsterdam ≈ 18h 4m, via Frankfurt am Main ≈ 18h 5m, via Paris ≈ 18h 6m (estimated flying time, excluding layovers).

from 35,000 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Jomo Kenyatta International Airport (NBO) to Seattle–Tacoma International Airport (SEA)・14,508 km

No nonstop flights. The fastest connection is via Amsterdam (AMS), about 18h 4m of flying time (layover not included).

With milesANA 35,000 miles+ (via FRA)JAL 47,000 miles+ (via LHR)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 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.