Are there nonstop flights from Lagos (LOS) to Nairobi (NBO)?

Yes. Kenya Airways fly this route. Flight time is about 5h.

What is the fastest connection from Lagos (LOS) to Nairobi (NBO)?

via Entebbe ≈ 5h 31m, via Douala ≈ 5h 31m, via Kigali ≈ 5h 35m (estimated flying time, excluding layovers).

from 17,500 ANA miles (economy, one way, based on the published award charts).

Murtala Muhammed International Airport (LOS) to Jomo Kenyatta International Airport (NBO)・3,832 km

Nonstop flights available (1 airline). Flight time about 5h. Nonstop return flights also operate.

With milesANA 17,500 miles+ (via ADD)Economy, one way, estimate. Tap a connection for miles by cabin.

14 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.