Are there nonstop flights from Chicago (ORD) to Nairobi (NBO)?

No. The fastest connection is via New York, about 16h 20m of total flying time.

What is the fastest connection from Chicago (ORD) to Nairobi (NBO)?

via New York ≈ 16h 20m, via Paris ≈ 16h 28m, via London ≈ 16h 31m (estimated flying time, excluding layovers).

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

Chicago O'Hare International Airport (ORD) to Jomo Kenyatta International Airport (NBO)・12,909 km

No nonstop flights. The fastest connection is via New York (JFK), about 16h 20m of flying time (layover not included).

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

None.

13 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.