Are there nonstop flights from Chicago (ORD) to Singapore (SIN)?

No. The fastest connection is via Hong Kong, about 18h 45m of total flying time.

What is the fastest connection from Chicago (ORD) to Singapore (SIN)?

via Hong Kong ≈ 18h 45m, via Seoul ≈ 18h 50m, via Taipei ≈ 18h 53m (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Chicago O'Hare International Airport (ORD) to Singapore Changi Airport (SIN)・15,051 km

No nonstop flights. The fastest connection is via Hong Kong (HKG), about 18h 45m of flying time (layover not included).

With milesANA 27,500 miles+ (via HND)JAL 47,000 miles+ (via HKG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

32 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.