Are there nonstop flights from Espargos (SID) to Chicago (ORD)?

No. The fastest connection is via Providence/Warwick, about 8h 55m of total flying time.

What is the fastest connection from Espargos (SID) to Chicago (ORD)?

via Providence/Warwick ≈ 8h 55m, via Lisbon ≈ 11h 51m, via Barcelona ≈ 13h 37m (estimated flying time, excluding layovers).

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

Amílcar Cabral International Airport (SID) to Chicago O'Hare International Airport (ORD)・6,716 km

No nonstop flights. The fastest connection is via Providence/Warwick (PVD), about 8h 55m of flying time (layover not included).

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

None.

11 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.