Chicago→NantucketNonstop Flight TimeORD–ACK

Chicago (O'Hare International Airport) to Nantucket (Nantucket Memorial Airport).

Direct flights from ORD to ACK have an estimated flight time of about 2h 29m, based on the 922-mile great-circle distance. Our current captured departure sample includes 2×/wk across 1 captured airline, with United Airlines appearing most often in that sample. Captured departure times run from 10:25 to 11:45 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for ORD to ACK, last seen June 15, 2026. Frequency uses 2 scheduled departures across 2 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.