Direct (nonstop) flights from Chicago to Nantucket
2 airlines fly nonstop from Chicago O Hare International (ORD) to Nantucket Mem (ACK). It's 923 miles (1,486 km), about 2h 48m in the air. Operated by American Airlines, United Airlines.
American Airlines
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
AA
American Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Chicago to Nantucket with one stop · direct emits 171 kg CO₂ per passenger
Looking for the return flight?
ACK → ORD: Flights from Nantucket to ChicagoOther direct flights from Chicago
Direct flights from Nantucket (ACK)
Frequently Asked Questions
How long is the direct flight from Chicago to Nantucket?
A nonstop flight from Chicago (ORD) to Nantucket (ACK) takes approximately 2 hours and 48 minutes. The distance is 923 miles (1,486 km).
Which airlines fly nonstop from Chicago to Nantucket?
2 airlines: American Airlines, United Airlines.
Is there a nonstop flight from Chicago to Nantucket?
Yes. 2 airlines: American Airlines, United Airlines.
How far is Chicago from Nantucket?
The flight distance from Chicago to Nantucket is 923 miles (1,486 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from Chicago to Nantucket?
At 2h 48m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Chicago to Nantucket?
Roughly 171 kg CO2 per passenger one-way. That's about the same as driving 855 km.
Is the return flight from Nantucket to Chicago also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chicago to Nantucket?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Chicago O Hare International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.