Nantucket to Chicago (ACK-ORD): nonstop upgrade & award space

American Airlines and United Airlines fly nonstop from Nantucket (ACK) to Chicago (ORD) just twice a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on American Airlines, on every ACK to ORD departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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2
Nonstop flights a week
921 mi
Nonstop distance
Free
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Nantucket to Chicago flight schedule

Scheduled nonstop departures for ACK to ORD, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Nantucket (ACK) to Chicago (ORD)
Date Flight Airline Departs ACK Arrives ORD Duration Aircraft
UA 5318United Airlines16:4519:003h 15mE7W
UA 5318United Airlines16:4519:003h 15mE7W
AA 4318American Airlines09:4511:432h 58mE75
AA 4318American Airlines09:4511:432h 58mE75
AA 4318American Airlines09:4511:432h 58mE75
AA 4318American Airlines09:4511:432h 58mE75
AA 4318American Airlines09:4511:432h 58mE75

Showing all 7 scheduled ACK to ORD departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every ACK to ORD date on the interactive map

Confirmed upgrade & award space on ACK to ORD departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Nantucket to Chicago to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each ACK to ORD departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See ACK to ORD on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Nantucket to Chicago nonstop

Carriers operating ACK to ORD nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See ACK to ORD on the interactive map →

Frequently asked questions about ACK to ORD

How far is Chicago from Nantucket?
ACK to ORD covers about 921 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from ACK to ORD?
American Airlines and United Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How often does ACK to ORD operate?
The nonstop currently runs twice a week. Thin schedules like this change by season, and an alert will catch anything added.
What time do flights from ACK to ORD depart?
Scheduled ACK to ORD nonstops in the next 7 days with service leave between 09:45 and 16:45, local time at Nantucket. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on ACK to ORD?
Open the ACK to ORD route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss ACK to ORD upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free