--- title: "Nantucket (ACK) to Chicago (ORD) flights: who flies it" description: "American Airlines flies nonstop from ACK to ORD, about 1 flight a week, scheduled at 2h 58m. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/ack-ord" url: "https://2lnr.com/routes/ack-ord.md" date_modified: "2026-10-18T05:10:47Z" --- # Nantucket to Chicago (ACK-ORD): nonstop upgrade & award space American Airlines flies nonstop from Nantucket (ACK) to Chicago (ORD) just once a week. In the timetable below it flies as AA 4318, scheduled at 2h 58m for the 921 miles. 2LNR checks confirmed upgrade and award space on American Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See ACK to ORD on the interactive map [Get started free](https://2lnr.com/login) 1 Flights a week, 4-week average 2h 58m Scheduled flight time 921 mi Nonstop distance Free To get started ## Nantucket to Chicago flight schedule Scheduled nonstop departures for ACK to ORD starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Nantucket (ACK) to Chicago (ORD) | Date | Flight | Airline | Departs ACK | Arrives ORD | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Sat, Jun 19 | AA 4318 | American Airlines | 09:45 | 11:43 | 2h 58m | [Embraer E175](https://2lnr.com/seatmaps/aa/e175.md) | | Sat, Jun 26 | AA 4318 | American Airlines | 09:45 | 11:43 | 2h 58m | Embraer E175 | | Sat, Jul 3 | AA 4318 | American Airlines | 09:45 | 11:43 | 2h 58m | Embraer E175 | | Sat, Jul 10 | AA 4318 | American Airlines | 09:45 | 11:43 | 2h 58m | Embraer E175 | | Sat, Jul 17 | AA 4318 | American Airlines | 09:45 | 11:43 | 2h 58m | Embraer E175 | | Sat, Jul 24 | AA 4318 | American Airlines | 09:45 | 11:43 | 2h 58m | Embraer E175 | Showing all 6 scheduled ACK to ORD departures across 6 days with service, starting October 23, 2026. 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 hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every ACK to ORD date on the interactive map ## Aircraft on the Nantucket to Chicago nonstop American Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/aa/e175.md) on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## 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 or award seats by date on the ACK to ORD departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're 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. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [American Airlines (AA) route map](https://2lnr.com/routes/airlines/aa.md)\ [The aircraft AA flies](https://2lnr.com/seatmaps/aa.md) See ACK to ORD on the interactive map → ## Frequently asked questions about ACK to ORD **How long is the flight from Nantucket (ACK) to Chicago (ORD)?** AA 4318 is scheduled at 2h 58m from Nantucket (ACK) to Chicago (ORD) on every departure in the schedule table on this page. The nonstop covers about 921 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from ACK to ORD?** American Airlines is currently the only airline flying ACK to ORD nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines. **How often does ACK to ORD operate?** The ACK to ORD nonstop currently runs once a week, on American Airlines. Thin schedules like this change by season, and on Pro an alert will catch anything added. **What time do flights from ACK to ORD depart?** In the next 6 days with service, every scheduled ACK to ORD nonstop leaves at 09:45 local time at Nantucket. The schedule table on this page lists each departure by date. **Which flights operate ACK to ORD nonstop?** American Airlines flies AA 4318 nonstop from Nantucket (ACK) to Chicago (ORD), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times 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. Flying the other way? See [ORD to ACK upgrade and award space](https://2lnr.com/routes/ord-ack.md). Award seats rather than schedules? See [American Airlines award availability](https://2lnr.com/awards/aa.md). Looking beyond this route? See [every route from Nantucket (ACK)](https://2lnr.com/routes/ack.md), or [every route from Chicago (ORD)](https://2lnr.com/routes/ord.md). Nonstops to Chicago (ORD) from other airports within 150 miles of Nantucket (ACK): - [Martha's Vineyard (MVY) to Chicago (ORD)](https://2lnr.com/routes/mvy-ord.md), 30 miles from ACK - [Hyannis (HYA) to Chicago (ORD)](https://2lnr.com/routes/hya-ord.md), 31 miles from ACK - [Providence (PVD) to Chicago (ORD)](https://2lnr.com/routes/pvd-ord.md), 78 miles from ACK - [Boston (BOS) to Chicago (ORD)](https://2lnr.com/routes/bos-ord.md), 91 miles from ACK - [Manchester (MHT) to Chicago (ORD)](https://2lnr.com/routes/mht-ord.md), 135 miles from ACK Distances are great-circle between the airports, not driving distance. - [How American upgrades clear](https://2lnr.com/about/aa/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss ACK to ORD upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)