--- title: "Boston (BOS) to Nantucket (ACK) flights: who flies it" description: "American Airlines, JetBlue Airways and Cape Air fly nonstop from BOS to ACK, about 69 flights a week. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/bos-ack" url: "https://2lnr.com/routes/bos-ack.md" date_modified: "2026-10-18T05:10:47Z" --- # Boston to Nantucket (BOS-ACK): nonstop upgrade & award space Cape Air, JetBlue Airways, and American Airlines fly nonstop between Boston (BOS) and Nantucket (ACK), roughly 69 times a week. The timetable below shows the nonstop scheduled at 45 minutes to 55 minutes for the 91 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 22, 2026. See BOS to ACK on the interactive map [Get started free](https://2lnr.com/login) 69 Flights a week, 4-week average 45 minutes to 55 minutes Scheduled flight time 91 mi Nonstop distance Free To get started ## Boston to Nantucket flight schedule Scheduled nonstop departures for BOS to ACK starting October 21, 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 Boston (BOS) to Nantucket (ACK) | Date | Flight | Airline | Departs BOS | Arrives ACK | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Wed, Oct 21 | 9K 5011 | Cape Air | 08:20 | 09:15 | 55 minutes | CNA | | Wed, Oct 21 | 9K 5091 | Cape Air | 10:55 | 11:50 | 55 minutes | CNA | | Wed, Oct 21 | 9K 5311 | Cape Air | 13:00 | 13:55 | 55 minutes | CNA | | Wed, Oct 21 | 9K 5051 | Cape Air | 13:15 | 14:00 | 45 minutes | CNA | | Wed, Oct 21 | 9K 5331 | Cape Air | 15:49 | 16:34 | 45 minutes | CNA | | Wed, Oct 21 | 9K 5071 | Cape Air | 16:05 | 17:00 | 55 minutes | CNA | | Wed, Oct 21 | 9K 5211 | Cape Air | 17:25 | 18:10 | 45 minutes | CNA | | Wed, Oct 21 | 9K 5351 | Cape Air | 17:43 | 18:38 | 55 minutes | CNA | | Wed, Oct 21 | 9K 5431 | Cape Air | 18:50 | 19:45 | 55 minutes | CNA | | Wed, Oct 21 | 9K 5451 | Cape Air | 19:55 | 20:40 | 45 minutes | CNA | | Thu, Oct 22 | 9K 5011 | Cape Air | 08:20 | 09:15 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5091 | Cape Air | 10:40 | 11:35 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5171 | Cape Air | 11:45 | 12:40 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5311 | Cape Air | 13:00 | 13:55 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5051 | Cape Air | 13:15 | 14:00 | 45 minutes | CNA | | Thu, Oct 22 | 9K 5031 | Cape Air | 14:50 | 15:45 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5331 | Cape Air | 15:49 | 16:34 | 45 minutes | CNA | | Thu, Oct 22 | 9K 5071 | Cape Air | 16:05 | 17:00 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5211 | Cape Air | 17:25 | 18:10 | 45 minutes | CNA | | Thu, Oct 22 | 9K 5351 | Cape Air | 17:43 | 18:38 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5431 | Cape Air | 18:50 | 19:45 | 55 minutes | CNA | | Thu, Oct 22 | 9K 5451 | Cape Air | 19:55 | 20:40 | 45 minutes | CNA | | Fri, Oct 23 | 9K 5011 | Cape Air | 08:20 | 09:15 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5091 | Cape Air | 10:40 | 11:35 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5171 | Cape Air | 11:45 | 12:40 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5311 | Cape Air | 13:00 | 13:55 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5051 | Cape Air | 13:15 | 14:00 | 45 minutes | CNA | | Fri, Oct 23 | 9K 5331 | Cape Air | 15:49 | 16:34 | 45 minutes | CNA | | Fri, Oct 23 | 9K 5071 | Cape Air | 16:05 | 17:00 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5211 | Cape Air | 17:25 | 18:10 | 45 minutes | CNA | | Fri, Oct 23 | 9K 5351 | Cape Air | 17:43 | 18:38 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5431 | Cape Air | 18:50 | 19:45 | 55 minutes | CNA | | Fri, Oct 23 | 9K 5451 | Cape Air | 19:55 | 20:40 | 45 minutes | CNA | | Sat, Oct 24 | 9K 5011 | Cape Air | 08:20 | 09:15 | 55 minutes | CNA | | Sat, Oct 24 | 9K 5071 | Cape Air | 16:44 | 17:39 | 55 minutes | CNA | | Sat, Oct 24 | 9K 5351 | Cape Air | 17:43 | 18:38 | 55 minutes | CNA | | Sat, Oct 24 | 9K 5431 | Cape Air | 18:50 | 19:45 | 55 minutes | CNA | | Sun, Oct 25 | 9K 5011 | Cape Air | 08:20 | 09:15 | 55 minutes | CNA | | Sun, Oct 25 | 9K 5091 | Cape Air | 09:08 | 10:03 | 55 minutes | CNA | | Sun, Oct 25 | 9K 5111 | Cape Air | 11:15 | 12:10 | 55 minutes | CNA | Showing the first 40 of 70 scheduled BOS to ACK departures across 7 days with service, starting October 21, 2026. Every remaining date is 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 BOS to ACK date on the interactive map ## Aircraft on the Boston to Nantucket nonstop Cape Air flies the Cessna on every departure in the schedule table on this page. ## Confirmed upgrade & award space on BOS to ACK departures 2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Boston to Nantucket to see which departures have space, the next 14 days free on every product and the full horizon on Pro. JetBlue Airways award space was not open on the one Boston to Nantucket departure date from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026. ### See real availability Confirmed upgrade or award seats by date on the BOS to ACK 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 BOS to ACK on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Boston to Nantucket nonstop Carriers operating BOS to ACK nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Cape Air (9K) route map](https://2lnr.com/routes/airlines/9k.md)\ [The aircraft 9K flies](https://2lnr.com/seatmaps/9k.md) - [JetBlue Airways (B6) route map](https://2lnr.com/routes/airlines/b6.md)\ [The aircraft B6 flies](https://2lnr.com/seatmaps/b6.md) - [American Airlines (AA) route map](https://2lnr.com/routes/airlines/aa.md)\ [The aircraft AA flies](https://2lnr.com/seatmaps/aa.md) See BOS to ACK on the interactive map → ## Frequently asked questions about BOS to ACK **How long is the flight from Boston (BOS) to Nantucket (ACK)?** Scheduled flight times from Boston (BOS) to Nantucket (ACK) run from 45 minutes to 55 minutes across the departures in the schedule table on this page. The nonstop covers about 91 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from BOS to ACK?** Cape Air, JetBlue Airways, and American Airlines fly BOS to ACK nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines, and award seats on JetBlue Airways. **How many flights a week are there from BOS to ACK?** About 69 nonstop flights a week run between Boston (BOS) and Nantucket (ACK) in the current schedule, operated by Cape Air, JetBlue Airways, and American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from BOS to ACK depart?** Scheduled BOS to ACK nonstops in the next 7 days with service leave between 08:20 and 19:55, local time at Boston. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate BOS to ACK nonstop?** The schedule table on this page lists 13 flight numbers for BOS to ACK nonstops, including 9K 5011, 9K 5051, 9K 5071, 9K 5091, 9K 5311, 9K 5331, 9K 5351, and 9K 5431 on Cape Air. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on BOS to ACK?** Open the BOS to ACK 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 [ACK to BOS upgrade and award space](https://2lnr.com/routes/ack-bos.md). Award seats rather than schedules? See [JetBlue Airways award availability](https://2lnr.com/awards/b6.md) or [American Airlines award availability](https://2lnr.com/awards/aa.md). Looking beyond this route? See [every route from Boston (BOS)](https://2lnr.com/routes/bos.md), or [every route from Nantucket (ACK)](https://2lnr.com/routes/ack.md). Nonstops to Nantucket (ACK) from other airports within 150 miles of Boston (BOS): - [Bedford (BED) to Nantucket (ACK)](https://2lnr.com/routes/bed-ack.md), 16 miles from BOS - [New Bedford (EWB) to Nantucket (ACK)](https://2lnr.com/routes/ewb-ack.md), 48 miles from BOS - [Hyannis (HYA) to Nantucket (ACK)](https://2lnr.com/routes/hya-ack.md), 61 miles from BOS - [Martha's Vineyard (MVY) to Nantucket (ACK)](https://2lnr.com/routes/mvy-ack.md), 70 miles from BOS Nonstops from Boston (BOS) to other airports within 150 miles of Nantucket (ACK): - [Boston (BOS) to Martha's Vineyard (MVY)](https://2lnr.com/routes/bos-mvy.md), 30 miles from ACK - [Boston (BOS) to Hyannis (HYA)](https://2lnr.com/routes/bos-hya.md), 31 miles from ACK - [Boston (BOS) to Provincetown (PVC)](https://2lnr.com/routes/bos-pvc.md), 57 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 BOS to ACK 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. 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