--- title: "Boston (BOS) to San Juan (SJU) flights: who flies it" description: "Delta Air Lines, JetBlue Airways and Frontier Airlines fly nonstop from BOS to SJU, about 21 flights a week. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/bos-sju" url: "https://2lnr.com/routes/bos-sju.md" date_modified: "2026-10-18T05:10:47Z" --- # Boston to San Juan (BOS-SJU): nonstop upgrade & award space JetBlue Airways, Delta Air Lines, and Frontier Airlines fly nonstop between Boston (BOS) and San Juan (SJU), roughly 21 times a week. The timetable below shows the nonstop scheduled at 4h 2m to 4h 7m for the 1,679 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines 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 BOS to SJU on the interactive map [Get started free](https://2lnr.com/login) 21 Flights a week, 4-week average 4h 2m to 4h 7m Scheduled flight time 1,679 mi Nonstop distance Free To get started ## Boston to San Juan flight schedule Scheduled nonstop departures for BOS to SJU starting October 22, 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 San Juan (SJU) | Date | Flight | Airline | Departs BOS | Arrives SJU | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md) | | Thu, Oct 22 | B6 861 | JetBlue Airways | 11:10 | 15:14 | 4h 4m | [Airbus A321](https://2lnr.com/seatmaps/b6/a321.md) | | Thu, Oct 22 | B6 561 | JetBlue Airways | 19:42 | 23:49 | 4h 7m | [Airbus A320](https://2lnr.com/seatmaps/b6/a320.md) | | Fri, Oct 23 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | Airbus A321neo family | | Fri, Oct 23 | B6 861 | JetBlue Airways | 11:30 | 15:34 | 4h 4m | Airbus A321 | | Fri, Oct 23 | B6 561 | JetBlue Airways | 19:42 | 23:49 | 4h 7m | Airbus A320 | | Sat, Oct 24 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | Airbus A321neo family | | Sat, Oct 24 | B6 861 | JetBlue Airways | 11:10 | 15:14 | 4h 4m | Airbus A321 | | Sat, Oct 24 | B6 561 | JetBlue Airways | 19:42 | 23:49 | 4h 7m | Airbus A320 | | Sun, Oct 25 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | Airbus A321neo family | | Sun, Oct 25 | B6 861 | JetBlue Airways | 10:15 | 14:19 | 4h 4m | Airbus A321 | | Sun, Oct 25 | B6 561 | JetBlue Airways | 20:08 | 00:13 | 4h 5m | Airbus A320 | | Mon, Oct 26 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | Airbus A321neo family | | Mon, Oct 26 | B6 861 | JetBlue Airways | 10:15 | 14:19 | 4h 4m | Airbus A321 | | Mon, Oct 26 | B6 561 | JetBlue Airways | 20:08 | 00:13 | 4h 5m | Airbus A320 | | Tue, Oct 27 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | Airbus A321neo family | | Tue, Oct 27 | B6 861 | JetBlue Airways | 11:00 | 15:05 | 4h 5m | Airbus A321 | | Tue, Oct 27 | B6 561 | JetBlue Airways | 20:08 | 00:13 | 4h 5m | Airbus A320 | | Wed, Oct 28 | DL 1780 | Delta Air Lines | 08:50 | 12:52 | 4h 2m | Airbus A321neo family | | Wed, Oct 28 | B6 861 | JetBlue Airways | 11:00 | 15:05 | 4h 5m | Airbus A321 | | Wed, Oct 28 | B6 561 | JetBlue Airways | 20:08 | 00:13 | 4h 5m | Airbus A320 | Showing all 21 scheduled BOS to SJU departures across 7 days with service, starting October 22, 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 BOS to SJU date on the interactive map ## Aircraft on the Boston to San Juan nonstop In the schedule table on this page, JetBlue Airways flies the [Airbus A321](https://2lnr.com/seatmaps/b6/a321.md) and the [Airbus A320](https://2lnr.com/seatmaps/b6/a320.md), and Delta Air Lines flies the [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on BOS to SJU departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Boston to San Juan to see which departures have space, the next 14 days free on every product and the full horizon on Pro. In the 7 days to October 19, 2026, 2LNR checked award space on Boston to San Juan departures from October 19 to November 1. JetBlue Airways had space open on 12 of 14 dates checked and Delta Air Lines on 11 of 14. ### See real availability Confirmed upgrade or award seats by date on the BOS to SJU 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 SJU on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Boston to San Juan nonstop Carriers operating BOS to SJU nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [JetBlue Airways (B6) route map](https://2lnr.com/routes/airlines/b6.md)\ [The aircraft B6 flies](https://2lnr.com/seatmaps/b6.md) - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) - [Frontier Airlines (F9) route map](https://2lnr.com/routes/airlines/f9.md)\ [The aircraft F9 flies](https://2lnr.com/seatmaps/f9.md) See BOS to SJU on the interactive map → ## Frequently asked questions about BOS to SJU **How long is the flight from Boston (BOS) to San Juan (SJU)?** Scheduled flight times from Boston (BOS) to San Juan (SJU) run from 4h 2m to 4h 7m across the departures in the schedule table on this page. The nonstop covers about 1,679 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from BOS to SJU?** JetBlue Airways, Delta Air Lines, and Frontier Airlines fly BOS to SJU nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines, and award seats on JetBlue Airways. **How many flights a week are there from BOS to SJU?** About 21 nonstop flights a week run between Boston (BOS) and San Juan (SJU) in the current schedule, operated by JetBlue Airways, Delta Air Lines, and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from BOS to SJU depart?** Scheduled BOS to SJU nonstops in the next 7 days with service leave between 08:50 and 20:08, 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 SJU nonstop?** In the schedule table on this page, BOS to SJU nonstops fly as B6 561 and B6 861 on JetBlue Airways, and DL 1780 on Delta Air Lines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on BOS to SJU?** Open the BOS to SJU route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, 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 [SJU to BOS upgrade and award space](https://2lnr.com/routes/sju-bos.md). Award seats rather than schedules? See [JetBlue Airways award availability](https://2lnr.com/awards/b6.md) or [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from Boston (BOS)](https://2lnr.com/routes/bos.md), or [every route from San Juan (SJU)](https://2lnr.com/routes/sju.md). Nonstops to San Juan (SJU) from other airports within 150 miles of Boston (BOS): - [Providence (PVD) to San Juan (SJU)](https://2lnr.com/routes/pvd-sju.md), 49 miles from BOS - [Hartford (BDL) to San Juan (SJU)](https://2lnr.com/routes/bdl-sju.md), 90 miles from BOS Nonstops from Boston (BOS) to other airports within 150 miles of San Juan (SJU): - [Boston (BOS) to Charlotte Amalie (STT)](https://2lnr.com/routes/bos-stt.md), 68 miles from SJU Distances are great-circle between the airports, not driving distance. - [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss BOS to SJU 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)