--- title: "San Antonio (SAT) to Boston (BOS) flights: who flies it" description: "Delta Air Lines flies nonstop from SAT to BOS, about 7 flights a week, scheduled at 4h 24m. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/sat-bos" url: "https://2lnr.com/routes/sat-bos.md" date_modified: "2026-10-18T05:10:47Z" --- # San Antonio to Boston (SAT-BOS): nonstop upgrade & award space Delta Air Lines flies the SAT to BOS nonstop about 7 times a week. In the timetable below it flies as DL 816, scheduled at 4h 24m for the 1,762 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 SAT to BOS on the interactive map [Get started free](https://2lnr.com/login) 7 Flights a week, 4-week average 4h 24m Scheduled flight time 1,762 mi Nonstop distance Free To get started ## San Antonio to Boston flight schedule Scheduled nonstop departures for SAT to BOS 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 San Antonio (SAT) to Boston (BOS) | Date | Flight | Airline | Departs SAT | Arrives BOS | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | DL 816 | Delta Air Lines | 13:35 | 18:59 | 4h 24m | [Airbus A220-300](https://2lnr.com/seatmaps/dl/a220-300.md) | | Sat, Oct 24 | DL 816 | Delta Air Lines | 13:50 | 19:14 | 4h 24m | Airbus A220-300 | | Sun, Oct 25 | DL 816 | Delta Air Lines | 13:50 | 19:14 | 4h 24m | Airbus A220-300 | | Mon, Oct 26 | DL 816 | Delta Air Lines | 13:50 | 19:14 | 4h 24m | Airbus A220-300 | | Tue, Oct 27 | DL 816 | Delta Air Lines | 13:50 | 19:14 | 4h 24m | Airbus A220-300 | | Wed, Oct 28 | DL 816 | Delta Air Lines | 13:50 | 19:14 | 4h 24m | Airbus A220-300 | | Thu, Oct 29 | DL 816 | Delta Air Lines | 13:50 | 19:14 | 4h 24m | Airbus A220-300 | Showing all 7 scheduled SAT to BOS departures across 7 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 SAT to BOS date on the interactive map ## Aircraft on the San Antonio to Boston nonstop Delta Air Lines flies the [Airbus A220-300](https://2lnr.com/seatmaps/dl/a220-300.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 SAT to BOS departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for San Antonio to Boston to see which departures have space, the next 14 days free on every product and the full horizon on Pro. Delta Air Lines award space was open on 10 of the 13 San Antonio to Boston departure dates 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 SAT to BOS 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 SAT to BOS on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying San Antonio to Boston nonstop Carriers operating SAT to BOS nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) See SAT to BOS on the interactive map → ## Frequently asked questions about SAT to BOS **How long is the flight from San Antonio (SAT) to Boston (BOS)?** DL 816 is scheduled at 4h 24m from San Antonio (SAT) to Boston (BOS) on every departure in the schedule table on this page. The nonstop covers about 1,762 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SAT to BOS?** Delta Air Lines is currently the only airline flying SAT to BOS nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines. **How many flights a week are there from SAT to BOS?** About 7 nonstop flights a week run between San Antonio (SAT) and Boston (BOS) in the current schedule, operated by Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from SAT to BOS depart?** Scheduled SAT to BOS nonstops in the next 7 days with service leave between 13:35 and 13:50, local time at San Antonio. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate SAT to BOS nonstop?** Delta Air Lines flies DL 816 nonstop from San Antonio (SAT) to Boston (BOS), 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 SAT to BOS?** Open the SAT to BOS 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 [BOS to SAT upgrade and award space](https://2lnr.com/routes/bos-sat.md). Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from San Antonio (SAT)](https://2lnr.com/routes/sat.md), or [every route from Boston (BOS)](https://2lnr.com/routes/bos.md). Nonstops to Boston (BOS) from other airports within 150 miles of San Antonio (SAT): - [Austin (AUS) to Boston (BOS)](https://2lnr.com/routes/aus-bos.md), 66 miles from SAT 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 SAT to BOS 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)