Boston to San Antonio (BOS-SAT): nonstop upgrade & award space

Delta Air Lines flies the BOS to SAT nonstop about 5 times a week. Delta Air Lines sets the rhythm here, a few flights a day with a small premium cabin on each, so a date with open space is worth acting on the day you see it. 2LNR tracks confirmed upgrade and award space on Delta Air Lines, on every BOS to SAT 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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5
Nonstop flights a week
1,762 mi
Nonstop distance
Free
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Boston to San Antonio flight schedule

Scheduled nonstop departures for BOS to SAT, 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 Boston (BOS) to San Antonio (SAT)
Date Flight Airline Departs BOS Arrives SAT Duration Aircraft
DL 2652Delta Air Lines09:1512:524h 37m223
DL 816Delta Air Lines09:5513:214h 26m223
DL 816Delta Air Lines09:5513:214h 26m223
DL 816Delta Air Lines09:5513:214h 26m223
DL 816Delta Air Lines09:1512:404h 25m223
DL 2652Delta Air Lines09:1512:524h 37m223
DL 816Delta Air Lines09:1512:404h 25m223
DL 816Delta Air Lines09:1512:404h 25m223

Showing all 8 scheduled BOS to SAT 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 BOS to SAT date on the interactive map

Confirmed upgrade & award space on BOS to SAT 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 Antonio 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 BOS to SAT 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 BOS to SAT on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Boston to San Antonio nonstop

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

See BOS to SAT on the interactive map →

Frequently asked questions about BOS to SAT

How far is San Antonio from Boston?
BOS to SAT covers about 1,762 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 BOS to SAT?
Delta Air Lines is currently the only airline flying BOS to SAT nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines.
How many flights a week are there from BOS to SAT?
About 5 nonstop flights a week run between Boston and San Antonio 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 BOS to SAT depart?
Scheduled BOS to SAT nonstops in the next 7 days with service leave between 09:15 and 09:55, local time at Boston. 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 BOS to SAT?
Open the BOS to SAT 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.

Never miss BOS to SAT 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.

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