SAT → BOSSan Antonio to Boston

live

Direct flights from San Antonio (SAT) to Boston (BOS): 7 nonstop departures observed each week across 1 airline. The median arrival is 94 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 2,836 km, an estimated 4 hours 8 minutes in the air. Measured by Pro Flight Search from live flight boards at San Antonio and Boston. Updated 15 September 2026 at 16:53 UTC.

SAT San Antonio smooth · +0
BOS Boston smooth · +0
2,836 km · ~4h 08m est.
departs 08:207x weekly
Running clean · 1 airline · 7x weekly · nonstop
100 / 100

route health from live SAT and BOS delay boards

Median arrival delay is +94 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+94 minacross the last 1 operated legs
Flight time~4h 08mestimated from route distance
Weekly departures7x1 direct airline on the leg

Who flies it

observed on the boards · 7 days
Delta Air LinesDL

Flights DL816 varies daily

History

operated legs · board outcomes
09-13DL816arrived+94

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SATSan Antonio +0 min smooth 🌤 clear · SSE 11 kt Full SAT delay board →
BOSBoston +0 min smooth 🌤 few clouds · E 7 kt Full BOS delay board →

Weather lens

Current conditions put the pressure at BOS: 41% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the San Antonio to Boston route actually runs

Pro Flight Search records official board updates for nonstop SAT to BOS flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — San Antonio (SAT) to Boston (BOS) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SAT-BOS
How we measure this →

SAT to BOS questions

Is SAT–BOS running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from SAT to BOS?

Great-circle distance is 2,836 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 230–273 min gate-to-gate on this route.

How often does SAT–BOS fly?

Delta Air Lines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at SAT and arrival-side delay at BOS, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.