Direct (nonstop) flights from San Antonio to Boston
1 airline flys nonstop from San Antonio International (SAT) to Boston Logan International Airport (BOS). It's 1,763 miles (2,838 km), about 4h 11m in the air. Operated by Delta Air Lines.
Delta Air Lines
Route data last updated: May 27, 2026
Airlines with non-stop flights
DL
Delta Air Lines
Alternative Routes
Other ways to fly from San Antonio to Boston with one stop · direct emits 298 kg CO₂ per passenger
Looking for the return flight?
BOS → SAT: Flights from Boston to San AntonioOther direct flights from San Antonio
Direct flights from Boston (BOS)
Frequently Asked Questions
How long is the direct flight from San Antonio to Boston?
A nonstop flight from San Antonio (SAT) to Boston (BOS) takes approximately 4 hours and 11 minutes. The distance is 1,763 miles (2,838 km).
Which airlines fly nonstop from San Antonio to Boston?
Just Delta Air Lines.
Is there a nonstop flight from San Antonio to Boston?
Yes. 1 airline: Delta Air Lines.
How far is San Antonio from Boston?
The flight distance from San Antonio to Boston is 1,763 miles (2,838 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from San Antonio to Boston?
At 4h 11m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Antonio to Boston?
Roughly 298 kg CO2 per passenger one-way. That's about the same as driving 1,490 km.
Is the return flight from Boston to San Antonio also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from San Antonio to Boston?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at San Antonio International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.