Boston (BOS) to San Antonio (SAT)
Flight time
≈ 4h 19m
Bearing
249° W
Boston (BOS) to San Antonio (SAT) is 1,762 miles (2,835 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOS–SAT
Filed traffic dataIn July 2026, Delta Air Lines was the only carrier flying nonstop BOS–SAT; the Airbus A220-300 was the most common aircraft at 100% of departures; flights ran 92% full.
Departures
62
July 2026
Seats
8,060
both directions
Passengers
7,402
both directions
Load factor
91.8%
RPM ÷ ASM
Who flies BOS–SAT?
Delta Air Lines was the only carrier to fly nonstop BOS–SAT in July 2026 (62 departures).
- DL
62 departures · 8,060 seats
Share of departures100.0%91.8%
Load
What plane flies BOS–SAT?
In July 2026, the Airbus A220-300 flew 100% of BOS–SAT departures.
- Airbus A220-300
62 departures · 91.8% load
100.0%
How has BOS–SAT traffic changed?
Nonstop BOS–SAT departures rose from 59 in August 2025 to 62 in July 2026.
Monthly nonstop BOS–SAT traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
59 departures · 5,137 passengers
79.1%
Load
September 2025
60 departures · 5,022 passengers
76.8%
Load
October 2025
60 departures · 6,487 passengers
85.5%
Load
November 2025
54 departures · 5,088 passengers
74.3%
Load
December 2025
54 departures · 4,937 passengers
73.0%
Load
January 2026
56 departures · 4,639 passengers
63.9%
Load
February 2026
54 departures · 4,897 passengers
69.6%
Load
March 2026
62 departures · 6,860 passengers
83.9%
Load
April 2026
58 departures · 6,262 passengers
82.8%
Load
May 2026
59 departures · 6,388 passengers
82.9%
Load
June 2026
58 departures · 6,587 passengers
86.5%
Load
July 2026
62 departures · 7,402 passengers
91.8%
Load
By direction
Each direction is filed separately — they rarely match.
BOS → SAT
90.5% full
31 departures · 3,648 passengers
SAT → BOS
93.2% full
31 departures · 3,754 passengers
Nonstop BOS–SAT traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Boston (BOS) from San Antonio (SAT)?
BOS to SAT is 1,762 miles (2,835 km / 1,531 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to SAT?
A nonstop covers the 1,762-mile great-circle distance in roughly 4h 19m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–SAT?
In July 2026, the Airbus A220-300 flew the largest share of departures (100.0%).
What mileage do I earn flying BOS–SAT?
Distance-based programs credit off the 1,762-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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