Earn point on your loyalty program!arrow arc left

Cheap flights from San Antonio (SAT) to Boston (BOS)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)

How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from San Antonio to Boston in January , February 2026

31 Jan - 24 Feb $ 254.00
SAT
San Antonio
Spirit Airlines
1 STOPS
BOS
Boston
BOS
Boston
Spirit Airlines
1 STOPS
SAT
San Antonio
Pick dates
19 Jan - 03 Feb $ 888.00
SAT
San Antonio
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
SAT
San Antonio
Pick dates
18 Jan - 04 Feb $ 1,041.00
SAT
San Antonio
Alaska Airlines
2 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
SAT
San Antonio
Pick dates

Last minute flights from San Antonio to Boston

29 Jan - 31 Jan $ 325.00
SAT
San Antonio
Spirit Airlines
1 STOPS
BOS
Boston
BOS
Boston
Spirit Airlines
1 STOPS
SAT
San Antonio
Pick dates
19 Jan - 31 Jan $ 690.00
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
Pick dates
19 Jan - 31 Jan $ 919.00
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
Pick dates

One-way flights to Boston from San Antonio

10:35 AM - 8:45 PM
Spirit Airlines
1 Stops
12h 22m
SAT - BOS
$ 155
Kiwi
Pick dates
12:15 PM - 5:20 PM
United Airlines
1 Stops
5h 42m
SAT - BOS
$ 456
Kiwi
Pick dates
12:15 PM - 5:20 PM
United Airlines
1 Stops
5h 42m
SAT - BOS
$ 529
Kiwi
Pick dates

How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from San Antonio (SAT) to Boston (BOS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.