Cheap Flights from San Antonio to Boston
No deal from San Antonio to Boston has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from San Antonio to Boston, the lowest round-trip fare we recorded was $163, in August. The typical fare was $307. August was the cheapest month we saw and July the dearest.
The most recent price we saw on this route was $321 on Frontier and Southwest, seen Oct 16. It is an unverified observation and may have changed.
See every deal <a href="/from/san-antonio">from San Antonio</a>, <a href="/to/boston">to Boston</a>, or the return direction <a href="/from/boston/to/san-antonio">Boston to San Antonio</a>.
Latest price we saw: San Antonio to Boston
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| San Antonio (SAT) to Boston (BOS) | $321 | 9.1¢ | Nov 14 – Nov 22 | Frontier and Southwest | Oct 16 | Check price |
Price history: San Antonio to Boston
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $217 | $372 | 78 |
| Sep 2026 | $205 | $318 | 111 |
| Aug 2026 | $163 | $234 | 144 |
| Jul 2026 | $304 | $304 | 1 |
Frequently asked questions
How many flight deals from San Antonio to Boston are on Sparkflights right now?
There are 0 verified deals from San Antonio to Boston on the board right now. The list refreshes hourly.
What is the lowest price ever seen from San Antonio to Boston?
The lowest fare we've recorded from San Antonio to Boston is $163, based on 334 price observations over 4 months.
How much does a flight from San Antonio to Boston cost?
The typical round-trip fare we observed from San Antonio to Boston is $307, against a recorded low of $163. These are observations, not quotes.
When is the cheapest month to fly San Antonio to Boston?
August was the cheapest month we observed from San Antonio to Boston and July the dearest, over 4 months of data.
What is the current price from San Antonio to Boston?
The most recent fare our sweep saw from San Antonio to Boston is $321, on Oct 16. It is an unverified observation rather than a verified deal, so check it before booking.