Cheap flights from Boston to San Antonio from $392 BOS → SAT
Logan International Airport (BOS) → San Antonio International Airport (SAT)
The cheapest return found recently is $392 with American Airlines, 7 Apr 2027 – 14 Apr 2027, found today.
- Cheapest return found recently
- $392, 7 Apr 2027 to 14 Apr 2027
- Usual return price
- $419 to $459
- Cheapest month to fly
- April 2027, return fares from $392 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $419 to $459.
Cheapest return found recently
$392
7 Apr 2027 – 14 Apr 2027 · American Airlines
Logan International Airport (BOS) → San Antonio International Airport (SAT)
Leaves 10:15 a.m. · Return leaves 5:00 a.m. · 12 h 17 min of travel, both ways together
out 1 stop, back 1 stop
found today
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$392 7 Apr 2027 – 14 Apr 2027found todaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 14 days, 24 Sept to 22 Oct, the cheapest return we saw each day was $150 to $403.
14 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 18 Mar 2027 to 14 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 7-night return fares leaving within 3 days of 7 Apr 2027 to compare.
Every date we hold
5 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 18 Mar 2027 – 28 Mar 2027 | $496 | Southwest Airlines | Logan International Airport (BOS) → San Antonio International Airport (SAT) | out 1 stop, back 1 stop | found today | See prices for these dates |
| 7 Apr 2027 – 14 Apr 2027 | $392 | American Airlines | Logan International Airport (BOS) → San Antonio International Airport (SAT) | out 1 stop, back 1 stop | found today | See prices for these dates |
| 13 Apr 2027 – 14 Apr 2027 | $428 | Southwest Airlines | Logan International Airport (BOS) → San Antonio International Airport (SAT) | out 1 stop, back 1 stop | found today | See prices for these dates |
| 14 Apr 2027 – 14 Apr 2027 | $446 | Southwest Airlines | Logan International Airport (BOS) → San Antonio International Airport (SAT) | out 1 stop, back 1 stop | found today | See prices for these dates |
Which month looks cheapest?
April 2027 is the cheapest month — from $392.
Airlines on the cheapest dates: Southwest Airlines, American Airlines.
Premium cabin fares from Boston to San Antonio
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 7 Apr 2027 – 14 Apr 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Boston to San Antonio?
Return
Not enough history yet: in 14 days of return prices, 24 Sept to 22 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Boston → Austin
118 km from San Antonio
$268
$124 less than flying to San Antonio
21 Jan 2027 – 24 Jan 2027 · BOS → AUS · out nonstop, back nonstop
found 3 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Boston → Austin
118 km from San Antonio
$134
14 Dec · BOS → AUS · nonstop
found 3 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 7 Apr 2027 – 14 Apr 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Boston to San Antonio?
The cheapest return found recently is $392 with American Airlines, 7 Apr 2027 to 14 Apr 2027, found today. The cheapest return fare on each of 4 departure dates is usually $419 to $459.
What is the cheapest month to fly from Boston to San Antonio?
April 2027 is the cheapest month for a return, from $392, 7 Apr 2027 to 14 Apr 2027, found today.
Which airlines have the cheapest flights from Boston to San Antonio?
Between 18 Mar 2027 and 14 Apr 2027, Southwest Airlines has the cheapest return on 3 of the 4 departure dates we hold, and American Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work