Cheap flights from San Antonio to Boston from $109
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Boston departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Wed 10/28
3:40 pm-10:45 pm
1 stop6h 05m
Boston Logan Intl
Fri 10/30
6:35 pm-12:10 am
1 stop6h 35m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 10/29
4:55 pm-12:10 am
1 stop6h 15m
Boston Logan Intl
Fri 10/30
5:15 am-10:45 am
1 stop6h 30m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Fri 11/13
2:01 pm-7:12 pm
Nonstop4h 11m
Boston Logan Intl
Sun 11/22
9:15 am-1:06 pm
Nonstop4h 51m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Tue 1/5
2:00 pm-7:06 pm
Nonstop4h 06m
Boston Logan Intl
Mon 1/11
9:15 am-1:08 pm
Nonstop4h 53m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Fri 12/4
1:32 pm-10:13 am
1 stop19h 41m
Boston Logan Intl
Sun 12/6
11:08 am-12:47 pm
1 stop26h 39m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Sat 11/7
4:28 pm-11:58 pm
1 stop6h 30m
Boston Logan Intl
Wed 11/11
8:00 am-2:49 pm
1 stop7h 49m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 12/31
6:00 am-3:07 pm
1 stop8h 07m
Boston Logan Intl
Sun 1/10
7:00 am-1:14 pm
1 stop7h 14m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Sat 11/7
5:30 am-2:27 pm
1 stop7h 57m
Boston Logan Intl
Wed 11/11
1:32 pm-7:10 pm
1 stop6h 38m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Fri 11/6
4:19 pm-11:25 pm
1 stop6h 06m
Boston Logan Intl
Sat 11/7
7:15 am-1:16 pm
1 stop7h 01m
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Fri 10/16
10:03 am-11:02 am
1 stop23h 59m
Boston Logan Intl
Sun 10/18
11:47 am-9:08 am
1 stop22h 21m
See travel insights to Boston from
How to get the cheapest flight ticket from San Antonio to Boston
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between San Antonio and Boston?
Prices are currently low for flights on this route.
Typical prices usually range from $334 to $534.The lowest price recently found on this route was $287.
What is the cheapest month to fly to Boston?
In general, January is the cheapest month to fly from San Antonio to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $318. If you aren’t able to travel during the month of January, then book flights to Boston from San Antonio during August instead. Flights to Boston in August, while not as cheap as those in January, still average around $358.
What is the cheapest day to depart on your flight to Boston?
The cheapest day to depart from San Antonio to Boston is on a Saturday when prices can be found for as low as $438. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Monday is $597.
What is the cheapest time of day to depart on your flight to Boston?
According to our data, the cheapest time of day to fly to Boston is at noon. momondo users have found flights departing from San Antonio to Boston at noon for as low as $447. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $637 per ticket.
What is the cheapest San Antonio to Boston Logan Intl flight route?
Fly from San Antonio to Boston Logan Intl for the best San Antonio - Boston Logan Intl flight prices
How far in advance should I book a flight from San Antonio to Boston?
You are more likely to see cheaper flights to Boston from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $416 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from San Antonio for as low as $355 on momondo.
What cabin class options are available on San Antonio to Boston flights?
There are 4 cabin classes available to choose from on San Antonio to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on San Antonio to Boston flights?
You could potentially save up to 7% on your flight if you consider stops on a San Antonio to Boston flight.
How have San Antonio to Boston flight prices changed over time?
As of October 2026, prices for San Antonio to Boston flights are approximately 12% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from San Antonio to Boston Logan Intl?
Southwest is the most popular carrier operating from San Antonio to Boston Logan Intl
What airlines fly to Boston?
Delta, JetBlue and Southwest are the top three most popular airlines that fly to Boston from San Antonio according to our data. Delta is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 6 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between San Antonio and Boston?
Baltimore (BWI) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from San Antonio to Boston?
Flights via Detroit (DTW) offer the lowest average round-trip price of $348.
Which layover airport has the shortest travel time from San Antonio to Boston?
Flights connecting via Baltimore (BWI) have the shortest average one-way travel time: 5h 38m.
Which layover airport has the shortest connection time from San Antonio to Boston?
Detroit (DTW) has the shortest average layover time for this route: 0h 52m.
When to book flights from San Antonio to Boston
Cheap San Antonio to Boston (SAT to BOS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Antonio to Boston
Frequently asked questions about flying from San Antonio to Boston
How far is San Antonio to Boston Logan Intl by plane?
San Antonio and Boston Logan Intl are 1763.9 mi apart from one another. Typically, this will take 4h 06m by plane in normal conditions.
When did momondo last update prices for flights from San Antonio Airport to Boston Logan Intl Airport?
Prices for flights from San Antonio Airport to Boston Logan Intl Airport refresh daily.
How many operators does momondo search for flights from San Antonio Airport to Boston Logan Intl Airport?
The number of operators available for flights from San Antonio Airport to Boston Logan Intl Airport is 6 as of October 2026.
How old do you have to be to fly from San Antonio Airport to Boston Logan Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Antonio to Boston?
Based on momondo bookings for flights between San Antonio and Boston, the leading plane model is Airbus A220-300, making up 34.21% of the total bookings. Other popular models include Airbus A220 with 31.58%, Airbus A320-100/200 with 13.16%, and Airbus A319 with 5.26%.
What is the most popular airline from San Antonio to Boston?
Based on momondo bookings for flights between San Antonio and Boston, the leading airline is Delta, making up 58% of the total bookings. Other popular airlines include Southwest with 21%, American Airlines with 12%, and United Airlines with 6%.
Best airlines flying from San Antonio to Boston
Compare and see reviews for airlines that fly from San Antonio to Boston with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $151 | Free Cancellation | Rating 5.5 2,550 reviews | |||
| PriceFrom $240 | Free Cancellation | Rating 7.0 12,129 reviews | |||
| PriceFrom $249 | Free Cancellation | Rating 7.8 8,634 reviews | |||
| PriceFrom $252 | Free Cancellation | Rating 7.1 3,044 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.4 10,287 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.9 4,214 reviews |
Delta Flights From San Antonio to Boston
The lowest priced Delta flight from San Antonio to Boston from the last 72 hours was $249. Generally, Delta has 1 flight on this route every week with an average price of $405. Delta is rated 7.8/10 by our users.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Antonio to Boston?
It is quick and easy to find San Antonio to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.
Can I find flights from San Antonio to Boston with flexible booking policies on momondo?
momondo does allow users to show only those flights to Boston from San Antonio which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from San Antonio to Boston?
momondo helps you find the best flight between San Antonio and Boston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from San Antonio to Boston right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Boston from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.