$91+ Cheap flights from San Antonio to Boston (SAT - BOS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Sep 16 — Sep 231
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Antonio to Boston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Antonio to Boston Logan Intl are usually found in September or January, booked 56 days in advance, depart on a Tuesday or Saturday and return on a Tuesday
Cheap flight deals from San Antonio to Boston
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Antonio to BostonExplore the most affordable flight options available from San Antonio to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from San Antonio to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
1 stop7h 48m
Tue 9/229:15 am -
Nonstop4h 25m
Deal found 8/14![Delta logo]()
$259
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:30 pm -
1 stop6h 40m
Mon 9/215:45 am -
1 stop6h 14m
Deal found 8/16![United Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:27 am -
1 stop9h 12m
Sat 9/264:59 pm -
1 stop6h 51m
Deal found 8/13![American Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:30 am -
1 stop8h 30m
Wed 9/165:50 pm -
1 stop6h 20m
Deal found 8/14![Southwest logo]()
$273
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:35 pm -
1 stop5h 30m
Sat 10/245:25 am -
2 stops9h 15m
Deal found 8/14![Southwest logo]()
$274
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:16 pm -
Nonstop4h 19m
Wed 9/169:15 am -
Nonstop4h 25m
Deal found 8/12![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:30 am -
1 stop8h 30m
Thu 9/109:40 am -
2 stops8h 30m
Deal found 8/13![Southwest logo]()
$283
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:30 pm -
1 stop5h 50m
Wed 9/167:30 am -
2 stops11h 25m
Deal found 8/13![Southwest logo]()
$284
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:25 am -
2 stops7h 20m
Mon 11/97:30 pm -
1 stop6h 25m
Deal found 8/13![Southwest logo]()
$286
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:30 pm -
1 stop6h 16m
Mon 11/25:17 pm -
1 stop6h 34m
Deal found 8/16![United Airlines logo]()
$288
Best flights from San Antonio to BostonDiscover carefully curated flight deals from San Antonio to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from San Antonio to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
1 stop7h 48m
Tue 9/229:15 am -
Nonstop4h 25m
Deal found 8/15![Delta logo]()
$259
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:35 pm -
1 stop5h 30m
Sat 10/245:25 am -
2 stops9h 15m
Deal found 8/14![Southwest logo]()
$274
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:36 am -
1 stop7h 16m
Mon 11/165:30 am -
1 stop6h 20m
Deal found 8/16![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
1 stop7h 48m
Sat 10/106:00 am -
1 stop7h 18m
Deal found 8/16![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:16 pm -
Nonstop4h 19m
Wed 9/169:15 am -
Nonstop4h 25m
Deal found 8/12![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:16 pm -
Nonstop4h 19m
Wed 9/169:15 am -
Nonstop4h 25m
Deal found 8/16![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:50 pm -
Nonstop4h 24m
Thu 11/199:15 am -
Nonstop4h 51m
Deal found 8/16![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:50 pm -
Nonstop4h 24m
Mon 11/97:00 pm -
1 stop6h 31m
Deal found 8/16![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:20 pm -
Nonstop4h 27m
Wed 9/97:10 pm -
1 stop5h 58m
Deal found 8/14![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:50 pm -
Nonstop4h 24m
Mon 10/268:00 am -
1 stop8h 24m
Deal found 8/16![Delta logo]()
$369
Last-minute flights from San Antonio to BostonDiscover last-minute flight deals from San Antonio to Boston. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Boston. Data last updated August 17, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:30 am -
1 stop8h 30m
Thu 9/109:40 am -
2 stops8h 30m
Deal found 8/13![Southwest logo]()
$283
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:30 pm -
1 stop5h 50m
Wed 9/167:30 am -
2 stops11h 25m
Deal found 8/13![Southwest logo]()
$284
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:30 am -
1 stop8h 30m
Wed 9/165:50 pm -
1 stop6h 20m
Deal found 8/14![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:16 pm -
Nonstop4h 19m
Wed 9/169:15 am -
Nonstop4h 25m
Deal found 8/12![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:20 pm -
1 stop8h 50m
Wed 9/165:40 am -
1 stop5h 59m
Deal found 8/16![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:00 pm -
2 stops8h 15m
Thu 9/175:50 am -
1 stop7h 35m
Deal found 8/12![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
1 stop7h 48m
Tue 9/229:15 am -
Nonstop4h 25m
Deal found 8/14![Delta logo]()
$259
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:30 pm -
1 stop6h 40m
Mon 9/215:45 am -
1 stop6h 14m
Deal found 8/16![United Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:27 am -
1 stop9h 12m
Sat 9/264:59 pm -
1 stop6h 51m
Deal found 8/13![American Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:50 am -
1 stop10h 25m
Fri 10/26:45 pm -
1 stop6h 10m
Deal found 8/16![Southwest logo]()
$305
One-way flights from San Antonio to BostonSearch for one-way flight options from San Antonio to Boston. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from San Antonio to Boston. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:03 am -
1 stop23h 19m
Deal found 8/14![Frontier logo]()
$91
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:45 am -
2 stops8h 05m
Deal found 8/13![Southwest logo]()
$96
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:30 am -
1 stop8h 30m
Deal found 8/13![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:30 pm -
1 stop6h 05m
Deal found 8/12![Southwest logo]()
$113
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:30 pm -
2 stops7h 50m
Deal found 8/13![Southwest logo]()
$114
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:40 pm -
1 stop6h 00m
Deal found 8/14![Southwest logo]()
$135
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:03 am -
1 stop23h 19m
Deal found 8/14![Frontier logo]()
$138
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:35 am -
2 stops7h 55m
Deal found 8/12![Southwest logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:20 pm -
2 stops37h 38m
Deal found 8/12![Frontier logo]()
$147
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:51 am -
1 stop22h 18m
Deal found 8/14![Frontier logo]()
$151
Find flight deals from San Antonio to Boston
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $259 (Delta) |
One-way from | $91 (Booking.com) |
Popular in | March |
Cheapest in | September |
Average price | $356 |
Good round-trip deal | $279 or less |
Good one-way deal | $208 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from San Antonio to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Sat 9/19
3:10 pm-11:58 pm
1 stop7h 48m
Boston Logan Intl
Tue 9/22
9:15 am-12:40 pm
Nonstop4h 25m
$259
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Tue 10/13
11:36 am-7:52 pm
1 stop7h 16m
Boston Logan Intl
Mon 11/16
5:30 am-10:50 am
1 stop6h 20m
$269
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Sat 9/19
3:10 pm-11:58 pm
1 stop7h 48m
Boston Logan Intl
Sat 10/10
6:00 am-12:18 pm
1 stop7h 18m
$269
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Tue 10/20
3:35 pm-10:05 pm
1 stop5h 30m
Boston Logan Intl
Sat 10/24
5:25 am-1:40 pm
2 stops9h 15m
$274
Quickest round-trip
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Wed 9/9
2:16 pm-7:35 pm
Nonstop4h 19m
Boston Logan Intl
Wed 9/16
9:15 am-12:40 pm
Nonstop4h 25m
$279
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 9/10
2:16 pm-7:35 pm
Nonstop4h 19m
Boston Logan Intl
Wed 9/16
9:15 am-12:40 pm
Nonstop4h 25m
$279
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Tue 10/13
1:50 pm-7:14 pm
Nonstop4h 24m
Boston Logan Intl
Thu 11/19
9:15 am-1:06 pm
Nonstop4h 51m
$304
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 11/5
1:50 pm-7:14 pm
Nonstop4h 24m
Boston Logan Intl
Mon 11/9
7:00 pm-12:31 am
1 stop6h 31m
$314
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Sat 9/5
1:20 pm-6:47 pm
Nonstop4h 27m
Boston Logan Intl
Wed 9/9
7:10 pm-12:08 am
1 stop5h 58m
$319
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 10/22
1:50 pm-7:14 pm
Nonstop4h 24m
Boston Logan Intl
Mon 10/26
8:00 am-3:24 pm
1 stop8h 24m
$369
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Boston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Boston in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Antonio to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from San Antonio with our price prediction graph.
SAT-BOS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Antonio to Boston
Prices
Airlines
More
How far ahead should I book a flight from San Antonio to Boston?
The best time to book flights from San Antonio to Boston is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Antonio to Boston?
Currently, September is the cheapest month in which you can book a flight from San Antonio to Boston (average of $342). Flying from San Antonio to Boston in March is currently the most expensive (average of $527). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SAT to BOS?
Find hourly flight availability from San Antonio to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 30% on flights from San Antonio to Boston by exploring options for tickets at noon.
What’s the top layover airport for flights from San Antonio to Boston?
Share of 1-stop round-trip flights from San Antonio to Boston chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 33% of 1-stop itineraries from San Antonio to Boston on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to Boston?
Average round-trip fare for 1-stop flights from San Antonio to Boston, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Charlotte (CLT) is the most affordable 1-stop option, with an average round-trip price of $268.
What’s the fastest layover option from San Antonio to Boston?
Shortest average travel time for 1-stop one-way flights from San Antonio to Boston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Nashville (BNA) have the shortest average one-way travel time for 1-stop routes: 5h 30m.
Which airport typically offers the quickest layover for flights from San Antonio to Boston?
Average layover duration for 1-stop one-way flights from San Antonio to Boston, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Nashville (BNA) offer the fastest connection on this route, with an average layover time of 0h 45m.
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated August 17, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from San Antonio to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Seekonk
Cranston
Dedham
Warwick
Peabody
Auburn
Chelsea
York Beach
Londonderry
Revere
Fitchburg
Swansea
North Falmouth
Braintree
Sandwich
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Boston flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Antonio
Popular flights
Alternative routes for San Antonio to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Antonio to Boston by cabin class
Find flights from San Antonio to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Antonio and Boston flights
Browse other San Antonio and Boston flight options. Last updated on August 17, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from San Antonio to Boston
Discover the top 6 airlines that operate flights from San Antonio to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$162 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$434 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$407 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$252 | Average$358 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$268 | Average$405 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$268 | Average$419 | FlexibilityNo cancel fee | On-time63% |