$121+ Cheap flights from San Antonio to Boston (SAT - BOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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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 January or August, booked 61 days in advance, depart on a Tuesday or Wednesday 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 September 6, 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 September 6, 2026.
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:07 pm -
1 stop12h 55m
Fri 12/1111:57 am -
1 stop9h 15m
Deal found 9/2![Frontier logo]()
$266
This Delta deal was found by Cheapflights users on 9/2. 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 11/102:01 pm -
Nonstop4h 11m
Tue 11/179:15 am -
Nonstop4h 51m
Deal found 9/2![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 9/3. 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 10/31:35 pm -
Nonstop4h 21m
Tue 10/65:35 am -
1 stop6h 06m
Deal found 9/3![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 9/6. 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 11/54:55 pm -
1 stop5h 25m
Mon 11/97:30 pm -
1 stop6h 25m
Deal found 9/6![Southwest logo]()
$289
This Delta deal was found by Cheapflights users on 9/5. 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 10/291:50 pm -
Nonstop4h 24m
Sat 11/79:20 am -
Nonstop4h 32m
Deal found 9/5![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 9/6. 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.
Fri 11/65:00 pm -
1 stop7h 20m
Sat 11/79:20 am -
Nonstop4h 32m
Deal found 9/6![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 9/5. 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 10/2311:45 am -
1 stop12h 30m
Wed 10/289:05 am -
2 stops7h 55m
Deal found 9/5![Southwest logo]()
$300
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/36:00 am -
1 stop7h 35m
Mon 10/55:45 am -
1 stop6h 19m
Deal found 9/1![United Airlines logo]()
$306
This Southwest deal was found by Cheapflights users on 9/3. 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 9/293:30 pm -
1 stop5h 50m
Mon 10/56:05 pm -
1 stop7h 40m
Deal found 9/3![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 9/6. 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.
Fri 10/236:20 pm -
1 stop6h 00m
Mon 10/267:15 pm -
1 stop6h 18m
Deal found 9/6![Delta logo]()
$309
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 September 6, 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 September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/6. 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 11/36:45 am -
2 stops8h 05m
Sat 11/75:35 am -
1 stop6h 20m
Deal found 9/6![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 9/306:35 am -
1 stop6h 32m
Sun 10/45:45 am -
1 stop6h 19m
Deal found 9/3![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 9/1. 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.
Fri 11/63:05 pm -
1 stop7h 54m
Mon 11/99:15 am -
Nonstop4h 51m
Deal found 9/1![Delta logo]()
$334
This Southwest deal was found by Cheapflights users on 9/4. 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 11/62:20 pm -
2 stops8h 30m
Tue 11/103:30 pm -
2 stops8h 35m
Deal found 9/4![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 9/4. 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 10/221:20 pm -
1 stop8h 48m
Mon 10/267:15 pm -
1 stop6h 18m
Deal found 9/4![Delta logo]()
$414
This Southwest deal was found by Cheapflights users on 9/2. 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 10/133:20 pm -
1 stop5h 55m
Sun 10/185:25 am -
1 stop6h 10m
Deal found 9/2![Southwest logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 11/611:45 am -
2 stops9h 14m
Mon 11/912:00 pm -
2 stops11h 51m
Deal found 9/1![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 9/5. 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.
Fri 9/251:20 pm -
1 stop8h 50m
Sat 10/36:05 am -
1 stop7h 10m
Deal found 9/5![Delta logo]()
$419
This Southwest deal was found by Cheapflights users on 9/1. 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 10/23:20 pm -
2 stops7h 30m
Mon 10/56:05 pm -
1 stop7h 40m
Deal found 9/1![Southwest logo]()
$423
This Delta deal was found by Cheapflights users on 9/3. 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.
Fri 9/251:20 pm -
1 stop8h 50m
Mon 9/285:15 pm -
1 stop6h 29m
Deal found 9/3![Delta logo]()
$424
This Southwest deal was found by Cheapflights users on 9/1. 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.
Sat 10/312:35 pm -
2 stops8h 00m
Mon 10/51:10 pm -
2 stops8h 20m
Deal found 9/1![Southwest logo]()
$453
Last-minute flights from San Antonio to BostonDiscover last-minute flight deals from San Antonio to Boston. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Boston. Data last updated September 6, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/2. 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 9/291:30 pm -
2 stops7h 50m
Mon 10/56:05 pm -
1 stop7h 40m
Deal found 9/2![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 9/1. 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 9/291:30 pm -
2 stops7h 50m
Wed 10/75:15 am -
2 stops8h 10m
Deal found 9/1![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 9/2. 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 10/31:35 pm -
Nonstop4h 21m
Tue 10/65:35 am -
1 stop6h 06m
Deal found 9/2![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/36:00 am -
1 stop7h 35m
Mon 10/55:45 am -
1 stop6h 19m
Deal found 9/1![United Airlines logo]()
$306
This Southwest deal was found by Cheapflights users on 9/3. 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 10/193:20 pm -
2 stops7h 15m
Wed 10/285:35 am -
1 stop6h 20m
Deal found 9/3![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 9/5. 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 10/2311:45 am -
1 stop12h 30m
Wed 10/289:05 am -
2 stops7h 55m
Deal found 9/5![Southwest logo]()
$300
This Delta deal was found by Cheapflights users on 9/6. 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.
Fri 10/236:20 pm -
1 stop6h 00m
Mon 10/267:15 pm -
1 stop6h 18m
Deal found 9/6![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 9/6. 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 10/287:30 am -
2 stops8h 15m
Tue 11/35:10 am -
2 stops9h 05m
Deal found 9/6![Southwest logo]()
$299
This Southwest deal was found by Cheapflights users on 9/6. 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 10/294:40 pm -
1 stop6h 15m
Sat 11/75:35 am -
1 stop6h 20m
Deal found 9/6![Southwest logo]()
$289
This Delta deal was found by Cheapflights users on 9/5. 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 10/291:50 pm -
Nonstop4h 24m
Sat 11/79:20 am -
Nonstop4h 32m
Deal found 9/5![Delta logo]()
$290
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 September 6, 2026.
Search for one-way flight options from San Antonio to Boston. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Booking.com deal was found by Cheapflights users on 9/3. 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 10/1610:03 am -
1 stop23h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$121
This Super.com deal was found by Cheapflights users on 9/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:05 am -
1 stop23h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:07 pm -
1 stop12h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$139
This Southwest deal was found by Cheapflights users on 9/6. 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 10/294:40 pm -
1 stop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southwest logo]()
$145
This Booking.com deal was found by Cheapflights users on 9/4. 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 9/3010:03 am -
1 stop23h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$146
This Southwest deal was found by Cheapflights users on 9/4. 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 10/53:20 pm -
2 stops7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$150
This Southwest deal was found by Cheapflights users on 9/2. 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 9/282:55 pm -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 11/612:38 pm -
2 stops18h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$164
This Southwest deal was found by Cheapflights users on 9/3. 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 12/26:45 am -
2 stops8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$168
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 September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $266 (Frontier) |
One-way from | $121 (Booking.com) |
Popular in | March |
Cheapest in | January |
Average price | $363 |
Good round-trip deal | $319 or less |
Good one-way deal | $263 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 7,457,451 searches. Data last updated September 6, 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
Thu 10/29
4:40 pm-11:55 pm
1 stop6h 15m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$145
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Wed 11/4
5:30 am-2:30 pm
1 stop8h 00m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$145
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Sat 12/5
12:05 pm-6:55 pm
1 stop5h 50m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$145
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 12/3
1:00 pm-9:40 pm
2 stops7h 40m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$150
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Wed 12/2
6:16 am-6:56 pm
2 stops11h 40m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 3/4
5:00 am-2:00 pm
1 stop8h 00m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$200
Quickest round-trip
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Thu 12/3
2:12 pm-7:23 pm
Nonstop4h 11m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$214
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Tue 12/1
5:16 am-12:39 pm
1 stop6h 23m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$224
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Tue 11/10
2:01 pm-7:12 pm
Nonstop4h 11m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$224
San AntonioBoston
SAT San Antonio - BOS Boston Logan Intl
SATBOS
San Antonio
Fri 12/4
2:12 pm-7:23 pm
Nonstop4h 11m
Boston Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$224
Showing 1-10 of 23 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 September.
| 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
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 60 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, January is the cheapest month in which you can book a flight from San Antonio to Boston (average of $349). 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 September 6, 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 September 6, 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.
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
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
Dedham
Cranston
Warwick
Pawtucket
Peabody
Auburn
Revere
York Beach
Londonderry
Fitchburg
North Falmouth
Swansea
Chelsea
Braintree
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Other flights to Boston
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San Antonio and Boston flights
Browse other San Antonio and Boston flight options. Last updated on September 6, 2026.
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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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$162 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$243 | Average$358 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$249 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$268 | Average$419 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$278 | Average$419 | FlexibilityNo cancel fee | On-time69% |