$126+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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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 61 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 July 28, 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 July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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 8/281:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Thu 9/36:50 am
BOS
- SAT
1 stop7h 48m
Delta
Deal found 7/27![Delta logo]()
$259
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:34 am
SAT
- BOS
1 stop22h 35m
Frontier
Thu 10/229:15 am
BOS
- SAT
1 stop25h 24m
Frontier
Deal found 7/26![Frontier logo]()
$263
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 9/102:03 pm
SAT
- BOS
1 stop7h 21m
American Airlines
Thu 9/173:15 pm
BOS
- SAT
1 stop6h 09m
American Airlines
Deal found 7/27![American Airlines logo]()
$266
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 8/2812:29 pm
SAT
- BOS
1 stop5h 45m
American Airlines
Thu 9/32:32 pm
BOS
- SAT
1 stop6h 05m
American Airlines
Deal found 7/27![American Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 7/23. 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 8/275:45 pm
SAT
- BOS
1 stop6h 40m
Delta
Wed 9/23:14 pm
BOS
- SAT
1 stop6h 50m
Delta
Deal found 7/23![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/22. 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 8/196:30 am
SAT
- BOS
1 stop7h 10m
Southwest
Wed 8/267:30 am
BOS
- SAT
1 stop6h 20m
Southwest
Deal found 7/22![Southwest logo]()
$273
This Southwest deal was found by Cheapflights users on 7/27. 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 8/287:00 am
SAT
- BOS
1 stop8h 10m
Southwest
Thu 9/35:25 am
BOS
- SAT
2 stops8h 25m
Southwest
Deal found 7/27![Southwest logo]()
$274
This Southwest deal was found by Cheapflights users on 7/22. 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 8/133:25 pm
SAT
- BOS
1 stop5h 55m
Southwest
Wed 8/193:20 pm
BOS
- SAT
1 stop8h 50m
Southwest
Deal found 7/22![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 7/22. 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 8/191:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Wed 8/269:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/22![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 7/23. 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 8/271:00 pm
SAT
- BOS
2 stops8h 10m
Southwest
Wed 9/25:25 am
BOS
- SAT
2 stops8h 25m
Southwest
Deal found 7/23![Southwest logo]()
$280
This Southwest deal was found by Cheapflights users on 7/22. 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 8/133:25 pm
SAT
- BOS
1 stop5h 55m
Southwest
Tue 8/185:35 am
BOS
- SAT
2 stops8h 15m
Southwest
Deal found 7/22![Southwest logo]()
$282
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 July 28, 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 July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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 9/104:21 pm
SAT
- BOS
1 stop7h 56m
Delta
Sun 9/139:15 am
BOS
- SAT
Nonstop4h 25m
Delta
Deal found 7/27![Delta logo]()
$259
This Southwest deal was found by Cheapflights users on 7/25. 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 8/282:20 pm
SAT
- BOS
1 stop9h 10m
Southwest
Thu 9/35:50 am
BOS
- SAT
2 stops8h 00m
Southwest
Deal found 7/25![Southwest logo]()
$274
This Delta deal was found by Cheapflights users on 7/27. 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
SAT
- BOS
1 stop7h 20m
Delta
Mon 11/96:00 am
BOS
- SAT
1 stop6h 57m
Delta
Deal found 7/27![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/24. 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 9/143:25 pm
SAT
- BOS
1 stop6h 00m
Southwest
Wed 9/165:25 am
BOS
- SAT
2 stops8h 25m
Southwest
Deal found 7/24![Southwest logo]()
$274
This Southwest deal was found by Cheapflights users on 7/24. 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 11/207:30 am
SAT
- BOS
1 stop5h 15m
Southwest
Mon 11/236:35 pm
BOS
- SAT
1 stop6h 30m
Southwest
Deal found 7/24![Southwest logo]()
$299
This Delta deal was found by Cheapflights users on 7/25. 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 8/191:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Sun 8/239:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/25![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 7/23. 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 8/205:35 am
SAT
- BOS
2 stops7h 55m
Southwest
Thu 8/275:50 am
BOS
- SAT
2 stops9h 25m
Southwest
Deal found 7/23![Southwest logo]()
$310
This Delta deal was found by Cheapflights users on 7/26. 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 9/251:55 pm
SAT
- BOS
1 stop8h 36m
Delta
Sat 10/39:15 am
BOS
- SAT
Nonstop4h 25m
Delta
Deal found 7/26![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 7/27. 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.
Mon 8/241:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Tue 9/86:05 am
BOS
- SAT
1 stop7h 10m
Delta
Deal found 7/27![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 7/23. 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 8/111:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Sat 8/228:55 am
BOS
- SAT
1 stop8h 44m
Delta
Deal found 7/23![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 7/26. 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 8/1411:29 am
SAT
- BOS
1 stop7h 29m
Delta
Sun 8/239:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/26![Delta logo]()
$369
Last-minute flights from San Antonio to BostonDiscover last-minute flight deals from San Antonio to Boston. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Boston. Data last updated July 28, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 7/23. 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.
Sat 8/14:26 pm
SAT
- BOS
1 stop15h 43m
Frontier
Sun 10/119:15 am
BOS
- SAT
1 stop25h 24m
Frontier
Deal found 7/23![Frontier logo]()
$354
This Southwest deal was found by Cheapflights users on 7/23. 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 8/14:40 pm
SAT
- BOS
1 stop5h 40m
Southwest
Thu 8/135:00 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/23![Southwest logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sat 8/14:26 pm
SAT
- BOS
1 stop15h 43m
Multiple Airlines
Wed 8/128:41 am
BOS
- SAT
1 stop25h 34m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 7/23. 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 8/510:46 am
SAT
- BOS
1 stop6h 24m
Delta
Sat 8/2212:20 pm
BOS
- SAT
1 stop7h 26m
Delta
Deal found 7/23![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 7/23. 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 8/511:30 am
SAT
- BOS
2 stops8h 50m
Southwest
Sat 8/225:00 am
BOS
- SAT
1 stop6h 00m
Southwest
Deal found 7/23![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 7/25. 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 8/51:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Wed 8/199:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/25![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 7/23. 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 8/51:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Tue 8/189:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/23![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 7/23. 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 8/51:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Sun 8/166:05 am
BOS
- SAT
1 stop6h 37m
Delta
Deal found 7/23![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 7/23. 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 8/612:05 pm
SAT
- BOS
1 stop9h 20m
Delta
Wed 8/199:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/23![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 7/23. 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 8/612:37 pm
SAT
- BOS
1 stop9h 06m
Delta
Mon 8/176:05 am
BOS
- SAT
1 stop6h 37m
Delta
Deal found 7/23![Delta logo]()
$414
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 July 28, 2026.
Search for one-way flight options from San Antonio to Boston. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Booking.com deal was found by Cheapflights users on 7/27. 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 9/1110:05 am
SAT
- BOS
1 stop23h 46m
Frontier
Deal found 7/27![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 7/24. 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.
Mon 10/1910:34 am
SAT
- BOS
1 stop22h 35m
Frontier
Deal found 7/24![Frontier logo]()
$129
This Southwest deal was found by Cheapflights users on 7/27. 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 10/241:50 pm
SAT
- BOS
1 stop8h 25m
Southwest
Deal found 7/27![Southwest logo]()
$135
This Southwest deal was found by Cheapflights users on 7/25. 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 8/225:40 am
SAT
- BOS
1 stop6h 05m
Southwest
Deal found 7/25![Southwest logo]()
$152
This Southwest deal was found by Cheapflights users on 7/27. 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 10/265:25 am
SAT
- BOS
2 stops7h 35m
Southwest
Deal found 7/27![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 7/26. 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 8/217:20 am
SAT
- BOS
1 stop8h 45m
Southwest
Deal found 7/26![Southwest logo]()
$170
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:05 am
SAT
- BOS
1 stop23h 46m
Frontier
Deal found 7/26![Frontier logo]()
$176
This Southwest deal was found by Cheapflights users on 7/23. 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 9/242:55 pm
SAT
- BOS
1 stop6h 20m
Southwest
Deal found 7/23![Southwest logo]()
$185
This Booking.com deal was found by Cheapflights users on 7/25. 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.
Sat 8/14:26 pm
SAT
- BOS
1 stop15h 43m
Frontier
Deal found 7/25![Frontier logo]()
$187
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $259 (Delta) |
One-way from | $126 (Booking.com) |
Popular in | March |
Cheapest in | September |
Average price | $412 |
Good round-trip deal | $279 or less |
Good one-way deal | $198 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 July 28, 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 - BOS
SATBOS
San Antonio
Thu 9/10
4:21 pm-1:17 am
1 stop7h 56m
Boston Logan Intl
Sun 9/13
9:15 am-12:40 pm
Nonstop4h 25m
$259
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 11/6
5:00 pm-1:20 am
1 stop7h 20m
Boston Logan Intl
Mon 11/9
6:00 am-11:57 am
1 stop6h 57m
$269
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 8/28
2:20 pm-12:30 am
1 stop9h 10m
Boston Logan Intl
Thu 9/3
5:50 am-12:50 pm
2 stops8h 00m
$274
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Mon 9/14
3:25 pm-10:25 pm
1 stop6h 00m
Boston Logan Intl
Wed 9/16
5:25 am-12:50 pm
2 stops8h 25m
$274
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 11/20
7:30 am-1:45 pm
1 stop5h 15m
Boston Logan Intl
Mon 11/23
6:35 pm-12:05 am
1 stop6h 30m
$299
Quickest round-trip
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 8/19
1:20 pm-6:47 pm
Nonstop4h 27m
Boston Logan Intl
Sun 8/23
9:01 am-12:25 pm
Nonstop4h 24m
$309
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 8/20
5:35 am-2:30 pm
2 stops7h 55m
Boston Logan Intl
Thu 8/27
5:50 am-2:15 pm
2 stops9h 25m
$310
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 9/25
1:55 pm-11:31 pm
1 stop8h 36m
Boston Logan Intl
Sat 10/3
9:15 am-12:40 pm
Nonstop4h 25m
$314
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Mon 8/24
1:20 pm-6:47 pm
Nonstop4h 27m
Boston Logan Intl
Tue 9/8
6:05 am-12:15 pm
1 stop7h 10m
$314
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 8/11
1:20 pm-6:47 pm
Nonstop4h 27m
Boston Logan Intl
Sat 8/22
8:55 am-4:39 pm
1 stop8h 44m
$339
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 July.
| 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
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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, September is the cheapest month in which you can book a flight from San Antonio to Boston (average of $343). 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 July 28, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 29% 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 50% 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.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $358.
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 July 28, 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.
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
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
Cambridge
Concord
Randolph
Brockton
Seekonk
Hampton Beach
Cranston
Warwick
Peabody
Dedham
Auburn
York Beach
Chelsea
Londonderry
Swansea
Fitchburg
North Falmouth
Braintree
Revere
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Other flights to Boston
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Complete your trip
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San Antonio and Boston flights
Browse other San Antonio and Boston flight options. Last updated on July 28, 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 July 28, 2026.
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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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$162 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$229 | Average$358 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$402 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$408 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$422 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$419 | FlexibilityNo cancel fee | On-time69% |