$112+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
May 17 — May 241
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 August or September, booked 70 days in advance, depart on a Thursday or Saturday and return on a Tuesday
Cheap flight deals from San Antonio to Boston
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Best
Last-minute
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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 April 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 April 17, 2026.
This CheapOair deal was found by Cheapflights users on 4/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:09 pm
SAT
- BOS
1 stop29h 29m
Spirit Airlines
Tue 7/146:00 am
BOS
- SAT
1 stop13h 09m
Spirit Airlines
Deal found 4/16![Spirit Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:45 am
SAT
- BOS
1 stop6h 09m
Delta
Sun 8/239:15 am
BOS
- SAT
Nonstop4h 37m
Delta
Deal found 4/13![Delta logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:26 pm
SAT
- BOS
2 stops30h 58m
Multiple Airlines
Mon 6/15:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:54 pm
SAT
- BOS
2 stops28h 30m
Multiple Airlines
Sun 5/175:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:54 pm
SAT
- BOS
2 stops28h 30m
Multiple Airlines
Mon 5/185:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:54 pm
SAT
- BOS
2 stops24h 48m
Multiple Airlines
Sat 6/68:40 am
BOS
- SAT
1 stop25h 35m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:00 am
SAT
- BOS
1 stop16h 54m
Spirit Airlines
Thu 8/2712:51 pm
BOS
- SAT
1 stop11h 58m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$356
This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:26 pm
SAT
- BOS
2 stops27h 16m
Spirit Airlines
Mon 5/255:45 am
BOS
- SAT
1 stop11h 31m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:00 pm
SAT
- BOS
2 stops17h 16m
Multiple Airlines
Mon 5/45:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:19 pm
SAT
- BOS
1 stop6h 01m
Delta
Mon 7/138:16 am
BOS
- SAT
1 stop9h 55m
Delta
Deal found 4/13![Delta logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:04 pm
SAT
- BOS
1 stop27h 54m
Multiple Airlines
Tue 8/116:00 am
BOS
- SAT
2 stops35h 13m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:54 pm
SAT
- BOS
2 stops28h 30m
Multiple Airlines
Sat 5/99:29 am
BOS
- SAT
1 stop24h 26m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$361
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 April 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 April 17, 2026.
This Delta deal was found by Cheapflights users on 4/16. 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.
Wed 6/171:20 pm
SAT
- BOS
Nonstop4h 28m
Delta
Mon 8/105:45 am
BOS
- SAT
1 stop8h 22m
Delta
Deal found 4/16![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 4/16. 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.
Fri 6/124:50 pm
SAT
- BOS
1 stop5h 35m
Southwest
Fri 6/195:35 am
BOS
- SAT
1 stop5h 40m
Southwest
Deal found 4/16![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 4/16. 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.
Wed 8/51:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Mon 8/106:55 am
BOS
- SAT
1 stop7h 12m
Delta
Deal found 4/16![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 4/13. 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.
Fri 6/54:50 pm
SAT
- BOS
1 stop5h 35m
Southwest
Wed 8/55:35 am
BOS
- SAT
2 stops8h 15m
Southwest
Deal found 4/13![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 4/12. 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 8/1912:50 pm
SAT
- BOS
1 stop5h 55m
Delta
Sun 8/235:40 am
BOS
- SAT
1 stop7h 25m
Delta
Deal found 4/12![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 4/14. 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.
Mon 6/153:45 pm
SAT
- BOS
2 stops7h 20m
Southwest
Thu 6/185:45 am
BOS
- SAT
1 stop7h 05m
Southwest
Deal found 4/14![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 4/14. 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 8/51:30 pm
SAT
- BOS
2 stops7h 45m
Southwest
Tue 8/115:25 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 4/14![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 5/281:06 pm
SAT
- BOS
Nonstop4h 19m
Delta
Sun 5/315:40 am
BOS
- SAT
1 stop6h 14m
Delta
Deal found 4/15![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 4/13. 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 7/86:10 am
SAT
- BOS
2 stops7h 50m
Southwest
Wed 7/85:00 pm
BOS
- SAT
2 stops7h 55m
Southwest
Deal found 4/13![Southwest logo]()
$369
This Delta deal was found by Cheapflights users on 4/16. 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 5/91:06 pm
SAT
- BOS
Nonstop4h 19m
Delta
Tue 5/194:30 pm
BOS
- SAT
1 stop9h 14m
Delta
Deal found 4/16![Delta logo]()
$379
This Southwest deal was found by Cheapflights users on 4/12. 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 7/133:45 pm
SAT
- BOS
1 stop7h 20m
Southwest
Fri 7/174:45 pm
BOS
- SAT
1 stop8h 20m
Southwest
Deal found 4/12![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 4/12. 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.
Thu 10/89:25 am
SAT
- BOS
1 stop7h 30m
Southwest
Wed 10/149:00 am
BOS
- SAT
1 stop9h 00m
Southwest
Deal found 4/12![Southwest logo]()
$388
Last-minute flights from San Antonio to BostonDiscover last-minute flight deals from San Antonio to Boston. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Boston. Data last updated April 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:00 pm
SAT
- BOS
2 stops17h 16m
Multiple Airlines
Mon 5/45:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:54 pm
SAT
- BOS
2 stops28h 30m
Multiple Airlines
Sat 5/99:29 am
BOS
- SAT
1 stop24h 26m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:26 pm
SAT
- BOS
1 stop29h 28m
Multiple Airlines
Sat 5/99:29 am
BOS
- SAT
1 stop24h 26m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:54 pm
SAT
- BOS
2 stops28h 30m
Multiple Airlines
Sun 5/175:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:54 pm
SAT
- BOS
2 stops28h 30m
Multiple Airlines
Mon 5/185:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:26 pm
SAT
- BOS
1 stop29h 28m
Spirit Airlines
Sun 5/175:45 am
BOS
- SAT
1 stop11h 31m
Spirit Airlines
Deal found 4/13![Spirit Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:40 pm
SAT
- BOS
2 stops7h 50m
Southwest
Wed 5/207:20 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 4/15![Southwest logo]()
$364
This CheapOair deal was found by Cheapflights users on 4/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:26 pm
SAT
- BOS
1 stop29h 28m
Spirit Airlines
Mon 5/255:45 am
BOS
- SAT
1 stop11h 31m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$365
This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:26 pm
SAT
- BOS
2 stops27h 16m
Spirit Airlines
Mon 5/255:45 am
BOS
- SAT
1 stop11h 31m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 4/14. 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.
Fri 5/294:15 pm
SAT
- BOS
1 stop6h 14m
Delta
Fri 6/58:30 am
BOS
- SAT
Nonstop4h 40m
Delta
Deal found 4/14![Delta logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:26 pm
SAT
- BOS
2 stops30h 58m
Multiple Airlines
Mon 6/15:45 am
BOS
- SAT
1 stop11h 31m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:52 pm
SAT
- BOS
1 stop5h 48m
American Airlines
Thu 6/49:00 am
BOS
- SAT
1 stop6h 56m
American Airlines
Deal found 4/14![American Airlines logo]()
$359
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 April 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 April 17, 2026.
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:54 pm
SAT
- BOS
2 stops11h 50m
Frontier
Deal found 4/13![Frontier logo]()
$112
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:40 pm
SAT
- BOS
1 stop9h 09m
American Airlines
Deal found 4/16![American Airlines logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 6/97:51 pm
SAT
- BOS
2 stops28h 36m
Frontier
Deal found 4/12![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:54 pm
SAT
- BOS
2 stops28h 30m
Frontier
Deal found 4/13![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:26 pm
SAT
- BOS
1 stop29h 28m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:54 pm
SAT
- BOS
2 stops35h 50m
Frontier
Deal found 4/16![Frontier logo]()
$144
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:10 am
SAT
- BOS
1 stop8h 24m
American Airlines
Deal found 4/16![American Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:26 pm
SAT
- BOS
1 stop29h 28m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:54 pm
SAT
- BOS
2 stops28h 30m
Frontier
Deal found 4/13![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:04 pm
SAT
- BOS
1 stop27h 54m
Spirit Airlines
Deal found 4/14![Spirit Airlines logo]()
$153
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 April 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (CheapOair) |
One-way from | $112 (Trip.com) |
Popular in | March |
Cheapest in | August |
Average price | $497 |
Good round-trip deal | $437 or less |
Good one-way deal | $258 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 April 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 - BOS
SATBOS
San Antonio
Wed 6/17
1:20 pm-6:48 pm
Nonstop4h 28m
Boston Logan Intl
Mon 8/10
5:45 am-1:07 pm
1 stop8h 22m
$349
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 8/5
1:20 pm-6:47 pm
Nonstop4h 27m
Boston Logan Intl
Mon 8/10
6:55 am-1:07 pm
1 stop7h 12m
$349
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 6/12
4:50 pm-11:25 pm
1 stop5h 35m
Boston Logan Intl
Fri 6/19
5:35 am-10:15 am
1 stop5h 40m
$359
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 8/19
12:50 pm-7:45 pm
1 stop5h 55m
Boston Logan Intl
Sun 8/23
5:40 am-12:05 pm
1 stop7h 25m
$359
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 6/5
4:50 pm-11:25 pm
1 stop5h 35m
Boston Logan Intl
Wed 8/5
5:35 am-12:50 pm
2 stops8h 15m
$364
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Mon 6/15
3:45 pm-12:05 am
2 stops7h 20m
Boston Logan Intl
Thu 6/18
5:45 am-11:50 am
1 stop7h 05m
$364
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 8/5
1:30 pm-10:15 pm
2 stops7h 45m
Boston Logan Intl
Tue 8/11
5:25 am-11:00 am
1 stop6h 35m
$364
Quickest round-trip
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 5/28
1:06 pm-6:25 pm
Nonstop4h 19m
Boston Logan Intl
Sun 5/31
5:40 am-10:54 am
1 stop6h 14m
$369
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 7/8
6:10 am-3:00 pm
2 stops7h 50m
Boston Logan Intl
Wed 7/8
5:00 pm-11:55 pm
2 stops7h 55m
$369
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Sat 5/9
1:06 pm-6:25 pm
Nonstop4h 19m
Boston Logan Intl
Tue 5/19
4:30 pm-12:44 am
1 stop9h 14m
$379
Showing 1-10 of 21 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Boston. Price data was last updated on April 10, 2026.
The best time to book flights from San Antonio to Boston is 70 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, August is the cheapest month in which you can book a flight from San Antonio to Boston (average of $313). Flying from San Antonio to Boston in March is currently the most expensive (average of $517). 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 April 17, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 42% 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 April 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.
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 locationsMedford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Seabrook
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Waltham
Lowell
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Antonio to Boston
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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 April 17, 2026.
Complete your trip
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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 April 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 April 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$162 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$249 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$239 | Average$370 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$389 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$265 | Average$402 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$282 | Average$419 | FlexibilityNo cancel fee | On-time69% |