$105+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Apr 17 — Apr 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 Friday
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 March 18, 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 March 18, 2026.
This CheapOair deal was found by Cheapflights users on 3/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Sat 4/45:49 pm
BOS
- SAT
1 stop16h 38m
Spirit Airlines
Deal found 3/15![Spirit Airlines logo]()
$295
This Mytrip deal was found by Cheapflights users on 3/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:22 pm
SAT
- BOS
3 stops33h 37m
Spirit Airlines
Sat 4/45:49 pm
BOS
- SAT
1 stop16h 38m
Spirit Airlines
Deal found 3/15![Spirit Airlines logo]()
$296
This CheapOair deal was found by Cheapflights users on 3/18. 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 4/110:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Mon 4/65:45 am
BOS
- SAT
1 stop28h 42m
Spirit Airlines
Deal found 3/18![Spirit Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Wed 4/810:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Mon 4/135:49 pm
BOS
- SAT
2 stops19h 38m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/81:22 pm
SAT
- BOS
2 stops25h 06m
Spirit Airlines
Sun 4/125:45 am
BOS
- SAT
1 stop28h 42m
Spirit Airlines
Deal found 3/15![Spirit Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 3/316:45 am
SAT
- BOS
2 stops17h 28m
Multiple Airlines
Fri 4/35:49 pm
BOS
- SAT
1 stop16h 38m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/21:22 pm
SAT
- BOS
2 stops35h 04m
Multiple Airlines
Sun 4/55:45 am
BOS
- SAT
1 stop28h 42m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$306
This CheapOair deal was found by Cheapflights users on 3/16. 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.
Thu 4/910:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Sun 4/125:45 am
BOS
- SAT
2 stops31h 42m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$309
This CheapOair deal was found by Cheapflights users on 3/18. 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.
Sat 4/186:00 am
SAT
- BOS
1 stop27h 15m
Spirit Airlines
Tue 4/218:16 pm
BOS
- SAT
1 stop28h 35m
Spirit Airlines
Deal found 3/18![Spirit Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Fri 4/1010:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Sun 4/125:45 am
BOS
- SAT
1 stop28h 42m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$313
This CheapOair deal was found by Cheapflights users on 3/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/21:22 pm
SAT
- BOS
2 stops33h 37m
Spirit Airlines
Mon 4/65:49 pm
BOS
- SAT
1 stop16h 38m
Spirit Airlines
Deal found 3/13![Spirit Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/306:00 am
SAT
- BOS
1 stop16h 57m
Multiple Airlines
Wed 5/68:44 am
BOS
- SAT
1 stop24h 31m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$315
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 March 18, 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 March 18, 2026.
This Delta deal was found by Cheapflights users on 3/16. 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 9/92:00 pm
SAT
- BOS
Nonstop4h 15m
Delta
Tue 9/159:15 am
BOS
- SAT
Nonstop4h 37m
Delta
Deal found 3/16![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:20 am
SAT
- BOS
2 stops7h 30m
Southwest
Sat 6/137:10 pm
BOS
- SAT
1 stop6h 00m
Southwest
Deal found 3/16![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 3/17. 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 4/176:33 pm
SAT
- BOS
1 stop6h 05m
Delta
Mon 4/203:00 pm
BOS
- SAT
1 stop8h 25m
Delta
Deal found 3/17![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:30 pm
SAT
- BOS
2 stops7h 45m
Southwest
Fri 8/75:00 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 3/14![Southwest logo]()
$384
This Delta deal was found by Cheapflights users on 3/13. 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.
Tue 5/121:05 pm
SAT
- BOS
Nonstop4h 19m
Delta
Sat 5/236:00 am
BOS
- SAT
1 stop7h 28m
Delta
Deal found 3/13![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 3/14. 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.
Wed 7/15:30 pm
SAT
- BOS
1 stop6h 33m
Delta
Fri 7/319:15 am
BOS
- SAT
Nonstop4h 37m
Delta
Deal found 3/14![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 3/14. 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 5/84:11 pm
SAT
- BOS
1 stop8h 17m
Delta
Sun 5/106:10 am
BOS
- SAT
1 stop11h 55m
Delta
Deal found 3/14![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:21 pm
SAT
- BOS
1 stop6h 07m
Delta
Mon 6/88:00 am
BOS
- SAT
1 stop8h 21m
Delta
Deal found 3/16![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 3/16. 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 6/102:00 pm
SAT
- BOS
Nonstop4h 15m
Delta
Sat 6/139:15 am
BOS
- SAT
Nonstop4h 37m
Delta
Deal found 3/16![Delta logo]()
$388
This Delta deal was found by Cheapflights users on 3/15. 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 8/62:00 pm
SAT
- BOS
Nonstop4h 15m
Delta
Mon 8/107:00 pm
BOS
- SAT
1 stop6h 15m
Delta
Deal found 3/15![Delta logo]()
$418
This Delta deal was found by Cheapflights users on 3/14. 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 4/1012:22 pm
SAT
- BOS
Nonstop4h 00m
Delta
Mon 4/206:50 pm
BOS
- SAT
1 stop6h 56m
Delta
Deal found 3/14![Delta logo]()
$419
Last-minute flights from San Antonio to BostonDiscover last-minute flight deals from San Antonio to Boston. Data last updated March 18, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Boston. Data last updated March 18, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 3/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:22 pm
SAT
- BOS
3 stops33h 37m
Spirit Airlines
Sat 4/45:49 pm
BOS
- SAT
1 stop16h 38m
Spirit Airlines
Deal found 3/15![Spirit Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 3/316:45 am
SAT
- BOS
2 stops17h 28m
Multiple Airlines
Fri 4/35:49 pm
BOS
- SAT
1 stop16h 38m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$305
This CheapOair deal was found by Cheapflights users on 3/18. 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 4/110:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Mon 4/65:45 am
BOS
- SAT
1 stop28h 42m
Spirit Airlines
Deal found 3/18![Spirit Airlines logo]()
$300
This CheapOair deal was found by Cheapflights users on 3/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Sat 4/45:49 pm
BOS
- SAT
1 stop16h 38m
Spirit Airlines
Deal found 3/15![Spirit Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/21:22 pm
SAT
- BOS
2 stops35h 04m
Multiple Airlines
Sun 4/55:45 am
BOS
- SAT
1 stop28h 42m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$306
This CheapOair deal was found by Cheapflights users on 3/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/21:22 pm
SAT
- BOS
2 stops33h 37m
Spirit Airlines
Mon 4/65:49 pm
BOS
- SAT
1 stop16h 38m
Spirit Airlines
Deal found 3/13![Spirit Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Wed 4/810:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Mon 4/135:49 pm
BOS
- SAT
2 stops19h 38m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$303
This CheapOair deal was found by Cheapflights users on 3/16. 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.
Thu 4/910:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Sun 4/125:45 am
BOS
- SAT
2 stops31h 42m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Fri 4/1010:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Sun 4/125:45 am
BOS
- SAT
1 stop28h 42m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$313
This CheapOair deal was found by Cheapflights users on 3/18. 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.
Sat 4/186:00 am
SAT
- BOS
1 stop27h 15m
Spirit Airlines
Tue 4/218:16 pm
BOS
- SAT
1 stop28h 35m
Spirit Airlines
Deal found 3/18![Spirit Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/306:00 am
SAT
- BOS
1 stop16h 57m
Multiple Airlines
Wed 5/68:44 am
BOS
- SAT
1 stop24h 31m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$315
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 March 18, 2026.
Search for one-way flight options from San Antonio to Boston. Find affordable one-way fares based on user searches. Data last updated March 18, 2026.
This Frontier deal was found by Cheapflights users on 3/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:00 pm
SAT
- BOS
1 stop6h 26m
Frontier
Deal found 3/16![Frontier logo]()
$105
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/201:51 pm
SAT
- BOS
1 stop19h 30m
Frontier
Deal found 3/15![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 3/17. 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.
Wed 4/810:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Deal found 3/17![Spirit Airlines logo]()
$113
This Trip.com deal was found by Cheapflights users on 3/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:45 am
SAT
- BOS
2 stops17h 28m
Frontier
Deal found 3/15![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 3/302:13 pm
SAT
- BOS
2 stops20h 28m
Frontier
Deal found 3/17![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 6/811:30 am
SAT
- BOS
2 stops22h 17m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/710:22 am
SAT
- BOS
1 stop28h 06m
Spirit Airlines
Deal found 3/17![Spirit Airlines logo]()
$131
This Super.com deal was found by Cheapflights users on 3/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/410:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Deal found 3/15![Spirit Airlines logo]()
$133
This Super.com deal was found by Cheapflights users on 3/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:22 pm
SAT
- BOS
1 stop7h 11m
Spirit Airlines
Deal found 3/16![Spirit Airlines logo]()
$134
This Super.com deal was found by Cheapflights users on 3/17. 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.
Thu 4/210:22 am
SAT
- BOS
1 stop12h 37m
Spirit Airlines
Deal found 3/17![Spirit Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Tue 4/141:22 pm
SAT
- BOS
1 stop19h 59m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$142
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 March 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $295 (CheapOair) |
One-way from | $105 (Frontier) |
Popular in | March |
Cheapest in | August |
Average price | $458 |
Good round-trip deal | $437 or less |
Good one-way deal | $353 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 March 18, 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
Quickest round-trip
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 9/9
2:00 pm-7:15 pm
Nonstop4h 15m
Boston Logan Intl
Tue 9/15
9:15 am-12:52 pm
Nonstop4h 37m
$359
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 4/17
6:33 pm-1:38 am
1 stop6h 05m
Boston Logan Intl
Mon 4/20
3:00 pm-10:25 pm
1 stop8h 25m
$359
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 5/12
1:05 pm-6:24 pm
Nonstop4h 19m
Boston Logan Intl
Sat 5/23
6:00 am-12:28 pm
1 stop7h 28m
$369
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 7/1
5:30 pm-1:03 am
1 stop6h 33m
Boston Logan Intl
Fri 7/31
9:15 am-12:52 pm
Nonstop4h 37m
$369
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 6/10
8:20 am-4:50 pm
2 stops7h 30m
Boston Logan Intl
Sat 6/13
7:10 pm-12:10 am
1 stop6h 00m
$374
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 5/8
4:11 pm-1:28 am
1 stop8h 17m
Boston Logan Intl
Sun 5/10
6:10 am-5:05 pm
1 stop11h 55m
$379
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 6/4
6:21 pm-1:28 am
1 stop6h 07m
Boston Logan Intl
Mon 6/8
8:00 am-3:21 pm
1 stop8h 21m
$379
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 8/4
1:30 pm-10:15 pm
2 stops7h 45m
Boston Logan Intl
Fri 8/7
5:00 am-10:35 am
1 stop6h 35m
$384
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 6/10
2:00 pm-7:15 pm
Nonstop4h 15m
Boston Logan Intl
Sat 6/13
9:15 am-12:52 pm
Nonstop4h 37m
$388
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 8/6
2:00 pm-7:15 pm
Nonstop4h 15m
Boston Logan Intl
Mon 8/10
7:00 pm-12:15 am
1 stop6h 15m
$418
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 March.
| 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 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
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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 March 13, 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, April is the cheapest month in which you can book a flight from San Antonio to Boston (average of $117). Flying from San Antonio to Boston in May is currently the most expensive (average of $185). 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 March 18, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 43% 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.
Nashville (BNA) – 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.
Detroit (DTW) is the most affordable 1-stop option, with an average round-trip price of $176.
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 March 18, 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.
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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
Seekonk
Brockton
Seabrook
Cranston
Chelsea
Smithfield
Lincoln
Warwick
Peabody
Waltham
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Browse thousands of different options on Cheapflights for your next trip
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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 March 18, 2026.
Complete your trip
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San Antonio and Boston flights
Browse other San Antonio and Boston flight options. Last updated on March 18, 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 March 18, 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 2,558,603 searches. Data last updated March 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$162 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$169 | Average$249 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$239 | Average$357 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$388 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$258 | Average$382 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$278 | Average$418 | FlexibilityNo cancel fee | On-time69% |