$88+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Aug 11 — Aug 181
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
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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 August, booked 61 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from San Antonio to Boston
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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 July 12, 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 12, 2026.
This Southwest deal was found by Cheapflights users on 7/7. 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 9/105:35 am
SAT
- BOS
2 stops7h 55m
Southwest
Tue 9/157:30 am
BOS
- SAT
2 stops11h 25m
Southwest
Deal found 7/7![Southwest logo]()
$263
This Southwest deal was found by Cheapflights users on 7/11. 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 8/105:35 am
SAT
- BOS
2 stops9h 10m
Southwest
Mon 8/175:00 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/11![Southwest logo]()
$264
This Southwest deal was found by Cheapflights users on 7/8. 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 9/73:30 pm
SAT
- BOS
1 stop6h 00m
Southwest
Thu 9/105:00 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/8![Southwest logo]()
$265
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:00 pm
SAT
- BOS
2 stops8h 10m
Southwest
Sat 9/265:40 am
BOS
- SAT
1 stop9h 55m
Southwest
Deal found 7/7![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:55 pm
SAT
- BOS
1 stop6h 10m
Southwest
Sun 10/185:25 am
BOS
- SAT
1 stop6h 10m
Southwest
Deal found 7/9![Southwest logo]()
$268
This Delta deal was found by Cheapflights users on 7/10. 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 8/71:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Fri 8/149:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/10![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:50 am
SAT
- BOS
2 stops7h 15m
Southwest
Thu 10/225:15 am
BOS
- SAT
1 stop12h 05m
Southwest
Deal found 7/11![Southwest logo]()
$270
This Southwest deal was found by Cheapflights users on 7/8. 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 9/73:30 pm
SAT
- BOS
1 stop6h 00m
Southwest
Sat 9/125:00 am
BOS
- SAT
2 stops7h 45m
Southwest
Deal found 7/8![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:00 pm
SAT
- BOS
2 stops8h 10m
Southwest
Tue 9/221:05 pm
BOS
- SAT
2 stops8h 25m
Southwest
Deal found 7/10![Southwest logo]()
$273
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:00 am
SAT
- BOS
1 stop7h 22m
United Airlines
Sun 8/236:01 am
BOS
- SAT
1 stop6h 51m
United Airlines
Deal found 7/12![United Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 7/7. 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 9/2612:20 pm
SAT
- BOS
2 stops8h 20m
Southwest
Tue 9/292:45 pm
BOS
- SAT
2 stops7h 55m
Southwest
Deal found 7/7![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 7/8. 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 10/15:00 pm
SAT
- BOS
1 stop5h 30m
Southwest
Sun 10/45:25 am
BOS
- SAT
1 stop6h 10m
Southwest
Deal found 7/8![Southwest logo]()
$277
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 12, 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 12, 2026.
This Southwest deal was found by Cheapflights users on 7/12. 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.
Wed 9/29:20 am
SAT
- BOS
2 stops8h 15m
Southwest
Wed 9/95:25 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/12![Southwest logo]()
$264
This Delta deal was found by Cheapflights users on 7/9. 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 8/512:37 pm
SAT
- BOS
1 stop9h 06m
Delta
Tue 8/119:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/9![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:30 am
SAT
- BOS
2 stops12h 58m
United Airlines
Wed 8/129:00 am
BOS
- SAT
1 stop8h 31m
United Airlines
Deal found 7/9![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 7/8. 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 9/73:30 pm
SAT
- BOS
1 stop6h 00m
Southwest
Sat 9/125:00 am
BOS
- SAT
2 stops7h 45m
Southwest
Deal found 7/8![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 7/8. 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 9/75:35 am
SAT
- BOS
2 stops9h 10m
Southwest
Thu 9/102:15 pm
BOS
- SAT
2 stops9h 40m
Southwest
Deal found 7/8![Southwest logo]()
$296
This Delta deal was found by Cheapflights users on 7/10. 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 8/2011:29 am
SAT
- BOS
1 stop7h 29m
Delta
Mon 8/249:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/10![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
SAT
- BOS
2 stops9h 52m
United Airlines
Sun 8/306:01 am
BOS
- SAT
1 stop6h 51m
United Airlines
Deal found 7/9![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 7/7. 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 12/46:50 am
SAT
- BOS
2 stops8h 00m
Southwest
Fri 12/112:25 pm
BOS
- SAT
1 stop9h 25m
Southwest
Deal found 7/7![Southwest logo]()
$303
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:00 pm
SAT
- BOS
2 stops9h 59m
United Airlines
Sun 8/305:45 am
BOS
- SAT
2 stops11h 46m
United Airlines
Deal found 7/7![United Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:55 pm
SAT
- BOS
1 stop6h 10m
Southwest
Sun 11/15:35 am
BOS
- SAT
1 stop6h 40m
Southwest
Deal found 7/10![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 7/12. 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 10/225:25 am
SAT
- BOS
2 stops7h 35m
Southwest
Sun 10/255:25 am
BOS
- SAT
1 stop6h 10m
Southwest
Deal found 7/12![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 7/7. 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 8/15:50 am
SAT
- BOS
2 stops8h 55m
Southwest
Mon 8/319:40 am
BOS
- SAT
2 stops8h 30m
Southwest
Deal found 7/7![Southwest logo]()
$375
Last-minute flights from San Antonio to BostonDiscover last-minute flight deals from San Antonio to Boston. Data last updated July 12, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Boston. Data last updated July 12, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/8. 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
Wed 8/55:25 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/8![Southwest logo]()
$265
This Southwest deal was found by Cheapflights users on 7/7. 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
Mon 8/315:50 am
BOS
- SAT
2 stops9h 25m
Southwest
Deal found 7/7![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 7/10. 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 8/46:40 am
SAT
- BOS
1 stop6h 05m
Southwest
Thu 8/65:00 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/10![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 7/9. 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 8/512:37 pm
SAT
- BOS
1 stop9h 06m
Delta
Tue 8/119:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/9![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 7/10. 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 8/71:20 pm
SAT
- BOS
Nonstop4h 27m
Delta
Fri 8/149:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/10![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 7/10. 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 8/89:45 am
SAT
- BOS
2 stops8h 10m
Southwest
Sat 8/155:50 am
BOS
- SAT
1 stop11h 55m
Southwest
Deal found 7/10![Southwest logo]()
$288
This Southwest deal was found by Cheapflights users on 7/11. 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 8/105:35 am
SAT
- BOS
2 stops9h 10m
Southwest
Mon 8/175:00 am
BOS
- SAT
1 stop6h 35m
Southwest
Deal found 7/11![Southwest logo]()
$264
This Delta deal was found by Cheapflights users on 7/8. 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
Mon 8/249:01 am
BOS
- SAT
Nonstop4h 24m
Delta
Deal found 7/8![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:00 am
SAT
- BOS
1 stop7h 22m
United Airlines
Sun 8/236:01 am
BOS
- SAT
1 stop6h 51m
United Airlines
Deal found 7/12![United Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 7/12. 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 8/202:20 pm
SAT
- BOS
1 stop9h 10m
Southwest
Mon 8/245:50 am
BOS
- SAT
2 stops8h 00m
Southwest
Deal found 7/12![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 7/7. 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 8/229:45 am
SAT
- BOS
2 stops8h 10m
Southwest
Sat 8/298:10 am
BOS
- SAT
2 stops8h 50m
Southwest
Deal found 7/7![Southwest logo]()
$296
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 12, 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 12, 2026.
This Southwest deal was found by Cheapflights users on 7/8. 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 8/105:00 am
SAT
- BOS
1 stop5h 40m
Southwest
Deal found 7/8![Southwest logo]()
$88
This Southwest deal was found by Cheapflights users on 7/11. 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 8/111:30 pm
SAT
- BOS
2 stops7h 45m
Southwest
Deal found 7/11![Southwest logo]()
$93
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:10 am
SAT
- BOS
1 stop5h 35m
Southwest
Deal found 7/8![Southwest logo]()
$106
This Southwest deal was found by Cheapflights users on 7/10. 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
Deal found 7/10![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:50 am
SAT
- BOS
2 stops9h 20m
Southwest
Deal found 7/7![Southwest logo]()
$123
This Super.com deal was found by Cheapflights users on 7/11. 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 8/14:26 pm
SAT
- BOS
1 stop15h 43m
Frontier
Deal found 7/11![Frontier logo]()
$124
This Southwest deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:35 am
SAT
- BOS
2 stops8h 20m
Southwest
Deal found 7/9![Southwest logo]()
$129
This Southwest deal was found by Cheapflights users on 7/11. 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.
Sun 8/96:20 am
SAT
- BOS
1 stop5h 55m
Southwest
Deal found 7/11![Southwest logo]()
$130
This CheapOair deal was found by Cheapflights users on 7/9. 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 8/79:51 am
SAT
- BOS
1 stop22h 18m
Frontier
Deal found 7/9![Frontier logo]()
$131
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 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $263 (Southwest) |
One-way from | $88 (Southwest) |
Popular in | March |
Cheapest in | September |
Average price | $417 |
Good round-trip deal | $265 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 12, 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 9/2
9:20 am-6:35 pm
2 stops8h 15m
Boston Logan Intl
Wed 9/9
5:25 am-11:00 am
1 stop6h 35m
$264
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Mon 9/7
3:30 pm-10:30 pm
1 stop6h 00m
Boston Logan Intl
Sat 9/12
5:00 am-11:45 am
2 stops7h 45m
$271
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 8/5
12:37 pm-10:43 pm
1 stop9h 06m
Boston Logan Intl
Tue 8/11
9:01 am-12:25 pm
Nonstop4h 24m
$279
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Mon 9/7
5:35 am-3:45 pm
2 stops9h 10m
Boston Logan Intl
Thu 9/10
2:15 pm-10:55 pm
2 stops9h 40m
$296
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 12/4
6:50 am-3:50 pm
2 stops8h 00m
Boston Logan Intl
Fri 12/11
2:25 pm-10:50 pm
1 stop9h 25m
$303
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 10/30
4:55 pm-12:05 am
1 stop6h 10m
Boston Logan Intl
Sun 11/1
5:35 am-11:15 am
1 stop6h 40m
$317
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 10/22
5:25 am-2:00 pm
2 stops7h 35m
Boston Logan Intl
Sun 10/25
5:25 am-10:35 am
1 stop6h 10m
$324
Quickest round-trip
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 8/20
11:29 am-7:58 pm
1 stop7h 29m
Boston Logan Intl
Mon 8/24
9:01 am-12:25 pm
Nonstop4h 24m
$358
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Sat 8/8
5:30 am-7:28 pm
2 stops12h 58m
Boston Logan Intl
Wed 8/12
9:00 am-4:31 pm
1 stop8h 31m
$364
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 8/27
7:00 am-5:52 pm
2 stops9h 52m
Boston Logan Intl
Sun 8/30
6:01 am-11:52 am
1 stop6h 51m
$364
Showing 1-10 of 24 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 $339). 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 12, 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 12, 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
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Entertainment
7.5
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
Brockton
Hampton Beach
Seekonk
Cranston
Warwick
Dedham
Peabody
Randolph
Auburn
Fitchburg
York Beach
Chelsea
Londonderry
Swansea
North Falmouth
Smithfield
Braintree
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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 July 12, 2026.
Complete your trip
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San Antonio and Boston flights
Browse other San Antonio and Boston flight options. Last updated on July 12, 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 12, 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 July 12, 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$403 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$251 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$275 | Average$418 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$419 | FlexibilityNo cancel fee | On-time69% |