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$100+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Boston Logan Intl are usually found in August or September, booked 63 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Mytrip)

One-way from

$100
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$398

Good round-trip deal

$319 or less

Good one-way deal

$208 or less
Provider with most accurate pricing for San Antonio-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Boston Logan Intl flights.
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From San Antonio to Boston Logan Intl
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One-way flight from San Antonio to Boston Logan Intl
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from San Antonio to Boston Logan Intl.
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Price to beat on a one-way flight from San Antonio to Boston Logan Intl.
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Find flight deals from San Antonio to Boston

Cheapest flights from San Antonio to Boston
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 October 20, 2025.

This Mytrip deal was found by Cheapflights users on 10/19. 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.
Wed 12/38:33 pmSAT - BOS
1 stop11h 43mSpirit Airlines
Tue 12/99:32 pmBOS - SAT
3 stops40h 28mSpirit Airlines
Deal found 10/19$298
This Delta deal was found by Cheapflights users on 10/17. 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.
Wed 12/32:15 pmSAT - BOS
Nonstop4h 03mDelta
Sun 12/79:20 amBOS - SAT
Nonstop4h 57mDelta
Deal found 10/17$299
This Mytrip deal was found by Cheapflights users on 10/19. 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 11/147:37 pmSAT - BOS
3 stops18h 23mSpirit Airlines
Sun 11/166:16 amBOS - SAT
1 stop13h 16mSpirit Airlines
Deal found 10/19$300
This Mytrip deal was found by Cheapflights users on 10/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/63:23 pmSAT - BOS
3 stops22h 37mSpirit Airlines
Mon 11/106:16 amBOS - SAT
1 stop13h 16mSpirit Airlines
Deal found 10/17$301
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:58 amSAT - BOS
2 stops21h 02mMultiple Airlines
Sat 11/225:45 pmBOS - SAT
1 stop26h 53mMultiple Airlines
Deal found 10/18$303
This Mytrip deal was found by Cheapflights users on 10/19. 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 11/1810:58 amSAT - BOS
3 stops26h 35mSpirit Airlines
Wed 12/39:54 pmBOS - SAT
3 stops26h 32mSpirit Airlines
Deal found 10/19$306
This Mytrip deal was found by Cheapflights users on 10/19. 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.
Wed 11/56:45 amSAT - BOS
3 stops31h 15mSpirit Airlines
Wed 11/126:26 pmBOS - SAT
3 stops21h 02mSpirit Airlines
Deal found 10/19$307
This Mytrip deal was found by Cheapflights users on 10/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:35 pmSAT - BOS
1 stop14h 51mSpirit Airlines
Tue 11/412:00 pmBOS - SAT
3 stops31h 32mSpirit Airlines
Deal found 10/18$308
This Delta deal was found by Cheapflights users on 10/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/182:00 pmSAT - BOS
Nonstop3h 59mDelta
Wed 12/39:00 amBOS - SAT
1 stop8h 04mDelta
Deal found 10/18$309
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/24:54 pmSAT - BOS
1 stop14h 34mMultiple Airlines
Thu 11/612:20 pmBOS - SAT
2 stops29h 20mMultiple Airlines
Deal found 10/18$310
This Southwest deal was found by Cheapflights users on 10/20. 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 12/205:30 pmSAT - BOS
1 stop5h 50mSouthwest
Tue 12/308:00 pmBOS - SAT
1 stop6h 25mSouthwest
Deal found 10/20$313
This United Airlines deal was found by Cheapflights users on 10/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:47 amSAT - BOS
1 stop6h 12mUnited Airlines
Mon 12/153:32 pmBOS - SAT
1 stop7h 00mUnited Airlines
Deal found 10/18$314

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 October 20, 2025.
Use the filters below to find and compare flights from San Antonio to Boston that are best for you.

Fly from

San Antonio

Fly to

Boston

Route

Depart

Return

Price

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 1/30

12:30 pm-5:32 pm

Nonstop4h 02m

Boston Logan Intl

Mon 2/2

11:46 am-3:46 pm

Nonstop5h 00m

$299

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sat 12/13

2:01 pm-7:04 pm

Nonstop4h 03m

Boston Logan Intl

Tue 12/16

9:20 am-1:17 pm

Nonstop4h 57m

$299

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 12/18

2:15 pm-7:18 pm

Nonstop4h 03m

Boston Logan Intl

Thu 1/8

11:46 am-3:46 pm

Nonstop5h 00m

$299

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 1/30

12:30 pm-5:32 pm

Nonstop4h 02m

Boston Logan Intl

Tue 2/3

11:46 am-3:46 pm

Nonstop5h 00m

$299

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 12/29

5:50 pm-12:45 am

1 stop5h 55m

Boston Logan Intl

Wed 12/31

12:20 pm-9:10 pm

1 stop9h 50m

$301

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 11/21

2:39 pm-11:47 pm

1 stop8h 08m

Boston Logan Intl

Sun 11/23

9:15 am-1:05 pm

Nonstop4h 50m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 12/3

2:15 pm-7:18 pm

Nonstop4h 03m

Boston Logan Intl

Sun 12/7

9:15 am-3:47 pm

1 stop7h 32m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 2/3

6:20 pm-12:59 am

1 stop5h 39m

Boston Logan Intl

Sat 2/7

11:46 am-3:46 pm

Nonstop5h 00m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 2/27

12:30 pm-5:32 pm

Nonstop4h 02m

Boston Logan Intl

Mon 3/2

4:40 pm-10:19 pm

1 stop6h 39m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 1/23

10:13 am-1:04 am

2 stops13h 51m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 18 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

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 October 17, 2025.

The best time to book flights from San Antonio to Boston is 63 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 $137). Flying from San Antonio to Boston in March is currently the most expensive (average of $237). 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 October 20, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 30% on flights from San Antonio to Boston by exploring options for tickets at noon.

What is the cheapest day to fly from San Antonio to Boston?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Boston. Price data was last updated on October 12, 2025.

Travelers seeking maximum savings on their San Antonio to Boston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 20, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,239 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,239 reviews
Southwest
8.0
Very good
4,239 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,978 reviews
Southwest
8.0
Very good
4,239 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,991 reviews
Southwest
8.0
Very good
4,239 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,024 reviews
Southwest
8.0
Very good
4,239 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,095 reviews
Southwest
8.0
Very good
4,239 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • What airports do I use to fly from San Antonio to Boston?

    You will need to book a flight from San Antonio to Boston Logan Intl if you want to fly from San Antonio to Boston. At least 5 different airlines have flights from San Antonio (SAT) to Logan Intl (BOS) on a regular basis. There are 2 flights to Boston from the San Antonio airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SAT to BOS to be around 3h 59m.

  • How popular is this San Antonio to Boston flight route?

    This flight path from San Antonio to Boston Logan Intl was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Antonio to Boston?

    Delta can get you from San Antonio to Boston in just under 4h 02m. Your travel time will be generally consistent. The distance between San Antonio and Boston is about 1761 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from San Antonio to Boston round-trip?

    Currently priced at $169, Spirit Airlines will fly you from San Antonio to Boston and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $239 and $258, respectively. These flights start at 53% lower than the current average price 3 months from now.

  • What are the most reliable airlines from San Antonio to Boston?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Antonio to Boston on time: EL AL (64%), Air France (37%), Delta (37%).

  • What are the cheapest flights from San Antonio to Boston?

    Looking for the cheapest flight from San Antonio to Boston? While on average our users pay $431, our data indicates the cheapest price to be $188. The most popular route (San Antonio - Boston Logan Intl), is priced around $192.

  • Where are the most common layover locations when flying from San Antonio to Boston?

    San Antonio to Boston flights have a layover in Charlotte most of the time.

  • What are some popular things to do or see while on a layover in Charlotte?

    Charlotte travelers tend to visit Carowind, Mint Museum Uptown, and NASCAR Hall of Fame more than anywhere else. Carowind, Mint Museum Uptown, and NASCAR Hall of Fame can be accessed by traveling approximately 8.2 mi, 5.4 mi, and 5.7 mi, respectively from Charlotte Douglas. Those landing in Charlotte looking to spend some time exploring during their layover can rent a car for about $46 per day.

  • Where are the least popular layover locations for San Antonio to Boston flights?

    Flights departing from San Antonio and landing in Boston layover in Dallas least frequently.

  • Can I find deals for flights from San Antonio to Boston that include hotel bookings?

    Yes. In addition to deals on San Antonio to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Boston.

  • Can I find deals for business class flights from San Antonio to Boston?

    Yes. Cheapflights offers flight deals from San Antonio to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $137). Flying from San Antonio to Boston in March is currently the most expensive (average of $237). 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.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

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Top 5 airlines flying from San Antonio to Boston

Discover the top 5 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$169Average$255FlexibilityNo cancel feeOn-time65%
DeltaCheapest$239Average$357FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$392FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$258Average$358FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$271Average$397FlexibilityNo cancel feeOn-time69%

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