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$69+ 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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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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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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(Delta)

One-way from

$69
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$419

Good round-trip deal

$359 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. 7% potential increase in price ($28 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 November 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 November 6, 2025.

This Delta deal was found by Cheapflights users on 11/5. 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 12/124:52 pmSAT - BOS
1 stop7h 35mDelta
Mon 12/159:20 amBOS - SAT
Nonstop4h 57mDelta
Deal found 11/5$309
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/187:37 pmSAT - BOS
3 stops20h 54mSpirit Airlines
Wed 12/39:54 pmBOS - SAT
2 stops17h 21mSpirit Airlines
Deal found 11/6$310
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 11/197:37 pmSAT - BOS
2 stops24h 12mSpirit Airlines
Tue 12/25:45 amBOS - SAT
1 stop13h 47mSpirit Airlines
Deal found 11/6$311
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/205:10 amSAT - BOS
2 stops27h 58mMultiple Airlines
Fri 1/26:00 amBOS - SAT
1 stop12h 01mMultiple Airlines
Deal found 11/5$312
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/217:37 pmSAT - BOS
2 stops24h 12mSpirit Airlines
Sun 11/239:54 pmBOS - SAT
2 stops21h 38mSpirit Airlines
Deal found 11/6$313
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 12/195:56 pmSAT - BOS
1 stop6h 18mMultiple Airlines
Tue 12/2312:29 pmBOS - SAT
1 stop30h 47mMultiple Airlines
Deal found 11/6$315
This Frontier deal was found by Cheapflights users on 11/6. 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 12/225:56 pmSAT - BOS
1 stop6h 23mFrontier
Fri 1/210:57 amBOS - SAT
1 stop7h 04mFrontier
Deal found 11/6$316
This Mytrip deal was found by Cheapflights users on 11/5. 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 11/217:37 pmSAT - BOS
2 stops24h 12mSpirit Airlines
Mon 11/2411:04 pmBOS - SAT
3 stops20h 28mSpirit Airlines
Deal found 11/5$318
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/187:37 pmSAT - BOS
1 stop27h 22mSpirit Airlines
Fri 11/219:54 pmBOS - SAT
2 stops19h 05mSpirit Airlines
Deal found 11/5$320
This Mytrip deal was found by Cheapflights users on 11/6. 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 12/111:55 pmSAT - BOS
1 stop9h 01mSpirit Airlines
Sat 12/135:45 amBOS - SAT
3 stops32h 15mSpirit Airlines
Deal found 11/6$322

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 November 6, 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

Thu 12/11

2:15 pm-7:18 pm

Nonstop4h 03m

Boston Logan Intl

Sun 12/14

5:29 am-10:56 am

1 stop6h 27m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 3/23

2:10 pm-9:46 pm

1 stop6h 36m

Boston Logan Intl

Wed 3/25

5:00 pm-10:33 pm

1 stop6h 33m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 2/18

8:00 am-5:32 pm

1 stop8h 32m

Boston Logan Intl

Sun 2/22

11:46 am-3:47 pm

Nonstop5h 01m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 1/15

12:15 pm-6:57 pm

1 stop5h 42m

Boston Logan Intl

Sun 1/18

6:00 am-12:24 pm

1 stop7h 24m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 1/16

6:29 pm-6:05 am

1 stop10h 36m

Boston Logan Intl

Mon 1/19

11:46 am-3:47 pm

Nonstop5h 01m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 12/31

3:20 pm-8:27 pm

Nonstop4h 07m

Boston Logan Intl

Sun 1/4

4:52 pm-10:49 pm

1 stop6h 57m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 1/16

2:06 pm-11:49 pm

2 stops8h 43m

Boston Logan Intl

Mon 1/19

5:45 am-11:19 am

1 stop6h 34m

$314

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 4/30

6:30 am-5:19 pm

1 stop9h 49m

Boston Logan Intl

Mon 5/4

4:20 pm-10:21 pm

1 stop7h 01m

$319

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 12/11

1:55 pm-11:56 pm

1 stop9h 01m

Boston Logan Intl

Sat 12/13

5:45 am-1:00 pm

3 stops32h 15m

$322

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 12/5

1:55 pm-7:06 pm

3 stops28h 11m

Boston Logan Intl

Sun 12/7

5:45 am-11:26 pm

1 stop18h 41m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 22 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Boston flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 31, 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 November 6, 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 November 2, 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 November 6, 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
4,241 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

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
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

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
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

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
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

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
8,122 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

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 is 1 flight 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 54m.

  • 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?

    United Airlines and Delta can get you from San Antonio to Boston in just under 6h 36m. Your travel time can differ by up to 1h 56m. The distance between San Antonio and Boston is about 1761 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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: KLM (59%), EL AL (56%), Air France (30%).

  • 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 $441, our data indicates the cheapest price to be $126. The most popular route (San Antonio - Boston Logan Intl), is priced around $187.

  • 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, NASCAR Hall of Fame, and Mint Museum Uptown more than anywhere else. Carowind, NASCAR Hall of Fame, and Mint Museum Uptown can be accessed by traveling approximately 8.2 mi, 5.7 mi, and 5.4 mi, respectively from Charlotte Douglas. Those landing in Charlotte looking to spend some time exploring during their layover can rent a car for about $49 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Antonio to Boston

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$169Average$249FlexibilityNo cancel feeOn-time65%
DeltaCheapest$239Average$352FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$397FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$258Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$407FlexibilityNo cancel feeOn-time69%

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