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$92+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Boston Logan Intl are usually found in September or August, booked 63 days in advance, depart on a Saturday or Thursday and return on a Wednesday

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 September 15, 2025.

Round-trip from

$259
(Kiwi.com)

One-way from

$92
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$299

Good round-trip deal

$309 or less

Good one-way deal

$198 or less
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 ($24 potential increase over avg. RT price).
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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 September 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:16 pmSAT - BOS
2 stops21h 40mSpirit Airlines
Tue 11/185:45 amBOS - SAT
1 stop10h 26mSpirit Airlines
Deal found 9/15$259
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 11/105:35 pmSAT - BOS
2 stops30h 05mMultiple Airlines
Sat 11/155:45 amBOS - SAT
1 stop10h 26mMultiple Airlines
Deal found 9/15$260
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/184:16 pmSAT - BOS
1 stop7h 24mSpirit Airlines
Tue 12/26:15 amBOS - SAT
1 stop17h 12mSpirit Airlines
Deal found 9/14$262
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/137:35 pmSAT - BOS
1 stop27h 24mSpirit Airlines
Mon 10/206:16 amBOS - SAT
1 stop13h 14mSpirit Airlines
Deal found 9/15$264
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:35 pmSAT - BOS
1 stop14h 41mSpirit Airlines
Mon 11/36:16 amBOS - SAT
1 stop13h 14mSpirit Airlines
Deal found 9/14$265
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/54:16 pmSAT - BOS
2 stops15h 44mMultiple Airlines
Mon 11/179:55 amBOS - SAT
1 stop7h 45mMultiple Airlines
Deal found 9/15$268
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 10/57:35 pmSAT - BOS
1 stop14h 51mSpirit Airlines
Sat 10/1812:31 pmBOS - SAT
1 stop30h 59mSpirit Airlines
Deal found 9/14$269
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:16 pmSAT - BOS
2 stops21h 40mSpirit Airlines
Wed 11/195:45 amBOS - SAT
1 stop10h 26mSpirit Airlines
Deal found 9/15$270
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:35 pmSAT - BOS
1 stop27h 24mSpirit Airlines
Sun 10/196:16 amBOS - SAT
1 stop13h 14mSpirit Airlines
Deal found 9/15$272
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:35 pmSAT - BOS
1 stop14h 51mSpirit Airlines
Sun 10/196:16 amBOS - SAT
1 stop13h 14mSpirit Airlines
Deal found 9/15$273
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/67:35 pmSAT - BOS
1 stop14h 51mSpirit Airlines
Wed 10/153:00 pmBOS - SAT
2 stops25h 50mSpirit Airlines
Deal found 9/14$275
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:16 pmSAT - BOS
1 stop7h 24mSpirit Airlines
Thu 11/206:00 amBOS - SAT
1 stop6h 47mSpirit Airlines
Deal found 9/15$277

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 September 15, 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 10/10

7:35 pm-11:59 pm

1 stop27h 24m

Boston Logan Intl

Sun 10/19

6:16 am-6:30 pm

1 stop13h 14m

$272

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 2/27

2:00 pm-7:02 pm

Nonstop4h 02m

Boston Logan Intl

Mon 3/2

9:15 am-1:15 pm

Nonstop5h 00m

$299

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 10/13

5:45 pm-10:52 pm

2 stops28h 07m

Boston Logan Intl

Thu 10/23

6:16 am-6:30 pm

1 stop13h 14m

$300

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 10/13

5:45 pm-10:52 pm

2 stops28h 07m

Boston Logan Intl

Fri 10/24

6:16 am-6:30 pm

1 stop13h 14m

$300

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Mon 10/13

7:35 pm-1:20 pm

2 stops16h 45m

Boston Logan Intl

Wed 10/22

3:00 pm-6:30 pm

1 stop28h 30m

$300

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Thu 10/9

7:35 pm-11:26 am

1 stop14h 51m

Boston Logan Intl

Sat 10/18

12:31 pm-6:30 pm

1 stop30h 59m

$303

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 10/21

2:20 pm-9:20 pm

1 stop6h 00m

Boston Logan Intl

Thu 10/23

5:15 am-10:35 am

1 stop6h 20m

$308

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 11/18

5:15 am-11:55 am

1 stop5h 40m

Boston Logan Intl

Wed 12/3

9:20 am-1:20 pm

Nonstop5h 00m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sat 11/8

1:50 pm-7:00 pm

Nonstop4h 10m

Boston Logan Intl

Wed 11/19

3:25 pm-9:02 pm

1 stop6h 37m

$309

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sat 11/8

1:50 pm-7:00 pm

Nonstop4h 10m

Boston Logan Intl

Mon 11/17

6:10 am-5:04 pm

1 stop11h 54m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 22 results
1
2
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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 September 12, 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, January is the cheapest month in which you can book a flight from San Antonio to Boston (average of $218). Flying from San Antonio to Boston in July is currently the most expensive (average of $311). 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 September 15, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 16% 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 September 14, 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 September 15, 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
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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 6 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?

    Spirit Airlines and Delta can get you from San Antonio to Boston in just under 4h 02m. Your travel time can differ by up to 23h 22m. 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 JetBlue and Delta - these airlines can fly you to your destination from $228 and $239, respectively. These flights start at 52% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Antonio to Boston one-way?

    $98 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $114 and $149, respectively.

  • 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: Air France (70%), Delta (64%), KLM (58%).

  • 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 $430, our data indicates the cheapest price to be $178. The most popular route (San Antonio - Boston Logan Intl), is priced around $193.

  • 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 $44 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, January is the cheapest month in which you can book a flight from San Antonio to Boston (average of $218). Flying from San Antonio to Boston in July is currently the most expensive (average of $311). 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
Chelsea
Warwick
Peabody
Quincy
York Beach
Swansea
Waltham
Saugus
Burlington

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$169Average$274FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$228Average$411FlexibilityNo cancel feeOn-time62%
DeltaCheapest$239Average$357FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$257Average$390FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$258Average$358FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$402FlexibilityNo cancel feeOn-time69%

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