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$79+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 67 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 June 12, 2025.

Round-trip from

$239
(Delta)

One-way from

$79
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$360

Good round-trip deal

$259 or less

Good one-way deal

$223 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. 8% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 9/152:00 pmSAT - BOS
Nonstop4h 07mDelta
Tue 9/239:15 amBOS - SAT
Nonstop4h 47mDelta
Deal found 6/10$239
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:05 amSAT - BOS
1 stop7h 32mSpirit Airlines
Tue 7/226:15 amBOS - SAT
1 stop14h 07mSpirit Airlines
Deal found 6/11$240
This Southwest deal was found by Cheapflights users on 6/10. 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 8/302:05 pmSAT - BOS
1 stop5h 50mSouthwest
Mon 9/15:35 amBOS - SAT
1 stop6h 20mSouthwest
Deal found 6/10$279
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 8/2011:45 amSAT - BOS
2 stops7h 53mUnited Airlines
Sun 8/249:36 amBOS - SAT
1 stop6h 49mUnited Airlines
Deal found 6/12$305
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/126:25 amSAT - BOS
1 stop8h 28mAmerican Airlines
Mon 6/162:44 pmBOS - SAT
1 stop9h 19mAmerican Airlines
Deal found 6/10$389

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 June 12, 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

Wed 8/13

2:40 pm-8:00 pm

Nonstop4h 20m

Boston Logan Intl

Sat 8/16

9:20 am-12:45 pm

Nonstop4h 25m

$239

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 7/8

7:05 am-3:37 pm

1 stop7h 32m

Boston Logan Intl

Tue 7/22

6:15 am-7:22 pm

1 stop14h 07m

$240

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sat 8/30

2:05 pm-8:55 pm

1 stop5h 50m

Boston Logan Intl

Mon 9/1

5:35 am-10:55 am

1 stop6h 20m

$279

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 8/20

11:45 am-8:38 pm

2 stops7h 53m

Boston Logan Intl

Sun 8/24

9:36 am-3:25 pm

1 stop6h 49m

$305

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 7/1

7:05 am-3:37 pm

1 stop7h 32m

$79

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sat 7/19

12:13 pm-10:00 pm

1 stop8h 47m

$130

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 8/20

5:35 am-3:25 pm

1 stop8h 50m

$149

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sat 7/19

2:40 pm-8:02 pm

Nonstop4h 22m

$179

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sun 6/15

7:05 am-12:03 pm

2 stops27h 58m

$261

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sun 6/15

1:56 pm-8:40 am

2 stops17h 44m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 9, 2025.

The best time to book flights from San Antonio to Boston is 67 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 June is currently the most expensive (average of $306). 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 June 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 6% on flights from San Antonio to Boston by exploring options for tickets in the morning.

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 June 8, 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.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
To help decide which airline to fly from San Antonio to Boston, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,295 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • 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.

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

    Currently priced at $239, Delta will fly you from San Antonio to Boston and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Southwest - these airlines can fly you to your destination from $240 and $279, respectively. These flights start at 29% lower than the current average price 3 months from now.

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

    $79 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and Southwest, with prices starting from $130 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: EL AL (100%), KLM (73%), Delta (64%).

  • 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 $324, our data indicates the cheapest price to be $178. The most popular route (San Antonio - Boston Logan Intl), is priced around $175.

  • 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 $48 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 June is currently the most expensive (average of $306). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
Cambridge
Medford
Watertown
Warwick
Waltham
Framingham
Seabrook
Cranston
Randolph
Chestnut Hill
Lowell
Chelsea
Marlborough
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea

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Alternative routes for San Antonio to Boston

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$99Average$217FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$206Average$307FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$211Average$319FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$230Average$370FlexibilityNo cancel feeOn-time69%
DeltaCheapest$239Average$343FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$412FlexibilityNo cancel feeOn-time63%

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