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$80+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Jul 19 — Jul 261
Sat 7/19
Sat 7/26
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 67 days in advance, depart on a Saturday or Thursday and return on a Friday

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 July 14, 2025.

Round-trip from

$239
(Delta)

One-way from

$80
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$329

Good round-trip deal

$279 or less

Good one-way deal

$178 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. 7% potential increase in price ($26 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 July 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 July 14, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:40 pmSAT - BOS
Nonstop4h 20mDelta
Mon 8/259:20 amBOS - SAT
Nonstop4h 25mDelta
Deal found 7/12$239
This Cheapflightsfares deal was found by Cheapflights users on 7/13. 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.
Sun 8/2412:39 pmSAT - BOS
1 stop8h 55mSpirit Airlines
Sat 8/306:05 amBOS - SAT
1 stop10h 39mSpirit Airlines
Deal found 7/13$240
This Frontier deal was found by Cheapflights users on 7/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:35 pmSAT - BOS
1 stop13h 08mFrontier
Mon 9/1510:53 amBOS - SAT
1 stop6h 37mFrontier
Deal found 7/14$247
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/135:35 amSAT - BOS
1 stop5h 40mSouthwest
Wed 8/2012:40 pmBOS - SAT
1 stop8h 30mSouthwest
Deal found 7/14$259
This FlightHub deal was found by Cheapflights users on 7/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/124:20 pmSAT - BOS
1 stop15h 13mMultiple Airlines
Thu 10/166:10 amBOS - SAT
1 stop12h 08mMultiple Airlines
Deal found 7/13$278

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 14, 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 8/22

2:40 pm-8:00 pm

Nonstop4h 20m

Boston Logan Intl

Mon 8/25

9:20 am-12:45 pm

Nonstop4h 25m

$239

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sun 8/24

12:39 pm-10:34 pm

1 stop8h 55m

Boston Logan Intl

Sat 8/30

6:05 am-3:44 pm

1 stop10h 39m

$240

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 9/12

5:35 pm-7:43 am

1 stop13h 08m

Boston Logan Intl

Mon 9/15

10:53 am-4:30 pm

1 stop6h 37m

$247

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Wed 8/13

5:35 am-12:15 pm

1 stop5h 40m

Boston Logan Intl

Wed 8/20

12:40 pm-8:10 pm

1 stop8h 30m

$259

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sun 10/12

4:20 pm-8:33 am

1 stop15h 13m

Boston Logan Intl

Thu 10/16

6:10 am-5:18 pm

1 stop12h 08m

$278

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 8/5

7:10 am-7:34 pm

1 stop11h 24m

$80

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Sun 8/10

4:20 pm-11:00 pm

1 stop5h 40m

$130

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 8/19

5:30 am-3:14 pm

2 stops8h 44m

$135

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Fri 7/25

10:16 am-8:35 am

1 stop21h 19m

$151

San AntonioBoston

SAT - BOS

SATBOS

San Antonio

Tue 9/9

2:40 pm-8:01 pm

Nonstop4h 21m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

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 July 11, 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 July is currently the most expensive (average of $307). 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 14, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 5% on flights from San Antonio to Boston by exploring options for tickets in the afternoon.

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 July 13, 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.

Weekly flight availability from San Antonio to Boston

Explore weekly flight availability from San Antonio to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 14, 2025.

The most flights from SAT to BOS are scheduled on a Saturday (3 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

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 14, 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

Entertainment

7.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Food

7.0

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

Entertainment

7.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Food

7.0

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
7,956 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Food

7.0

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
8,858 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Food

7.0

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Food

7.0

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
8,043 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Food

7.0

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.

  • 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 4h 06m.

  • 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 Frontier - these airlines can fly you to your destination from $240 and $247, respectively. These flights start at 30% lower than the current average price 3 months from now.

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

    $80 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 Southwest and United Airlines, with prices starting from $130 and $135, 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 (62%), KLM (59%), Delta (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 $1,028, our data indicates the cheapest price to be $178. The most popular route (San Antonio - Boston Logan Intl), is priced around $208.

  • 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 $43 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 $307). 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
Watertown
Warwick
Seabrook
Waltham
Framingham
Lowell
Smithfield
Cranston
Randolph
Chestnut Hill
Brockton
York Beach
Chelsea
Saco
Burlington
Hampton Beach
Swansea
Lincoln

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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 July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$218FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$206Average$302FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$222Average$342FlexibilityNo cancel feeOn-time71%
DeltaCheapest$239Average$344FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$379FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$258Average$393FlexibilityNo cancel feeOn-time63%

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