$67+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOS
Jan 29 — Feb 51
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Antonio to Boston Logan Intl are usually found in August or September, booked 70 days in advance, depart on a Saturday or Thursday and return on a Friday
Cheap flight deals from San Antonio to Boston
Cheapest flights from San Antonio to BostonExplore 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 December 30, 2025.
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 December 30, 2025.
This American Airlines deal was found by Cheapflights users on 12/28. 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.
Wed 12/318:43 amSAT - BOS
1 stop11h 28mAmerican Airlines
Wed 1/1411:00 amBOS - SAT
1 stop10h 25mAmerican Airlines
Deal found 12/28![American Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 12/28. 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 12/317:05 amSAT - BOS
1 stop10h 43mUnited Airlines
Wed 1/149:30 amBOS - SAT
2 stops14h 27mUnited Airlines
Deal found 12/28![United Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/3112:25 pmSAT - BOS
1 stop10h 29mUnited Airlines
Thu 1/19:30 amBOS - SAT
1 stop11h 54mUnited Airlines
Deal found 12/29![United Airlines logo]()
$613
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Wed 12/318:43 amSAT - BOS
1 stop11h 28mAmerican Airlines
Sat 1/39:30 amBOS - SAT
1 stop12h 00mAmerican Airlines
Deal found 12/29![American Airlines logo]()
$695
This Super.com deal was found by Cheapflights users on 12/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:39 pmSAT - BOS
1 stop8h 18mSpirit Airlines
Thu 1/111:55 amBOS - SAT
1 stop12h 31mSpirit Airlines
Deal found 12/29![Spirit Airlines logo]()
$700
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 12/315:56 pmSAT - BOS
1 stop15h 12mFrontier
Sun 1/411:03 amBOS - SAT
1 stop30h 58mFrontier
Deal found 12/29![Frontier logo]()
$703
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 12/315:56 pmSAT - BOS
1 stop15h 12mMultiple Airlines
Sat 1/311:37 amBOS - SAT
2 stops19h 00mMultiple Airlines
Deal found 12/29![Multiple Airlines logo]()
$711
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 12/315:56 pmSAT - BOS
1 stop15h 12mMultiple Airlines
Sun 1/411:03 amBOS - SAT
2 stops19h 34mMultiple Airlines
Deal found 12/29![Multiple Airlines logo]()
$734
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 12/3112:45 pmSAT - BOS
2 stops20h 23mMultiple Airlines
Thu 1/112:29 pmBOS - SAT
1 stop24h 21mMultiple Airlines
Deal found 12/29![Multiple Airlines logo]()
$735
This Delta deal was found by Cheapflights users on 12/28. 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 12/313:20 pmSAT - BOS
Nonstop4h 07mDelta
Wed 1/1411:46 amBOS - SAT
Nonstop4h 59mDelta
Deal found 12/28![Delta logo]()
$744
Find 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 December 30, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $156 (Expedia) |
One-way from | $67 (Expedia) |
Popular in | December |
Cheapest in | August |
Average price | $479 |
Good round-trip deal | $348 or less |
Good one-way deal | $258 or less |
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 December 30, 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 1/21
6:30 am-11:19 pm
1 stop15h 49m
Boston Logan Intl
Sun 1/25
6:00 am-9:40 am
2 stops28h 40m
$188
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 1/21
6:30 am-11:19 pm
1 stop15h 49m
Boston Logan Intl
Sun 1/25
5:27 pm-9:40 am
1 stop17h 13m
$195
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Wed 4/29
1:42 pm-6:53 pm
Nonstop4h 11m
Boston Logan Intl
Tue 5/12
9:15 am-12:52 pm
Nonstop4h 37m
$299
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 5/12
2:00 pm-7:15 pm
Nonstop4h 15m
Boston Logan Intl
Sat 5/23
9:15 am-12:52 pm
Nonstop4h 37m
$299
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 5/5
8:00 am-5:39 pm
1 stop8h 39m
Boston Logan Intl
Tue 5/12
9:15 am-12:52 pm
Nonstop4h 37m
$309
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Thu 3/19
6:13 am-2:38 pm
1 stop7h 25m
Boston Logan Intl
Thu 3/26
10:45 am-2:31 pm
Nonstop4h 46m
$309
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 6/16
5:30 pm-1:03 am
1 stop6h 33m
Boston Logan Intl
Wed 6/24
9:15 am-12:52 pm
Nonstop4h 37m
$309
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Mon 6/15
2:00 pm-11:52 pm
1 stop8h 52m
Boston Logan Intl
Tue 6/23
9:15 am-12:52 pm
Nonstop4h 37m
$309
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Fri 1/30
12:25 pm-5:19 pm
Nonstop3h 54m
Boston Logan Intl
Sun 2/1
11:46 am-3:45 pm
Nonstop4h 59m
$319
San AntonioBoston
SAT - BOS
SATBOS
San Antonio
Tue 1/27
6:30 am-2:38 pm
1 stop7h 08m
$89
Showing 1-10 of 18 results
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 December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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
Prices
More
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 December 26, 2025.
The best time to book flights from San Antonio to Boston is 70 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 $227). 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 December 30, 2025.
Unlike in the evening, when flights are generally more expensive, you can save up to 32% on flights from San Antonio to Boston by exploring options for tickets at noon.
What’s the top layover airport for flights from San Antonio to Boston?
Share of 1-stop round-trip flights from San Antonio to Boston chosen by Cheapflights users in the past 12 months, using the same layover each way.
Nashville (BNA) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Antonio to Boston on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to Boston?
Average round-trip fare for 1-stop flights from San Antonio to Boston, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Detroit (DTW) is the most affordable 1-stop option, with an average round-trip price of $176.
What’s the fastest layover option from San Antonio to Boston?
Shortest average travel time for 1-stop one-way flights from San Antonio to Boston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Nashville (BNA) have the shortest average one-way travel time for 1-stop routes: 5h 30m.
Which airport typically offers the quickest layover for flights from San Antonio to Boston?
Average layover duration for 1-stop one-way flights from San Antonio to Boston, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Nashville (BNA) offer the fastest connection on this route, with an average layover time of 0h 45m.
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 December 30, 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.
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsCambridge
Medford
Hampton Beach
Watertown
Seekonk
Brockton
Seabrook
Cranston
Lincoln
Lowell
Smithfield
Peabody
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Antonio to Boston
See prices for flight routes from nearby airports that may be better suited for you.
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 December 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$169 | Average$249 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$239 | Average$344 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$392 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$258 | Average$364 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$278 | Average$413 | FlexibilityNo cancel fee | On-time69% |