$115+ Cheap flights from Boston to San Antonio (BOS - SAT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAT
Nov 19 — Nov 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boston to San Antonio 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 Boston Logan Intl to San Antonio are usually found in January or August, booked 79 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from Boston to San Antonio
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to San AntonioExplore the most affordable flight options available from Boston to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
Explore the most affordable flight options available from Boston to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
This Delta deal was found by Cheapflights users on 10/18. 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.
Sun 12/2012:55 pm -
Nonstop4h 55m
Tue 1/52:00 pm -
Nonstop4h 06m
Deal found 10/18![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 10/16. 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.
Sat 12/510:15 am -
Nonstop4h 58m
Sat 12/123:10 pm -
Nonstop4h 11m
Deal found 10/16![Delta logo]()
$330
This Delta deal was found by Cheapflights users on 10/18. 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.
Sun 12/2012:55 pm -
Nonstop4h 55m
Fri 1/15:20 am -
1 stop5h 38m
Deal found 10/18![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/197:10 pm -
1 stop7h 00m
Tue 12/225:05 pm -
1 stop5h 20m
Deal found 10/15![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 10/16. 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.
Thu 12/315:10 am -
1 stop6h 25m
Thu 1/75:55 am -
1 stop5h 35m
Deal found 10/16![Southwest logo]()
$346
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:31 pm -
1 stop8h 26m
Sat 12/129:18 am -
1 stop5h 38m
Deal found 10/15![American Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Thu 11/199:43 am -
1 stop6h 55m
Sat 11/214:19 pm -
1 stop6h 06m
Deal found 10/18![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 10/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:10 pm -
1 stop6h 30m
Tue 12/156:45 am -
2 stops8h 40m
Deal found 10/15![Southwest logo]()
$354
This Trip.com deal was found by Cheapflights users on 10/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:25 am -
1 stop27h 07m
Mon 12/211:27 pm -
1 stop19h 03m
Deal found 10/18![Frontier logo]()
$355
Best flights from Boston to San AntonioDiscover carefully curated flight deals from Boston to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
Discover carefully curated flight deals from Boston to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
This Delta deal was found by Cheapflights users on 10/17. 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.
Tue 2/239:15 am -
Nonstop4h 53m
Sat 2/274:00 pm -
1 stop6h 34m
Deal found 10/17![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/105:30 am -
1 stop6h 20m
Sun 2/147:35 am -
1 stop5h 15m
Deal found 10/15![Southwest logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Sat 11/212:40 pm -
2 stops9h 11m
Thu 11/267:35 am -
1 stop5h 46m
Deal found 10/19![United Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 10/18. 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 2/101:55 pm -
1 stop9h 32m
Sun 2/1412:45 pm -
Nonstop4h 06m
Deal found 10/18![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/17. 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.
Tue 2/231:10 pm -
2 stops9h 15m
Sat 2/275:30 am -
2 stops9h 50m
Deal found 10/17![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 10/19. 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.
Sat 12/1912:55 pm -
Nonstop4h 55m
Sat 1/166:45 am -
1 stop6h 04m
Deal found 10/19![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 10/16. 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 11/205:30 am -
1 stop6h 20m
Sun 11/222:33 pm -
1 stop8h 11m
Deal found 10/16![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 10/18. 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.
Sat 12/1912:55 pm -
Nonstop4h 55m
Tue 1/56:30 am -
1 stop6h 35m
Deal found 10/18![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 10/17. 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 11/65:30 am -
1 stop8h 05m
Sun 11/86:00 am -
1 stop7h 10m
Deal found 10/17![Delta logo]()
$459
This Delta deal was found by Cheapflights users on 10/18. 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.
Sat 2/134:20 pm -
1 stop9h 08m
Sat 2/2012:45 pm -
Nonstop4h 06m
Deal found 10/18![Delta logo]()
$463
This Delta deal was found by Cheapflights users on 10/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:20 am -
Nonstop4h 32m
Tue 11/31:50 pm -
Nonstop4h 24m
Deal found 10/15![Delta logo]()
$489
Last-minute flights from Boston to San AntonioDiscover last-minute flight deals from Boston to San Antonio. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to San Antonio. Data last updated October 20, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/16. 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.
Sun 11/157:30 pm -
1 stop6h 30m
Wed 11/186:45 am -
2 stops8h 35m
Deal found 10/16![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 10/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:05 pm -
1 stop6h 40m
Thu 11/195:50 am -
1 stop5h 40m
Deal found 10/15![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Thu 11/199:43 am -
1 stop6h 55m
Sat 11/214:19 pm -
1 stop6h 06m
Deal found 10/18![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 10/19. 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 11/209:15 am -
Nonstop4h 51m
Mon 11/232:01 pm -
Nonstop4h 11m
Deal found 10/19![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 10/19. 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 11/209:15 am -
Nonstop4h 51m
Thu 11/267:40 am -
1 stop8h 24m
Deal found 10/19![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 10/19. 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 11/239:15 am -
Nonstop4h 51m
Wed 12/22:12 pm -
Nonstop4h 11m
Deal found 10/19![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 10/19. 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.
Mon 11/234:20 pm -
1 stop9h 05m
Wed 12/21:00 pm -
2 stops7h 45m
Deal found 10/19![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 10/19. 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.
Mon 11/308:05 pm -
1 stop6h 20m
Wed 12/27:25 am -
1 stop5h 20m
Deal found 10/19![Southwest logo]()
$368
One-way flights from Boston to San AntonioSearch for one-way flight options from Boston to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
Search for one-way flight options from Boston to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This Southwest deal was found by Cheapflights users on 10/19. 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.
Tue 12/85:55 pm -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$115
This Frontier deal was found by Cheapflights users on 10/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2111:57 am -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$122
This Southwest deal was found by Cheapflights users on 10/18. 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 11/115:00 am -
1 stop10h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Southwest logo]()
$133
This Southwest deal was found by Cheapflights users on 10/19. 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.
Sun 12/65:10 am -
1 stop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$143
This Southwest deal was found by Cheapflights users on 10/16. 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.
Sun 11/157:30 pm -
1 stop6h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Southwest logo]()
$175
This Southwest deal was found by Cheapflights users on 10/16. 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.
Tue 1/51:10 pm -
2 stops8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Southwest logo]()
$180
This Southwest deal was found by Cheapflights users on 10/19. 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 12/1910:20 pm -
2 stops14h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$186
This Southwest deal was found by Cheapflights users on 10/16. 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.
Fri 11/135:35 am -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Southwest logo]()
$193
Find flight deals from Boston to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Antonio (SAT). 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 October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $322 (Southwest) |
One-way from | $115 (Southwest) |
Popular in | December |
Cheapest in | January |
Average price | $485 |
Good round-trip deal | $399 or less |
Good one-way deal | $313 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to San Antonio 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 7,457,451 searches. Data last updated October 20, 2026.
Use the filters below to find and compare flights from Boston to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Mon 11/16
5:00 am-2:05 pm
1 stop10h 05m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Wed 2/10
5:15 am-10:55 am
1 stop6h 40m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Fri 11/13
5:35 am-11:15 am
1 stop6h 40m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$193
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Sun 4/18
5:35 am-12:55 pm
2 stops8h 20m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$210
Quickest round-trip
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Sat 1/23
9:15 am-1:08 pm
Nonstop4h 53m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$244
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Wed 2/10
9:15 am-1:08 pm
Nonstop4h 53m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$244
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Mon 11/23
5:55 pm-11:30 pm
1 stop6h 35m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$254
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Thu 10/29
6:35 pm-12:10 am
1 stop6h 35m
San Antonio
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$305
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Tue 2/23
9:15 am-1:08 pm
Nonstop4h 53m
San Antonio
Sat 2/27
4:00 pm-11:34 pm
1 stop6h 34m
$339
BostonSan Antonio
BOS Boston Logan Intl - SAT San Antonio
BOSSAT
Boston Logan Intl
Wed 2/10
1:55 pm-10:27 pm
1 stop9h 32m
San Antonio
Sun 2/14
12:45 pm-5:51 pm
Nonstop4h 06m
$339
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Boston to San Antonio
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 Boston to San Antonio in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub 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 Boston-San Antonio 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 Boston to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Boston with our price prediction graph.
BOS-SAT
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 Boston to San Antonio
How far ahead should I book a flight from Boston to San Antonio?
The best time to book flights from Boston to San Antonio is 78 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 Boston to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Boston to San Antonio (average of $361). Flying from Boston to San Antonio in December is currently the most expensive (average of $515). 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 BOS to SAT?
Find hourly flight availability from Boston to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2026.
When flying from Boston to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated October 20, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Boston to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Boston to San Antonio. 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 San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Boston
Popular flights
San Antonio flight routes
Alternative routes for Boston to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Antonio by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to San Antonio by cabin class
Find flights from Boston to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and San Antonio flights
Browse other Boston and San Antonio flight options. Last updated on October 20, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.
Top 6 airlines flying from Boston to San Antonio
Discover the top 6 airlines that operate flights from Boston to San Antonio. 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 7,457,451 searches. Data last updated October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$281 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$230 | Average$418 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$260 | Average$346 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$271 | Average$460 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$456 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$308 | Average$395 | FlexibilityNo cancel fee | On-time69% |