BOS - SAT

$124 Find Cheap Flights from Boston to San Antonio - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to San Antonio departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$306
Typical prices: $319-$509
Southwest
Tue 8/4Fri 8/7
BOS - SAT • 1 stop
Cheapest non-stop
$318
Typical prices: $319-$509
Delta
Fri 8/7Mon 8/10
BOS - SAT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue adds free Wi-Fi and Even More Space with up to 7 inches extra legroom.
Delta Comfort Plus adds up to 3 inches extra legroom and free Wi-Fi for SkyMiles.
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Expert advice
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Top airlines
Cheapest • from $306 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
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Nonstop flights
You can fly direct with Delta. Average duration is 4h 24m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $200 (round-trip)
Shortest trip • 6h 06m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 51% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 16% price drop
Most popular
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Flight Deals

Cheap Flights from Boston to San Antonio (BOS-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to San Antonio

Tue, Aug 4 - Fri, Aug 7
Southwest Logo
5:25 am - 11:00 am
BOS
-
SAT
6h 35m
1 stop
Southwest Logo
2:20 pm - 12:30 am
SAT
-
BOS
9h 10m
1 stop
$306Southwest
Fri, Sep 18 - Sat, Sep 19
United Airlines Logo
5:38 pm - 10:44 pm
BOS
-
SAT
6h 06m
1 stop
United Airlines Logo
7:35 am - 4:48 pm
SAT
-
BOS
8h 13m
2 stops
$307United Airlines
Thu, Jul 23 - Tue, Jul 28
Southwest Logo
5:35 am - 1:15 pm
BOS
-
SAT
8h 40m
2 stops
Southwest Logo
6:10 am - 3:00 pm
SAT
-
BOS
7h 50m
2 stops
$308Southwest
Fri, Aug 7 - Mon, Aug 10
Delta Logo
6:05 am - 11:42 am
BOS
-
SAT
6h 37m
1 stop
Delta Logo
2:43 pm - 10:25 pm
SAT
-
BOS
6h 42m
1 stop
$309Delta
Tue, Aug 4 - Fri, Aug 7
Southwest Logo
5:25 am - 11:00 am
BOS
-
SAT
6h 35m
1 stop
Southwest Logo
2:05 pm - 10:10 pm
SAT
-
BOS
7h 05m
2 stops
$311Southwest
Tue, Jul 28 - Tue, Aug 4
Southwest Logo
5:50 am - 10:35 am
BOS
-
SAT
5h 45m
1 stop
Southwest Logo
1:30 pm - 10:15 pm
SAT
-
BOS
7h 45m
2 stops
$314Southwest
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
5:35 am - 12:50 pm
BOS
-
SAT
8h 15m
2 stops
Southwest Logo
5:35 am - 2:30 pm
SAT
-
BOS
7h 55m
2 stops
$316Southwest
Fri, Aug 7 - Mon, Aug 10
Delta Logo
9:01 am - 12:25 pm
BOS
-
SAT
4h 24mnonstop
Delta Logo
1:20 pm - 6:47 pm
SAT
-
BOS
4h 27mnonstop
$318Delta
Wed, Jul 22 - Sat, Jul 25
Delta Logo
5:30 am - 1:38 pm
BOS
-
SAT
9h 08m
1 stop
Delta Logo
5:00 pm - 1:20 am
SAT
-
BOS
7h 20m
1 stop
$319Delta
Fri, Sep 18 - Sat, Sep 19
Southwest Logo
12:40 pm - 11:15 pm
BOS
-
SAT
11h 35m
1 stop
Southwest Logo
6:35 am - 3:50 pm
SAT
-
BOS
8h 15m
2 stops
$320Southwest
Booking Insights

KAYAK's insights & trends for Boston to San Antonio flights

Get data-powered insights and trends into flights from Boston to San Antonio to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to San Antonio departing in August.

What’s the cheapest day of the week to fly from Boston to San Antonio?

The average price of all round-trip flights from Boston to San Antonio clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to San Antonio, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from San Antonio, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Boston to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to San Antonio is January, where tickets cost $362 (return) on average. On the other hand, the most expensive months are April and October, where the average cost of round-trip tickets is $481 and $472 respectively.

Can I save money by flying with a layover from Boston to San Antonio?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $339 on average.

How far in advance should I book a flight from Boston to San Antonio?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to San Antonio, you should book around 5 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Boston to San Antonio

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonSeptember
Cheapest flight$124
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Boston to San Antonio

When to book flights from Boston to San Antonio

Are your dates flexible? Find out the best times to travel from Boston to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to San Antonio

  • How can I get to BOS from downtown Boston?

    You can get to BOS from the city center by train, bus, or taxi. The cheapest and easiest way is through the T, which can help you reach BOS. Most people don't like being on public transportation due to some inconveniences, and that's where you can hire a taxi to get you to BOS within about 30min.

  • Is there a kid's play area at BOS?

    Yes, BOS has various kid's play areas where you can leave your kids to have fun as you clear with the airport desks. The kids' spaces are located at terminal B kid port, past security at gate 30 to B36. The other kids' play section can be found in the retail corridor near entrances B15 to B16. These areas are safe spaces for kids to play, and they are located near the washrooms and concessions.

  • Where can I unwind at SAT after a flight to San Antonio?

    There are several airport lounges at SAT where you can relax and grab a drink. Some lounges include the United Club located in terminal B between gates B3 and B5. The USO lounge is located at terminal B around the Baggage Claim area. And, another Delta Sky Club is situated in terminal 4, concourse B near gate 31.

  • Where can I inquire about anything at SAT?

    Information desks are located in various terminals at SAT, where you can inquire about any information. The information areas are found in the baggage claim area and the ticketing area at all the terminals. Also, there is personnel in blue uniforms which can assist you with any question you may need clarification.

  • What is the cheapest flight from Boston to San Antonio?

    In the last 5 days, the lowest price for a flight from Boston to San Antonio was $124 for a one-way ticket and $306 for a round-trip.

  • Do I need a passport to fly between Boston and San Antonio?

    No, a passport isn't needed to fly from Boston to San Antonio. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Boston to San Antonio?

    Delta, JetBlue, and Hawaiian Airlines offer inflight Wi-Fi service on the Boston to San Antonio flight route.

  • Which aircraft models fly most regularly from Boston to San Antonio?

    The Airbus A319 is the aircraft model that flies most regularly on the Boston to San Antonio flight route.

  • Which airline alliances offer flights from Boston to San Antonio?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Boston and San Antonio, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Boston to San Antonio?

    There are nonstop flights from Boston to San Antonio on a daily basis.

  • Which is the best airline for flights from Boston to San Antonio, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Boston to San Antonio are Southwest and Delta. With an average price for the route of $418 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $455 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Boston to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Boston with another airline. Booking your flights between Boston and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $288 or less one-way and $339 or less round-trip.
  • When going for an extended trip to San Antonio, you don't have to worry about the safety of your vehicle as there are long-term parking options at Boston Logan International Airport (BOS). The long-term parking spots are located at the central parking garage, Terminal B garage, Terminal E, and Economy parking.
  • You are recommended to be at the airport 3h before departure to have enough time to pass through all the required checkpoints without rushing.
  • If you wish to travel with your pets or any other animal, you should contact the airline you will use and inquire about their pet guidelines. Also, BOS has eight pet relief areas located at the Arrival level outside every terminal. The other two can be found outside terminal B. The post-security relief areas are situated in terminals B, C, and E.
  • When you require assistance accessing the airport, you should contact the airline you are traveling with and notify them of your needs 48h before your flight. Informing them allows them to make arrangements for how you will be picked up once you land at San Antonio International Airport (SAT).
  • If the queues are long at SAT, you can distract your mind by streaming movies and music by connecting to the free Wi-Fi. If you wish to continue with your work at the airport, you can also connect your laptop because Wi-Fi is available in all terminals.

Prefer to fly direct from Boston to San Antonio?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to San Antonio.
Find which airlines fly direct from Boston Logan Intl Airport to San Antonio Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to San Antonio

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Direct returns

San Antonio to Boston Logan Intl

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Reviews of the top 5 airlines serving from Boston to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Boston to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4250 reviews
8.0Comfort
8.1Boarding
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

10.0 ExcellentK, Jun 2026
SAN - AUS
Read more Southwest reviews

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

I elected to pay for the upgrades and found very little difference

WiFi was not working and didn’t have a beverage service

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

It was good. I wish you had gluten free snacks for my husband.

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

Traveling with delta is always a pleasure from the take off to the landing 🛬 🥰

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

The flight was delayed, they didn’t even have water for the toilets or for drinks

It’s always a great time flying with united airlines.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

No access to the Wi-Fi, noisy group of people made it difficult for me to hear through my earbuds. Snacks and drinks - limited service when your seat is at the back of the plane - people up front are always served first and the back gets whatever is left. Not pleased.

Didn't make it dir to delays - no support from United staff

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

Terrible boarding and first class experience. Nice staff but overall disorganized, dirty plane.

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Got home at 3am after deboarding the plane. No compensation offered by American

Early departure meant on time arrival. Only real problem was free internet had issues, although chatting with the internet help desk (you can do this via aainflight.com) got the issue resolved.

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Gate agents for boarding not trained. I am disabled have eyesight problems and was told “do it on line.”. Wheelchair unavailable in Dallas even though it was in my record

Everything went on schedule so I have not much to say. I was a bit disappoint with the breakfast choice - I did not have a choice as there was only one option left by the time the trolly came to my end and I could not enjoy it.

After boarding our plane we sat for 20 minutes and then we’re told we needed to deplane and board another plane due to a leak. This added another 2 hrs to our travel time and then we needed to board our long haul flight of 15 hours! Our seats were very cramped…was not expecting this for a long haul plane ride. Very uncomfortable. The drink and food service were not often enough to be able to stay hydrated. I have been on long flights where the stewards would walk the aisles with water to insure you were hydrated. The flight was a smooth one and the landing was exceptional.

Flight left 2 hours late with no explanation as to the delay

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

The gate attendant in Boston had a high raspy voice and spoke much too fast to be understood. Not pleasant.

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

We had better-than-average leg room and I loved the access to shows and movies. During boarding, we could not hear the agent even though we were close to the boarding door, which was kind of scary when we realized that half of the passengers had already boarded. Also, the entertainment was awesome, but I could not hear the movie as well as I would have liked, because my headphones were crappy. It would have been better if I could connect my own ear buds via Bluetooth or if JetBlue provided headphones.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

What a great flight. Seats were more comfortable than other airlines. Flight was full but very easy to navigate. No stress no drama

I loved the flight and the crew. It was comfortable and smooth.

Everything you need to know for your flight from Boston to San Antonio

Information on your arrival and departure airports