BOS - SAT

$76 Find Cheap Flights from Boston to San Antonio

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 5/21. 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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KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Antonio, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Boston to San Antonio

 
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.

Recent round-trip flight deals from Boston to San Antonio

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to San Antonio.
Discover the best prices for you by selecting your travel dates on KAYAK.
Spirit Airlines Logo
3:49 pm - 10:51 pmBOS-SAT
8h 02m1 stop
Spirit Airlines Logo
7:05 am - 2:44 pmSAT-BOS
6h 39m1 stop
$168Spirit Airlines
Find Deal
Tue, May 27 - Tue, Jun 3
Spirit Airlines Logo
3:49 pm - 10:51 pmBOS-SAT
8h 02m1 stop
Spirit Airlines Logo
10:01 am - 11:47 pmSAT-BOS
12h 46m1 stop
$184Spirit Airlines
Find Deal
Tue, May 27 - Fri, May 30
 Logo
3:49 pm - 10:51 pmBOS-SAT
8h 02m1 stop
 Logo
8:31 pm - 12:44 amSAT-BOS
27h 13m1 stop
Wed, May 14 - Fri, May 16
Delta Logo
9:15 am - 1:13 pmBOS-SAT
4h 58mnonstop
Delta Logo
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$239Delta
Find Deal
Fri, Aug 22 - Sun, Aug 24
Delta Logo
6:00 am - 1:07 pmBOS-SAT
8h 07m1 stop
Delta Logo
2:00 pm - 7:05 pmSAT-BOS
4h 05mnonstop
$249Delta
Find Deal
Fri, Aug 22 - Sun, Aug 24
Southwest Logo
6:05 am - 3:55 pmBOS-SAT
10h 50m2 stops
Southwest Logo
5:30 pm - 12:05 amSAT-BOS
5h 35m1 stop
$289Southwest
Find Deal
Wed, Jun 18 - Fri, Jun 20
American Airlines Logo
5:49 am - 11:39 amBOS-SAT
6h 50m1 stop
American Airlines Logo
6:00 am - 1:08 pmSAT-BOS
6h 08m1 stop
$318American Airlines
Find Deal
Wed, Jun 18 - Sun, Jun 22
Southwest Logo
5:00 am - 9:55 amBOS-SAT
5h 55m1 stop
Southwest Logo
12:50 pm - 10:05 pmSAT-BOS
8h 15m2 stops
$353Southwest
Find Deal
Mon, Jun 2 - Wed, Jun 4
United Airlines Logo
3:16 pm - 10:57 pmBOS-SAT
8h 41m1 stop
United Airlines Logo
5:30 am - 2:14 pmSAT-BOS
7h 44m2 stops
$354United Airlines
Find Deal
Mon, Jun 2 - Wed, Jun 4
United Airlines Logo
9:36 am - 5:42 pmBOS-SAT
9h 06m2 stops
United Airlines Logo
11:45 am - 11:57 pmSAT-BOS
11h 12m2 stops
$359United Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Expert advice

Expert advice for your flight from Boston to San Antonio

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Delta

Delta's Comfort Plus seats offer up to 3 inches extra legroom, enhancing comfort on medium-haul flights.


Delta offers free Wi-Fi for SkyMiles members on domestic flights, ensuring connectivity throughout your journey.

Read more about Deltaby Stefanie Waldek
JetBlue

JetBlue offers free gate-to-gate Wi-Fi and live TV, enhancing your in-flight experience.


JetBlue’s Even More Space upgrade provides up to 7” extra legroom and priority security access.

Read more about JetBlueby Harriet Baskas
Airports
BOS

Download the FlyLogan app for gate info, order ahead options, and free Wi-Fi. Reserve parking in advance during busy travel times.

Read more about BOSby Blane Bachelor
SAT

Take the #5 VIA bus from SAT to downtown San Antonio. It's inexpensive, takes about 30 minutes, and has plenty of room for luggage.

Read more about SATby Brandon Schultz
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet Baskas

Harriet Baskas

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.

Read more
Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz

Brandon Schultz

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.

Read more
Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor

Blane Bachelor

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.

Read more
Useful Info

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.

Find cheap flights to San Antonio
Find cheap flights to San Antonio

Planning a trip from Boston to San Antonio? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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, Saturday is the cheapest day to fly and Monday 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 September, where tickets cost $283 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $464 and $401 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.

No, with an average price for the route of $612, prices are generally cheapest when you fly direct.

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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
High seasonApril
Cheapest flight$76
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 13% 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 3 days, the lowest price for a flight from Boston to San Antonio was $76 for a one-way ticket and $168 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, American Airlines, and Alaska 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 A220-100 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?

    SkyTeam is the only airline alliance operating flights between Boston and San Antonio.

  • 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, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Boston to San Antonio are Delta and Southwest. With an average price for the route of $377 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $428 and an overall rating of 8.0.

  • 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 $178 or less one-way and $269 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?

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, EL AL

Delta, EL AL

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, EL AL

Delta, EL AL

Sunday

Delta

Delta

See more direct flights
See more direct flights

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.
8.0
SouthwestOverall score based on 4294 reviews
7.6Entertainment
8.6Crew
8.2Boarding
8.0Comfort
7.1Food
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Easy to book and to get check in and get on and off.

First time I’ve ever missed a flight and it was an international flight.. Southwest put me on the next flight and it was the best experience possible.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

Not the best. Mean. Didn’t give any value to me being a united silver member and lots of attitude.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Asked several times dairy free options and was ignored. Was told chips was the only thing I could have that I should have put it on my profile “which it is”. Very unprofessional. WiFi didn’t work have the flight. Overall a very bad experience.

Plane still had screens for watching movies. Good selection too.

Excellent from start to finish. All staff members were amazing!

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

It was too hot in the cabin. The AC did not help.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

Several delays. Next flight was worse. Did not arrive home until 2am PT

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Any sort of gluten free snack option would be nice

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

Between Las Vegas and Dallas was okay But, once in the Dallas airport, notice, I have disability and ask for a wheelchair, they leave in a middle of nowhere, the personal in charge try to push me on a cart where I couldn't sit because was to high. Then they don't care about me, they bulling, till I start to yelling and crying, ask to everyone around, who can help me. The man in charge make a despective movements and said you are to loosing the fly. The last name in his batch started with an H, I did not have the full name. A nightmare. After all, a woman in charge was walking very slowly and asking me for a tip cause she was helping me to reach the fly. For years, AA has been the preferred airline. The personal in charge of the disabled people are discriminate me. Thank you Kayak.

Flight was late and missed connecting flight. They could have better accommodated, but instead did an overnight and had to arrive the next afternoon.

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.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

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

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