BOS - SAT

$80 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 7/17. 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.
1 adult
1 adult, Economy

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 (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

Thu, Jul 17 - Sun, Jul 20
Spirit Airlines Logo
9:32 am - 4:33 pmBOS-SAT
8h 01m1 stop
Spirit Airlines Logo
5:38 pm - 3:43 pmSAT-BOS
21h 05m1 stop
$187Spirit Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7
Spirit Airlines Logo
10:20 am - 5:18 pmBOS-SAT
7h 58m1 stop
Spirit Airlines Logo
7:30 pm - 3:45 pmSAT-BOS
19h 15m1 stop
$188Spirit Airlines
Find Deal
Fri, Aug 22 - Tue, Aug 26
Delta Logo
9:20 am - 12:45 pmBOS-SAT
4h 25mnonstop
Delta Logo
2:40 pm - 8:00 pmSAT-BOS
4h 20mnonstop
$249Delta
Find Deal
Fri, Aug 22 - Sun, Aug 24
Delta Logo
9:00 am - 3:41 pmBOS-SAT
7h 41m1 stop
Delta Logo
2:40 pm - 8:00 pmSAT-BOS
4h 20mnonstop
$259Delta
Find Deal
Tue, Sep 2 - Sun, Sep 7
Southwest Logo
5:40 am - 2:05 pmBOS-SAT
9h 25m1 stop
Southwest Logo
4:15 pm - 12:20 amSAT-BOS
7h 05m1 stop
$264Southwest
Find Deal
Tue, Jul 29 - Fri, Aug 1
Southwest Logo
6:05 am - 3:55 pmBOS-SAT
10h 50m2 stops
Southwest Logo
5:30 pm - 12:05 amSAT-BOS
5h 35m1 stop
$290Southwest
Find Deal
Fri, Nov 14 - Sun, Nov 16
American Airlines Logo
3:55 pm - 11:30 pmBOS-SAT
8h 35m1 stop
American Airlines Logo
6:35 am - 3:20 pmSAT-BOS
7h 45m1 stop
$299American Airlines
Find Deal
Mon, Jun 30 - Sat, Jul 5
American Airlines Logo
6:17 pm - 11:56 pmBOS-SAT
6h 39m1 stop
American Airlines Logo
6:12 am - 3:47 pmSAT-BOS
8h 35m1 stop
$339American Airlines
Find Deal
Fri, Aug 22 - Tue, Aug 26
United Airlines Logo
7:30 am - 1:22 pmBOS-SAT
6h 52m1 stop
United Airlines Logo
2:25 pm - 11:57 pmSAT-BOS
8h 32m2 stops
$354United Airlines
Find Deal
Fri, Aug 22 - Mon, Aug 25
United Airlines Logo
3:15 pm - 10:48 pmBOS-SAT
8h 33m2 stops
United Airlines Logo
2:25 pm - 11:57 pmSAT-BOS
8h 32m2 stops
$359United Airlines
Find Deal
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, flight status, and order ahead options at BOS restaurants.

Read more about BOSby Blane Bachelor
SAT

Take the #5 VIA bus from SAT to downtown San Antonio in about 30 minutes for a budget-friendly option.

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 Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from San Antonio, Saturday 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 September, where tickets cost $278 (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 $419 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 1 stop layover the cheapest option at $800 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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJune
High seasonOctober
Cheapest flight$80
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 6% 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 $80 for a one-way ticket and $187 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 $376 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 $259 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, 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

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.
8.0
SouthwestOverall score based on 4278 reviews
8.2Boarding
7.6Entertainment
8.6Crew
7.1Food
8.0Comfort
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

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!

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Great flight! Only complaint I had was that I didn’t get breakfast that morning because I don’t eat eggs for breakfast.. I ate an energy bar I bought in the airport which I had never done before. Otherwise, another great Delta flight!

Gate agent did not hold flight for connection, provided no assistance to get new flight

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

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.

The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.

Communication since no reason or explanation was given for 3 hrs delay

Flight was delayed several 3 hours - no reason was given and no communication what so ever.

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

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

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

Boarding on time and fight was early but they didn't let us off the plane on time so we missed our connecting flight to Japan.

I miss the screens they used to have for the long flights. I use a Kendal and it doesn’t work well with there WiFi. I tried my cell and the wifi was not good for it either this is the free wifi.

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

Information on your arrival and departure airports

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