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$155 Cheap Flights from Boston (BOS) to San Antonio (SAT)

View $155 flight on Fri, Nov 27, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to San Antonio International Airport (SAT)

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

Prices were available within the past 7 days and start at $155 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Oct 15 - Sat, Oct 24
BOS
Boston
SAT
San Antonio
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Oct 15 from Boston to San Antonio, returning Sat, Oct 24, priced at $289 found 1 day ago
Delta
Tue, Feb 2 - Wed, Feb 10
BOS
Boston
SAT
San Antonio
$289 Roundtrip, just found
$289
Roundtrip
just found
Select Delta flight, departing Tue, Feb 2 from Boston to San Antonio, returning Wed, Feb 10, priced at $289 just found
Southwest Airlines
Tue, Dec 8 - Thu, Dec 17
BOS
Boston
SAT
San Antonio
$299 Roundtrip, found 1 day ago
$299
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Dec 8 from Boston to San Antonio, returning Thu, Dec 17, priced at $299 found 1 day ago
Delta
Tue, Feb 2 - Wed, Feb 10
BOS
Boston
SAT
San Antonio
$299 Roundtrip, just found
$299
Roundtrip
just found
Select Delta flight, departing Tue, Feb 2 from Boston to San Antonio, returning Wed, Feb 10, priced at $299 just found
Southwest Airlines
Wed, Oct 21 - Thu, Oct 29
BOS
Boston
SAT
San Antonio
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Oct 21 from Boston to San Antonio, returning Thu, Oct 29, priced at $304 found 1 day ago
Southwest Airlines
Tue, Dec 8 - Wed, Dec 16
BOS
Boston
SAT
San Antonio
$306 Roundtrip, found 1 day ago
$306
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Dec 8 from Boston to San Antonio, returning Wed, Dec 16, priced at $306 found 1 day ago
Frontier Airlines
Fri, Dec 4 - Thu, Dec 10
BOS
Boston
SAT
San Antonio
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Dec 4 from Boston to San Antonio, returning Thu, Dec 10, priced at $308 found 1 day ago
Frontier Airlines
Fri, Dec 4 - Fri, Dec 11
BOS
Boston
SAT
San Antonio
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Dec 4 from Boston to San Antonio, returning Fri, Dec 11, priced at $308 found 1 day ago
American Airlines
Fri, Nov 27 - Tue, Dec 1
BOS
Boston
SAT
San Antonio
$309 Roundtrip, just found
$309
Roundtrip
just found
Select American Airlines flight, departing Fri, Nov 27 from Boston to San Antonio, returning Tue, Dec 1, priced at $309 just found
United
Thu, Jan 21 - Sun, Jan 24
BOS
Boston
SAT
San Antonio
$329 Roundtrip, found 1 hour ago
$329
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jan 21 from Boston to San Antonio, returning Sun, Jan 24, priced at $329 found 1 hour ago

Alternative airports near San Antonio

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Antonio Intl. SAT. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $663
SAT
San Antonio Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $663

What you need to know for your flight from Logan Intl. to San Antonio Intl.

Boston (BOS) to San Antonio (SAT) at a glance

Discover a range of airlines offering flights from Boston (BOS) to San Antonio (SAT) on this domestic short-haul route. You can explore options from both full-service and low-cost carriers to find the best itinerary that suits your budget and schedule. As you plan your visit to San Antonio's iconic attractions and vibrant neighborhoods, be sure to check the latest deals on flights from Logan International Airport (BOS) to San Antonio International Airport (SAT) for your next flight.

  • Fastest flight duration: around 4h 45m non-stop
  • Route distance: roughly 1,800 miles (2,900 km)
  • Flights per week: around 25+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $120–$430, depending on seasonality and how far ahead you book

Flights from Logan International Airport (BOS) to San Antonio International Airport (SAT)

Based on recent traveler bookings, here are the top airlines flying from Boston to San Antonio, favored for their non-stop and one-stop flight options. Popular layover locations include Dallas-Fort Worth International Airport (DFW) with an approximate 1 hour and 15-minute layover, Charlotte-Douglas International Airport (CLT) at about 50 minutes, and Nashville International Airport (BNA), also around 50 minutes. These choices allow you to tailor your journey by balancing price, total travel time, and cabin class for the ideal itinerary.

  • Delta: As a comprehensive service provider, Delta operates both non-stop and one-stop flights, capturing around 33% of departures on this route. One-way fares generally fall between $120 and $500, with a typical non-stop travel duration of 4 hours and 45 minutes.
  • American Airlines: This full-service airline offers one-stop options and constitutes about 25% of the flights on this route. Fares for one-way journeys typically range from $130 to $405, with an in-flight duration of 5 hours and 30 minutes, leading to a total travel time of approximately 6 hours and 45 minutes, including layovers.
  • Southwest Airlines: Known as a budget-friendly carrier, Southwest provides one-stop services, accounting for roughly 24% of departures on this route. One-way fares are usually between $120 and $440, with a flight time of 5 hours and 30 minutes, resulting in a total journey time of about 6 hours and 45 minutes when factoring in layovers.
  • United: This full-service airline offers both non-stop and one-stop flights, making up around 15% of the departures on this route. With one-way fares ranging from $130 to $430, expect an in-flight duration of 5 hours and 30 minutes and a total travel time of approximately 6 hours and 45 minutes.
  • Frontier Airlines: As a low-cost option, Frontier provides one-stop service and represents about 3% of departures on this route. One-way fares typically vary from $120 to $365, with an in-flight time of 5 hours and 30 minutes, leading to an overall journey duration of about 6 hours and 45 minutes, including layover time.

Travelers flying from Boston to San Antonio can opt for upgraded service with both Delta and United, which offer first class and premium economy class options for enhanced comfort.

Best time to fly from Boston (BOS) to San Antonio (SAT)

The most popular months for travelers flying from Boston to San Antonio are January, March, and April, when peak temperatures in San Antonio reach up to 70°F in April. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 86.5°F. For better deals, July usually offers the lowest average one-way fare around $210. Flight availability peaks in October, with approximately 32 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 19 flights per week.

  • Cheapest time to fly: July usually offers good deals with average one-way fare around $210, roughly 16% cheaper than the yearly average.
  • More budget-friendly months to fly: August and June typically offer average one-way fares of around $218.
  • Most flight options: October has the highest number of flights from Boston to San Antonio, with approximately 32 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January53.2°F (11.8°C)Moderately High21$251
February56.1°F (13.4°C)Average19$257
March63.7°F (17.6°C)Moderately High21$267
April70.0°F (21.1°C)Moderately High30$269
May76.3°F (24.6°C)Average30$232
June82.8°F (28.2°C)Average29$221
July85.3°F (29.6°C)Average31$210
August86.5°F (30.3°C)Moderately Low24$216
September81.0°F (27.2°C)Moderately Low23$264
October72.5°F (22.5°C)Average32$295
November61.7°F (16.5°C)Average25$262
December55.6°F (13.1°C)Moderately Low28$292

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Boston (BOS) to San Antonio (SAT)

  • Boston to Austin (BOS-AUS): Austin-Bergstrom International Airport (AUS) is located approximately 67 miles from San Antonio International Airport (SAT). One-way economy prices for this trip generally fall between $80 and $400, varying with the season and how far in advance you book. Travelers can choose from both non-stop and one-stop flights. Major airlines servicing this route include Delta and the budget-friendly JetBlue Airways. Additionally, first-class service is offered on this route.

How to find the best prices for flights from Boston (BOS) to San Antonio (SAT)

Getting some of the best deals on flights from Boston to San Antonio is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2 to 8 weeks in advance, which is also when most travelers make their reservations. Morning departures between 5 am and 12 pm tend to be more affordable and are the most popular flight times. Additionally, flying on Thursdays offers both lower prices and high traveler demand.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at San Antonio International Airport from Logan International Airport

San Antonio welcomes travelers from Boston with a range of transport options based on price, convenience, and proximity. Here's how to reach San Antonio efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in San Antonio, with private rides that can be arranged in advance.
  • Car rental: Renting a car from San Antonio International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at San Antonio International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From San Antonio International Airport, San Antonio Seaport, a seaport, is about 0.4 miles away, while San Antonio Station, a train station, is about 7.5 miles from the airport.

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) cost?
You can find cheap one-way flights from $155 and cheap return flights from $289 Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) with Expedia. One-way flights typically cost between $201 and $1285, and return flights often range between $311 and $1211. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The cheapest month to fly from BOS to SAT is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
You can fly direct from BOS to SAT on Delta, with around 7 flights per week.
What is the cheapest airline that flies from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
Delta is one of the cheapest airlines offering nonstop flights from Logan Intl. (BOS) to San Antonio Intl. (SAT), with round-trip tickets starting from around $446. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The best airline to fly with from Boston, MA (BOS) to San Antonio, TX (SAT) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. WN offers the most daily flights from BOS to SAT, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
You can find approximately 1 nonstop flights per day from Logan Intl. (BOS) to San Antonio Intl. (SAT). For more options, look at flights that include layovers.
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The earliest flight from Logan International Airport (BOS) to San Antonio International Airport (SAT) usually leaves at around 5:00 AM, also operated by American Airlines. Catching this early flight allows you to make the most of your day in San Antonio. This service is seasonal and active in April. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
For flights from Boston, MA (BOS) to San Antonio, TX (SAT), the most popular departure times are in the late morning, from 9am to 12pm. About 24% of passengers choose this time window. Many major carriers, including Delta, American Airlines, and United Airlines, offer flights during this period. This timing is favored as it allows you to start your day in Boston before heading to Texas.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
Flying nonstop from BOS to SAT takes around 4 hours 50 minutes, with the route covering approximately 1,762 miles. Flights with a layover typically take 2 hours 10 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
First class seats are offered on the BOS to SAT route. First class cabins are available on:

  • United Airlines
  • American Airlines
  • Delta Air Lines
  • Spirit Airlines

How much is a business class flight from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
A direct, return business class ticket from Boston (BOS) to San Antonio (SAT) typically costs between $958 - $1,559. A non-stop, one-way business class flight is usually around $958 - $1,559 per adult in economy/coach class. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Antonio from Logan Intl. (BOS)?
If you're planning to travel to San Antonio from Logan Intl. (BOS), you can fly into San Antonio Intl. (SAT) Some flights may connect through major hubs like Portland Intl. (PDX), Baltimore Washington Intl. Thurgood Marshall (BWI), Midway Intl. (MDW) before reaching San Antonio. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) San Antonio Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
If you booked your Boston, MA (BOS-Logan Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Logan Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$288
Distance
1761 mi
Average flight time
4 hours 25 mins

Book with confidence

Boston to San Antonio Flights

The cheapest times to fly from Boston to San Antonio

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to San Antonio are during the month of October. You can find some of the cheapest flights from Boston to San Antonio with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to San Antonio

Sunday is one of the best days to book for cheap flights from Boston to San Antonio: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to San Antonio

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to San Antonio in 2026. You can also book with separate airlines for your outbound and return journeys, from $155 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to San Antonio flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to San Antonio airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to San Antonio Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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