Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from San Antonio to Boston
The cheapest flights right now
San Antonio – Boston
Outbound – Dec 12, 2026
1 stop
5h 51m DFW
Return – Dec 21, 2026
1 stop
6h 56m DFW
$432
3 days ago
San Antonio – Boston
Outbound – Dec 12, 2026
1 stop
5h 38m CLT
Return – Dec 21, 2026
1 stop
6h 35m CLT
$482
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$290
Average price of a round trip
$370
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
22h11
A flight from San Antonio to Boston takes on average 22h11.
Best time
August
According to user searches, the ideal month to go to Boston is August.
Tips for finding a cheap flight from San Antonio to Boston
Check out our tips for booking your flight to Boston (USA) from San Antonio (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is December, with an average flight ticket price of $336 (calculation over the last two years). The most touristic season corresponds to the months of October, March and November.
For the cheapest flights, it is advisable to buy your ticket at least 36 days before the departure date.
The airline offering the cheapest flight tickets is American Airlines. A ticket from the airline American Airlines to Boston costs on average $344.
The airlines that offer the most flights are .
Price of flight tickets from San Antonio to Boston
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $290 to $475
- The average price of a flight ticket is about $370
- Prices are lowest for stays in the month of December
- The month in which booking a ticket is cheaper is: December
info departure city :
San Antonio, USA
airports :
San Antonio International Airport (SAT)
Stinson Municipal Airport (SSF)
Martindale Air Field (MDA)
local time :
San Antonio is a city in the country USA, the time zone is [[timezone]]. In San Antonio, it is currently {fromLocalTime}, the temperature is on average 18°C, with a minimum of 13°C and a maximum of 24°C.
The city of San Antonio has 3 airport(s): San Antonio, Stinson and Martindale Air Field
destination info :
Boston, USA
airport :
Boston-Logan International Airport (BOS)
local time :
Boston is in the country USA, the time zone is [[timezone]]. In Boston, it is currently {toLocalTime}, the temperature is on average 5°C, with a minimum of 3°C and a maximum of 8°C.
The city of Boston has 1 airport(s): Boston-Logan
Useful info about Boston
What is the least touristic period to go to Boston?
If you want to visit Boston during the least touristic period, choose the month of August.
What is the most popular time to travel to Boston?
In Boston, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from San Antonio to Boston?
According to our data, it is recommended to book your flight 36 days before your departure. If you book your flight ticket 6 weeks before your departure, you may find a price below average. You can also choose morning flights that are 1% cheaper than afternoon and evening flights. The cheapest day to book a flight from San Antonio to Boston is Saturday.
What are the arrival and destination airports when traveling between San Antonio and Boston?
When you leave, you can leave from San Antonio, and you will arrive at Boston-Logan.
How to reach San Antonio airport from the city centre?
The airport San Antonio is located 11 km, Stinson is located 9 km or Martindale Air Field is located 12 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from San Antonio to Boston?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between San Antonio and Boston?
In summer, the average temperature is 22°C in Boston and 29°C in San Antonio. The average rainfall in summer is 106 mm in Boston and 57 mm in San Antonio. In summer, it is warmer in San Antonio and it rains less in San Antonio. In winter, it is colder in San Antonio and it rains more in Boston.
