$129 Find Cheap Flights from San Antonio to Boston - Compare and Save

These are the earliest and latest flight times available from San Antonio to Boston:

• Earliest: departs at 12:40 pm and lands at 4:48 pm
• Latest: departs at 5:50 pm and lands at 9:58 pm.

The flight takes about 4h 08m.

Two cabin classes are available on flights from San Antonio to Boston:

• Economy Class
• First Class

A nonstop flight from San Antonio to Boston takes 4h 08m, covering 1,761 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from San Antonio to Boston range from $323 to $504, with an average of $399 over the past 12 months. Anything below $323 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 64% above the $399 route average. Book 23 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $269 round-trip via Fort Lauderdale (FLL), compared to $423 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A220-300 family is used most often on this route, operated mainly by JetBlue and Delta. Other aircraft seen on the route include Boeing 737-800 variants.

Afternoon is the busiest departure period on San Antonio to Boston flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $315 to $2,119. That means the highest observed fare was about 7x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on San Antonio to Boston flights:

• Delta
• JetBlue

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from San Antonio to Boston are currently lower than usual. Average one-way flight prices are about $203, which is 30% below the typical average for this route.

Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates averaging $79 for economy cars. Top options include:

• Dollar
• Hertz
• Budget
• Thrifty
• Sixt

Flights from San Antonio to Boston usually depart from San Antonio (SAT) and arrive at Boston Logan Intl (BOS).

One-stop flights from San Antonio to Boston most commonly connect through:

• Dallas/Fort Worth (DFW) - 18% of one-stop connections
• Lambert-St Louis (STL) - 13% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 12% of one-stop connections
• Baltimore/Washington (BWI) - 9% of one-stop connections

Yes. Flexible dates can save you up to 18% on flights from San Antonio to Boston. Tuesday is the cheapest departure day at $368 round-trip on average, while Sunday is the most expensive at $447, a difference of $79.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only Delta operates flights between San Antonio and Boston.

Flying via Lambert-St Louis (STL) gives the shortest average 1-stop total travel time at 5h 56m, compared with 6h 02m via Dallas Love Field (DAL) and 6h 10m via Nashville Intl (BNA).

Boston is 1 hour ahead of San Antonio (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Boston are TD Garden, Fenway Park and Boston Common. These are among the most viewed places in Boston on KAYAK.

Among airlines operating San Antonio to Boston flights:

• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Delta: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Yes, car rentals at Boston Logan International Airport (BOS) are located at the consolidated Rental Car Center (RCC). A rental car offers flexibility for exploring the city and reaching areas that may be less accessible by public transportation.

Wheelchair assistance is available at no charge and can be scheduled through the airline. Service animals are allowed to accompany their owners at the airport. San Antonio International Airport also provides free assistance through the Aira app for travelers who are visually impaired.