Cheap flights from San Antonio to Boston

San Antonio
SAT
Logan
BOS

Flight deals from San Antonio to Boston

Below you can see the best deals on flights San Antonio — Boston for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 1 September, from $148.

Top 10 cheap flights from San Antonio to Boston

About the San Antonio — Boston flight

Looking for cheap flights from San Antonio to Boston? Compare fares from different airlines, check the flight schedule and travel time — and book your San Antonio — Boston ticket online at the best price.

The route has direct flights — around 11 flights per week, flights are operated by Delta, a nonstop flight takes about 4 h 27 min, the distance between the cities is around 2,844 km.

Planning your trip? You may find our Boston travel guide, how to get from the airport into town and Boston weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $148Min. price
SeptemberCheapest
AugustPeak season
YesDirect flights
2,844 kmDistance
4 h 27 minTravel time
1Airlines
11 / wkFlights

Flight schedule from San Antonio to Boston

The table shows direct flights from San Antonio to Boston on the selected date. The flight takes approximately 4 h 27 min. Regular flights are operated by Delta. Departures from San Antonio International Airport airports, arrivals at Logan International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Wed, 19 August
Any time
Last update: 17 Aug 2026

Flight ticket prices by day: San Antonio — Boston

Below is a calendar of the lowest flight ticket prices for San Antonio — Boston by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $148 in September, and the most expensive are around $426 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from San Antonio to Boston by month. Tickets are usually cheapest in September (around $139) and priciest in March (about $213) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$167mediumMay$181mediumSep$139low
Feb$162lowJun$190highOct$190high
Mar$213highJul$185mediumNov$167medium
Apr$194highAug$144lowDec$194high

Some values are estimated based on seasonality.

When to fly

Weather in Boston: it is warmest in July (up to 28 °C on average) and coolest in January (around 3 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Boston

Dry and wet days · Boston

Wind speed and direction · Boston

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How to get the best deal on a San Antonio — Boston ticket

  • Book ahead: fares for San Antonio — Boston are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Flights San Antonio — Boston operate on Sundays, Mondays, Wednesdays, Thursdays and Fridays — keep that in mind when picking your travel dates.
  • The cheapest month to fly to Boston is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the San Antonio — Boston route are operated by 1 airline; Delta runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • DeltaDL
    4x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight SAT → BOS4x/week
      Duration
      4h 20m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the San Antonio — Boston route

Flights San Antonio — Boston depart from San Antonio International Airport and arrive at Logan International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

San Antonio

SAT
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Boston

BOS
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the San Antonio — Boston flight

How long is the flight from San Antonio to Boston?

A nonstop San Antonio — Boston flight takes about 4 h 27 min — the distance between the cities is around 2,844 km.

How far is it from San Antonio to Boston?

The distance from San Antonio to Boston is about 2,844 km, which a nonstop flight covers in around 4 h 27 min.

Are there direct flights from San Antonio to Boston?

Yes, there are nonstop flights San Antonio — Boston — around 11 flights per week.

Which airlines fly from San Antonio to Boston?

Airlines operating San Antonio — Boston include Delta. See the full list with schedules in the "Airlines" section on this page.

Which airports do San Antonio — Boston flights use?

Flights from San Antonio depart from San Antonio International Airport, and arrive at Logan International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from San Antonio to Boston?

The price of a San Antonio — Boston ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in August. Tickets typically cost between $148 and $426. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights San Antonio — Boston?

Flights San Antonio — Boston are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from San Antonio to Boston?

To catch a low fare San Antonio — Boston, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from San Antonio

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Where else you can fly from Boston

See all
New York CityWashington, D.C.ChicagoTorontoSan FranciscoAtlantaSeattleLos AngelesPhiladelphiaNantucketLondonDallasOrlandoDenverFort LauderdaleDetroitCharlotteRaleighMontrealNashvilleMarthas VineyardMiamiMinneapolisSan DiegoBuffaloPhoenixMadridTampaPittsburghClevelandBarcelonaIndianapolisSan JuanDublinHoustonParisAustinLas VegasRichmondCincinnati

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