Cheap Flights from Boston (BOS) to San Salvador (SAL)

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      Avianca El Salvador
      Avianca

      Compare Boston Logan International to San Salvador flight deals

      Find the cheapest month or even day of the year to fly to San Salvador

      Book the best San Salvador fare with no extra fees

      Flight deals from Boston Logan International to San Salvador

      Looking for a cheap last-minute deal or the best return flight from Boston Logan International Airport to San Salvador Airport? If you want to travel next month, return fares start from $855. Find the lowest prices on one-way and return tickets right here.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Boston Logan International to San Salvador found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Boston Logan International to San Salvador

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to San Salvador flights are currently cheapest in February.

      Direct flights from Boston Logan International to San Salvador

      Avianca
      Avianca El Salvador

      Boston Logan International to San Salvador: Alternative routes

      Compare routes from Boston Logan International to San Salvador below. You may find an airport to fly into that's cheaper, faster, or easier than San Salvador.

      Boston to San Salvador: Flight information

      The things to know before you go.
      Cheapest flight found$799
      Cheapest month to flyJanuary
      Average flight time5 hrs, 32 mins
      Most popular airlineAvianca El Salvador
      Average flights per week9

      Finding cheap flights from Boston Logan International to San Salvador: Frequently asked questions

      The best price we found for a return flight from Boston Logan International to San Salvador is $799. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      5 hours and 32 minutes is the average flight time from Boston Logan International to San Salvador.
      Avianca El Salvador and Avianca fly direct from Boston Logan International to San Salvador.
      As of October 2026, there are 9 flights per week flying from Boston Logan International to San Salvador.
      The cheapest month to fly from Boston Logan International to San Salvador is usually January.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to San Salvador Airport on Thursday, 28 January 2027.
      Yes – the average flight time is 5 hours and 32 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Salvador but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Salvador is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, United and Avianca offer the cheapest flight tickets to San Salvador.

      Flying from Boston Logan International Airport (BOS) to San Salvador Airport (SAL): what you need to know

      • Take a direct flight from Boston Logan International Airport to San Salvador Airport and you'll be in the air for an average of 5 hours 35 minutes.

      • San Salvador's timezone is UTC-6, making San Salvador one hour behind Boston.

      • You can choose from five weekly Boston Logan International Airport to San Salvador Airport flights. The 15:45 departure with AVIANCA is the earliest flight you can take. AVIANCA operates the last service of the day at 16:50.

      • Leave plenty of time to make your BOS to SAL flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

      • During popular months like July, you'll want to get to the airport earlier than usual. Arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a high season in general.

      • Flying into San Salvador (and then seeing more of El Salvador!) is a breeze with Avianca. This popular carrier has direct flights from Boston Logan International Airport to San Salvador Airport.

      • Most passengers choose to travel with Avianca on this route.

      • Avianca is the most punctual carrier operating BOS to SAL flights. A dependable 85.29% of its services on this route land on time.

      • Think about adding a stopover when booking your ticket from Boston Logan International Airport to San Salvador Airport. Simply uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Check out these options between BOS and SAL:

        • Miami International Airport

        • Orlando International Airport

        • Cancun Airport

      How to find the cheapest flights from Boston Logan International Airport (BOS) to San Salvador Airport (SAL)

      • $369 is currently the lowest price for a one-way Boston Logan International Airport to San Salvador Airport flight. A return flight starts from $799. These prices may change depending on demand.

      • To get cheap tickets from BOS to SAL, book your trip one month before your departure.

      • Plan your trip for June. That's the cheapest month for flights from Boston Logan International Airport to San Salvador Airport. If you're flexible with your travel dates, use the 'Whole month' tool to find the lowest price across each month.

      • You won't have to check every day to see if fares have gone down when you create a Price Alert. We'll send you an update the moment the price changes on cheap flights from BOS to SAL.

      • Pick your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Boston Logan International Airport to San Salvador Airport.

      Handy information about Boston Logan International Airport (BOS)

      • BOS is located at One Harborside Drive.

      • When it comes to Boston Logan International Airport's on-time performance, 75% of flights stick to their scheduled arrival time.

      • Central Boston to Boston Logan International Airport is approximately 8 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a taxi.

      • Taking public transport? You can expect a journey time of around 25 minutes.

      • Booked an early flight from Boston Logan International Airport to San Salvador Airport? Avoid rushing to the terminal (and get some extra shut-eye) by picking one of these hotels near BOS:

      Arriving at San Salvador Airport (SAL)

      When to fly to San Salvador Airport (SAL)

      • July is the most popular month for flights from Boston Logan International Airport to San Salvador Airport. To avoid the crowds, visit San Salvador in March.

      • The warmest month in San Salvador is March, with the temperature ranging between 19ºC (66ºF) and 35ºC (95ºF). Book your flights from Boston Logan International Airport to San Salvador Airport in this month if you like this kind of weather.

      • Search for cheap tickets from BOS to SAL in December if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 16ºC (61ºF) and 32ºC (90ºF) on average.

      Explore more of El Salvador

      • San Salvador has plenty going for it, but there are so many other parts of El Salvador you should also see. About 8 kilometres north-east of San Salvador, a visit to Soyapango will keep you on the go. Don't miss top attractions like Teleferico San Jacinto, Chantecuán Ecological Park and Aviation Museum.

      • Santa Ana is another must-experience destination in El Salvador and is around 48 kilometres north-west of San Salvador. No trip is complete without a visit to Parque Nacional El Imposible, Santa Ana Cathedral and San Jorge Ecological Park.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.