BOS - SAL

Find cheap flights from Boston to San Salvador

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Salvador

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Salvador, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Salvador, as well as popular online travel agencies
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Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to San Salvador that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to San Salvador

Avianca Logo
BOS-SAL
5h 50mdirect
Avianca Logo
SAL-BOS
5h 10mdirect
Avianca
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to San Salvador flights

Get data-powered insights and trends into flights from Boston to San Salvador to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to San Salvador?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to San Salvador, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to San Salvador is September, where tickets cost C$ 516 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is C$ 1,209 and C$ 856 respectively.

Can I save money by flying with a layover from Boston to San Salvador?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of C$ 418, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Boston to San Salvador?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to San Salvador, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to San Salvador, you should book around 4 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.


Good to know

Low seasonOctober
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (68% more expensive on average)

When to book flights from Boston to San Salvador

Are your dates flexible? Find out the best times to travel from Boston to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to San Salvador

  • Which airlines offer Wi-Fi service onboard planes from Boston to San Salvador?

    Delta, JetBlue, Alaska Airlines, and Aeromexico offer inflight Wi-Fi service on the Boston to San Salvador flight route.

  • Which aircraft models fly most regularly from Boston to San Salvador?

    The Airbus A320neo is the aircraft model that flies most regularly on the Boston to San Salvador flight route.

  • Which airline alliances offer flights from Boston to San Salvador?

    Star Alliance is the only airline alliance operating flights between Boston and San Salvador.

  • On which days can I fly direct from Boston to San Salvador?

    You can catch a direct flight from Boston to San Salvador on on Monday, Wednesday, Friday, and Sunday.

  • How does KAYAK find such low prices on flights from Boston to San Salvador?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San Salvador.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San Salvador?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Salvador from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to San Salvador?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Salvador with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San Salvador?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Salvador from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to San Salvador

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 402 or less round-trip.

Prefer to fly direct from Boston to San Salvador?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to San Salvador El Salvador Intl.
Find which airlines fly direct from Boston Logan Intl Airport to San Salvador El Salvador Intl Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to San Salvador El Salvador Intl

Monday

Avianca

Avianca

Wednesday

Avianca

Avianca

Friday

Avianca

Avianca

Sunday

Avianca

Avianca

See more nonstop flights

Direct returns

San Salvador El Salvador Intl to Boston Logan Intl

Monday

Avianca

Avianca

Wednesday

Avianca

Avianca

Friday

Avianca

Avianca

Sunday

Avianca

Avianca

See more nonstop flights

Reviews of the top airline flying from Boston to San Salvador

 
See real verified KAYAK customer reviews for airlines flying from Boston to San Salvador. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to San Salvador? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
AviancaOverall score based on 2388 reviews
5.1Food
7.3Crew
5.4Entertainment
7.0Boarding
6.4Comfort
Airline reviews

No food, terms when selling are not clear. To pricy for the service in general

2.0 MediocreAnonymous, Jul 2025BOG - MEX
Read more Avianca reviews

No food, terms when selling are not clear. To pricy for the service in general

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

Flight to Bogotá delayed by 3 h Missed connection from Bogotá to Guayaquil. Avianca unable to bring us to Baltra on time Overall delay 36h. We missed boat departure from galagos. Overall 10 day trip needed to be cancelled. Avianca was completely un-professional.

I receive a service for what I pay, so it is fair.

i think the flight was late because they were so strict about measuring everyone's personal items to try and charge them $119. It was really petty and made us late.

A few years ago long flights 6 hours or so used to have video screens and they offered ear phones. The food cart used to come and drinks. Now absolutely nothing. Avianca is as bad as Spirit Airlines. Avianca will now be my last choice when booking my next flight.

Terrible, We had to stay in Bogota for two days due to weather but the airline did not provide for the same day flight. Only two days later

There isn't much space in-between seats and even water needs to be paid for during the flight.

We did not know about the bag fees until check in. They are way too high. It’s insane. We also had a huge delay and everything costed extra which was very annoying.

Everything you need to know for your flight from Boston to San Salvador

Information on your arrival and departure airports

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