BOS - SAL

Find cheap flights from Boston to San Salvador

1 adult
1 adult, Economy, 0 bags

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
Multiple Airlines
Sun 8/2
BOS - SAL • multi-stop
Cheapest one-way flights
Multiple Airlines
Sun 8/2
BOS - SAL • multi-stop
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 5% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 30% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
4 days a week
There are direct flights from Boston to San Salvador 4 days a week: Mon, Wed, Fri, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Salvador!
Flight Deals
Booking Insights
Flight 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

Multiple Airlines Logo
BOS
-
SAL
5877 kmmulti-stop
Multiple Airlines Logo
SAL
-
BOS
5877 kmmulti-stop
Multiple Airlines
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 October, where tickets cost C$ 461 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 1,037 and C$ 738 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 494 on average.

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 2 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJune
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly (64% 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?

    All the following airlines offer inflight Wi-Fi service on the Boston to San Salvador flight route: GOL, Delta, JetBlue, Alaska Airlines, Aeromexico, and American Airlines.

  • 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$ 491 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.
6.5
AviancaOverall score based on 2496 reviews
6.2Comfort
6.9Boarding
5.4Entertainment
5.0Food
7.2Crew
Airline reviews

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral

2.0 MediocreAnonymous, Jan 2026
JFK - BOG
Read more Avianca reviews

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral

I actually upgraded to the medium level of seats from basic and even doing that it may have been physically the most uncomfortable flight I have ever had. They packed everyone like is a train to death camp. It was a red eye so I hoped to get some sleep but it was physically impossible to find a comfortable way to rest. I met other folks on the same flight and they said the same thing. It was an utterly miserable flight and if I have any other options I will never fly with them again

Boarding was late due to the company’s that cleaned the aircraft (very poorly done) and the catering company. The entertainment system was not working for this six hour flight, uncomfortable seats in business (barely any cushion or recline). The airline staff is very good but the planes are horrible and not well maintained.

Deplaning was a mess, I sat in business (seats are horrible) and the front door had a problem so we had to deplane from the rear exit. The stairs were not tall enough to reach so there was a large step down from the plane to the top of the stairs.

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

We waited for one hour to deboard the plane after landing. That could be better

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

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

Information on your arrival and departure airports