$209 Find Cheap Flights from Boston to El Salvador

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to El Salvador departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Boston to El Salvador Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to El 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 El Salvador

Sat, May 16 - Wed, May 20
Avianca Logo
8:45 am - 11:05 am
BOS
-
SAL
28h 20m
1 stop
Avianca Logo
7:45 am - 2:50 pm
SAL
-
BOS
5h 05mnonstop
$413Avianca
Thu, Jun 4 - Sun, Jun 7
Avianca Logo
8:45 am - 6:30 am
BOS
-
SAL
23h 45m
1 stop
Avianca Logo
7:45 am - 2:50 pm
SAL
-
BOS
5h 05mnonstop
$418Avianca
Wed, Sep 16 - Wed, Oct 7
Copa Airlines Logo
8:47 am - 11:34 pm
BOS
-
SAL
16h 47m
1 stop
Copa Airlines Logo
8:30 am - 11:02 pm
SAL
-
BOS
12h 32m
1 stop
$419Copa Airlines
Sat, May 16 - Wed, May 20
Avianca Logo
8:45 am - 11:05 am
BOS
-
SAL
28h 20m
1 stop
Avianca Logo
7:45 am - 2:50 pm
SAL
-
BOS
5h 05mnonstop
$428Avianca
Thu, Sep 3 - Wed, Sep 9
Delta Logo
6:55 am - 12:04 pm
BOS
-
SAL
7h 09m
1 stop
Delta Logo
1:19 pm - 1:06 am
SAL
-
BOS
9h 47m
1 stop
$431Delta
Thu, Jun 4 - Sun, Jun 7
Avianca Logo
8:45 am - 6:30 am
BOS
-
SAL
23h 45m
1 stop
Avianca Logo
7:45 am - 2:50 pm
SAL
-
BOS
5h 05mnonstop
$432Avianca
Wed, Sep 16 - Wed, Oct 7
United Airlines Logo
7:25 am - 2:30 pm
BOS
-
SAL
9h 05m
1 stop
United Airlines Logo
1:50 pm - 9:24 am
SAL
-
BOS
17h 34m
2 stops
$435United Airlines
Sat, May 23 - Mon, Jun 1
United Airlines Logo
8:26 pm - 9:35 pm
BOS
-
SAL
27h 09m
1 stop
United Airlines Logo
10:45 pm - 4:38 pm
SAL
-
BOS
15h 53m
1 stop
$437United Airlines
Sat, May 23 - Sat, Jun 6
United Airlines Logo
8:26 pm - 9:35 pm
BOS
-
SAL
27h 09m
1 stop
United Airlines Logo
3:40 pm - 9:39 am
SAL
-
BOS
15h 59m
2 stops
$442United Airlines
Fri, Sep 4 - Fri, Sep 25
United Airlines Logo
5:45 am - 11:29 am
BOS
-
SAL
7h 44m
1 stop
United Airlines Logo
3:40 pm - 11:37 pm
SAL
-
BOS
29h 57m
1 stop
$443United Airlines
Booking Insights

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

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

What is the cheapest Boston to El Salvador flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to El Salvador from Boston found in the last 72 hours was to San Salvador, at $346 round-trip. The most popular route is from Boston (BOS) to San Salvador (SAL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $346.

What is the cheapest time of day to fly to El Salvador?

The average price for all round-trip flights from Boston to El Salvador depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to El Salvador is generally in the evening, when round-trip flights cost $504 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to El Salvador is generally in the evening, which is peak travel time and where the average cost of a ticket is $504.

Can I save money by flying with a layover from Boston to El 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 2 stops layover the cheapest option at $479 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to El 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 El Salvador is September, when tickets cost $90 (return) on average. On the other hand, the most expensive months are February and July, when the average cost of round-trip tickets is $1,195 and $900 respectively.

What’s the cheapest day of the week to fly from Boston to El Salvador?

The average price of all round-trip flights from Boston to El Salvador clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to El Salvador on a Wednesday and more expensive on a Thursday. On your return trip to Boston, you should consider flying back on a Thursday, and avoid Mondays for better deals.

How far in advance should I book a flight from Boston to El 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 El 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 El Salvador, you should book around 2 weeks before departure, which saves you about 1% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$209
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 53% increase in price.
Flight from Boston to San Salvador

FAQs - booking El Salvador flights

  • Do flights from Boston to El Salvador include my frequent flyer program’s airline?

    If you want to make sure you can add miles to your frequent flyer account when you fly to El Salvador, you can use KAYAK’s Alliances filter. So if you are a member of United Airlines’ MileagePlus, you can set the Alliance filter to Star Alliance to see flights with partner airlines, such as Copa Airlines.

  • Can I bring my dog with me on my flight to El Salvador from Boston?

    Many airlines allow pets in the cabin, but you should check with the airline about conditions and fees. For example, Avianca allows passengers to bring one cat or dog onboard, if the pet is over four months old, weighs less than 22 lbs., and is kept in a carrier that can fit under the seat in front of you, among other restrictions.

  • How many bags can I bring with me aboard my flight to El Salvador?

    The luggage icons on your KAYAK search should tell you what is included in your fare. Usually, Delta tickets each include a personal item and a carry-on. Typically, a personal item is a purse or small backpack that fits in the seat in front of you, and a carry-on is a bag that can fit in the overhead bin and is no bigger than 22 x 14 x 9 inches.

  • Will I need to go through the check-in process again if I have a layover between Boston and El Salvador?

    You may see a flight you like that has one or more stops showing red triangles by the stopover cities in your KAYAK results. This indicates a self-transfer, meaning you may be required to check in again during a layover, such as with some Spirit flights connecting with Avianca in Miami. To avoid this, you can use KAYAK’s Flight filter to filter these out.

  • How does KAYAK find such low prices on flights from Boston to El 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 El Salvador.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to El Salvador 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 El 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 from Boston to El Salvador with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to El 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 from Boston to El Salvador up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to El Salvador

  • You should be able to fly nonstop from Boston to El Salvador with Avianca, but you may find more affordable options or ones that fit your schedule better with layover flights, such as with American Airlines stopping in Miami or United Airlines stopping in Washington, DC.
  • If you have a U.S. passport, you do not need a visa for flights from Boston to El Salvador if you do not plan on staying for more than three months. Your passport should have at least one blank page and be valid. Also, you may have to pay for a tourist card at immigration.
  • Need a place to relax before your flight to El Salvador? At Boston Logan International Airport (BOS), there is a Sensory/Calming Room located in Terminal E that offers interactive tactile stations, soothing music, and relaxation pods for you to have a quiet moment before boarding.
  • If you choose to fly Spirit Airlines to El Salvador, you may want to bring books or a device with content to pass the time during your flight. The airline does not offer onboard entertainment, but there usually is WiFi available, for a fee.
  • For extra space and more, you may want to book a flight to El Salvador from Boston on American Airlines’ Main Cabin Plus or Main Cabin Extra. You can get seats with more legroom, free seat selection, and early boarding privileges, as well as other extras.

Reviews of the top 5 airlines serving from Boston to El Salvador

 
Need help choosing which airline to fly with from Boston to El 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.
7.9
DeltaOverall score based on 8465 reviews
7.2Food
8.1Boarding
7.8Entertainment
8.5Crew
7.9Comfort
Airline reviews

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

6.0 GoodSilvestre, Apr 2026
MCO - GRU
Read more Delta reviews

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

I was flying business class, and the French fellow passengers were super noisy. It was not a comfortable flight. And the crew was not helpful.

Boarding was confusing from staff telling going to preboard and than to group 1 Airplane was not cooling at the beginning

Do not book it’s a scam! They stole $1200 from me

Flight got delayed; had to go through security three times.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Some of the Air hostesses are not that friendly. Need improvement

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

On time departure and early arrival. Flight attendant very nice.

This was my first time flying with you guys and my very last! This was the most horrible experience!!! There was not even tv in the plane! How cheap can this airline be!!! I paid so much for my suitcase!!! I would never fly with this airline again! The crew are very rude!

The crew was great! They waited for me as Air Canada flight was delayed by 1:15 hours from Ottawa to Toronto. I am a bit disappointed that we could only use wifi for entertainment but I survived! The only thing I would of liked is a more comfortable seat. The seat cushions are not thick enough for flights longer than 3 hours. Aside from that, everything was great.

The worst experience I've ever had because the "people" @ Avianca wouldn't let me fly because they said I needed a round trip ticket

Seating was tight. Seats don't recline. Initial flight was cancelled. Lost two days of vacation.

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

Provide free food and drinks on an international flight. Add updated head rests

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.

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

Information on your arrival and departure airports