$343 Find Cheap Flights from Boston to El Salvador - Compare and Save

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Price, demand and travel trends for Boston to El Salvador flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Boston to El Salvador cheaper or more expensive than last year?

Fares from Boston to El Salvador are running about 5% higher than they were around this time last year, averaging $554 round-trip.

What are the cheapest fares from Boston to El Salvador right now?

The cheapest fare from Boston to El Salvador in the last week was $608 round-trip, to San Salvador El Salvador Intl (SAL).

What’s the cheapest month to fly from Boston to El Salvador?

January is the cheapest time of year to fly, with average fares of $453. Prices are highest in December, when average flight costs increase to around $757.

When is the best time to book flights from Boston to El Salvador?

Book your flights 22 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 24% compared to booking last-minute (within 2 weeks of departure).

Which airport in El Salvador is the cheapest to fly to from Boston?

All flights from Boston to El Salvador arrive at San Salvador El Salvador Intl (SAL). On average, round-trip fares are around $587.

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

Saturday tends to be the cheapest day to fly from Boston to El Salvador, while Tuesday is the most expensive. Fares run about 11% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Boston to El Salvador?

Data from the past 12 months shows it's cheapest to fly to El Salvador during the evening with average prices of $542. The night is the most expensive time to fly, with average prices of $747.

Key details for Boston to El Salvador flights

Low season

September

Cheapest flight

$343
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 20% increase in travelers.
One-way flight from Boston to San Salvador

Your Boston to El Salvador flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Boston to El Salvador?

    Fares from Boston to El Salvador are around their usual level right now. A round-trip under $465 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch price changes.

  • How much should I budget for a flight from Boston to El Salvador?

    Over the past 12 months, round-trip fares from Boston to El Salvador have ranged from $465 to $703.

  • What are the main airports serving El Salvador?

    Flights to El Salvador use two main airports, San Salvador Ilopango (ILS) and San Salvador El Salvador Intl (SAL).

  • What airlines fly nonstop from Boston to El Salvador?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Boston to El Salvador: Avianca.

  • Where in El Salvador can I fly nonstop from Boston?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from Boston to San Salvador.

  • Is it cheaper to fly with a layover from Boston to El Salvador?

    Yes. Nonstop flights from Boston to El Salvador average $584 over the past 12 months. Flights with a layover can cost less, cheapest when connecting through Fort Lauderdale (FLL) (avg. price $532) or Panama City Tocumen Intl (PTY) (avg. price $571).

  • How long is a flight from Boston to El Salvador?

    Flights from Boston to El Salvador take 5h 35m on average.

  • How often are flights from Boston to El Salvador delayed and what's the average delay?

    16% of flights on this route are delayed by at least 15 minutes. The average delay is 2h 11m.

  • Which cabin classes are available on flights from Boston to El Salvador?

    On flights from Boston to El Salvador you can book Economy Class, Business Class or First Class.

  • What are the earliest and latest flights from Boston to El Salvador?

    The earliest nonstop flight from Boston to El Salvador departs at 3:40 pm and the latest departs at 4:40 pm. Nonstop flights take about 5h 35m.

  • 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.

Your guide to booking Boston to El Salvador flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 22 weeks before your trip. KAYAK data shows fares in this window are around 24% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Saturday is usually the cheapest. Flights on Tuesday cost about 11% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in San Salvador, which is the most popular destination in El Salvador. From there, it's easy to continue on to other popular destinations such as Acajutla, La Libertad and La Herradura.
  • If you want the shortest trip, choose the Boston to El Salvador nonstop route. If you'd rather save money, the route via Fort Lauderdale (FLL) is usually the cheapest.
  • 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.
7.8
DeltaOverall score based on 8690 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
Airline reviews

Boarding was delayed by an hour and then we proceeded to sit on the tarmac for another 30-40 minutes. No clear explanation was ever given and the delay caused me to miss my connecting flight home. Was forced to stay the night in the connecting city which impacted my following workday and cause personal issues at home as well.

2.0 MediocreNathaniel, Oct 2026
Read more Delta reviews

Boarding was delayed by an hour and then we proceeded to sit on the tarmac for another 30-40 minutes. No clear explanation was ever given and the delay caused me to miss my connecting flight home. Was forced to stay the night in the connecting city which impacted my following workday and cause personal issues at home as well.

Good flight — left on time due to on time arrival of Pittsburgh flight

Delta keep on impressing me. Right now Delta airline is the best of them all

Good but since we got in early we had to wait on runway for our gate. That was kind of a bummer but we still got in earlier than planned For entertainment I was watching a movie and getting close to the end of it with 15 min left but it kept jumping automatically to the next movie before finishing.

13 hour delay stuck in Detroit and missed a day of meetings. It was terrible

Great crew. Comfortable seating. Nice overhead bin space. My app didn't allow me to check in for my flight to BOS. When I called Support, they didn't fix it, but just told me to check in at the airport. Seat back entertainment was great. Could be better if the audio could connect to Bluetooth.

The cabin was definitely dated, but that's about par for the course. The flight crew were wonderful as always (always a Delta highlight), but the boarding process was slow with little direction or encouragement to get people in their seats quickly since we were already delayed.

Totally organized, quick boarding, professional staff and ON TIME! Good size seats in the cabin Wonderful experience

The flight was delayed to board, then delay in landing and extremely bumpy landing.

Could have been on time and not missed my connection

It is not a good experience with Copa Airlines: flight delay, luggage delay, etc.

We where skipped for this flight will not head to Panama until tonight..

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.

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

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

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

the planes are not modern there are no phone chargers

As usual, the flight with normal legroom was not very comfortable, but the second flight was much better because we had paid for extra legroom. It was very nice to check our bags without an extra fee.

⭐ Absolutely AWFUL Experience with United Airlines! If I could give United Airlines ZERO stars, I would. The seats have practically NO legroom, making the flight feel like being crammed into a tin can with nowhere to move. Comfort? Forget about it! And the fees? Absolutely ridiculous! They seem to charge you for EVERYTHING. You pay for your ticket, then get hit with extra charges for things that should be part of a decent flying experience. What’s next, charging passengers for breathing? Flying with United feels less like being a valued customer and more like being a walking wallet. The seats are uncomfortable, the legroom is pathetic, and the constant nickel-and-diming is infuriating. For the price you pay, you would think they could at least provide a little space to stretch your legs and a travel experience that doesn’t leave you feeling ripped off. Do yourself a favor and look at other airlines before booking with United. I certainly won’t be rushing to fly with them again. Absolutely disappointing from start to finish!

Flight was very smooth from Boston. But when we got to Houston, the gate was not open and we waited on the runway for over 30 min!!

My flight from Boston to SFO was fine. Crew was friendly and helpful. Food was mediocre. Fright from SFO to MNL was not as good. My flight attendant was friendly but didn’t seem to have a lot of experience. She seemed overwhelmed. Also, this was the only red eye business class flight I’ve flown which only served dinner 2 hours after takeoff in a 13 hr flight. When I woke up 1 hr before landing, everyone was eating so I assumed bkft was being served. I pushed my button for help and no one came so I approached my flight attendant and she said they don’t serve bkft but she gave me choices for lunch or dinner. I routinely fly business class but I was disappointed with the lack of service and attention I was given on this flight. Also, most airlines will offer a snack or coffee before bkft is served but this was not offered during this flight. Overall, it was disappointing.

Horrible on the chicago end. They change hates then there is a plane at the new gate so we can’t pull in. Then that plane has mechanical issue and needs to be pulled back to the gate but we can’t get to another new gate due the other plane being in the way. Horrible gate management which will cause many customers to miss connections.

Very disappointing that on an international business class flight they would not give me access to the lounge in Boston. They said it was because it was a codeshare flight. International business class should include lounge access regardless of codeshare.

Great, except the canon was so cold. Even the flight attendants put jackets on

The app logs you out right when you are boarding requiring all passwords and reservation number for the flight. Super annoying

The pre-order only approach for fresh food is really challenging

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

Boston sucks. Everything after 4p is delayed. AA switched planes on us so we ended up being 1.5 hours late (plus the delay at Logan). Not sure why the airline says it is on time until 1 h before the flight and then it becomes a rolling delay when they knew the incoming flight was arriving after our scheduled departure time. The crew was great as were the gate agent and ground crew. Just operations that sucked.

Flight was 2 hr late but at least I was upgraded to first class

I've flown American several times this summer and I have yet to get a flight that leaves on time. However, a delay is better than a cancel. So far I have had four canceled flights and two delayed flights

The flight was delayed in 30 minute increments for a total of 4 hours and 30 minute delay. All other flights to Chicago left on time except for this one flight. If there is an issue with the inbound flight, just let customers know so they can find another flight right away, Once we got on the plane there was another 30 minute delay taking off at 10:30 at night which is very unusual that a flight wouldn't be ready to take off

They have overselled the ticket and kicked me out from boarding, All my Plans were collapsed and important network meeting missed.also I booked direct flight i have to go through an 1 stop and it was frustrated.

Horrific. We were delayed due a flight attendant stuck in traffic en route to the airport. Over 100 people were then stuck in Charolette. Then I ran to make my layover only to find that my connection didn’t have a plane anymore. Waited 2.5 hours without any updates. On the flight we had to beg for even a pretzel option.

Because I bought my ticket from Underpricer, I could not check in online. I could only check in at the airport and that was deeply frustrating because I had to arrive very early. The flight also departed 45 min late and passengers were given no explanations about why we were delayed. I was worried I would miss my connecting flight. Once on board, however, the flight was fine.

Terrible boarding and first class experience. Nice staff but overall disorganized, dirty plane.

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

Early departure meant on time arrival. Only real problem was free internet had issues, although chatting with the internet help desk (you can do this via aainflight.com) got the issue resolved.

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

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

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

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

Flew with our two children. Paid $380 to check two bags (one was overweight). They then left the bags behind on Sunday, December 21st, with all our family’s clothes and family Christmas presents. When we arrived at our destination they told us the bags had not arrived, and they thought (but didn’t know) they were still in Boston, but that there’d be a flight the next day and the bags would arrive the next day. The next day we found out there was no flight, now we’re hoping we get our bags before we fly back out. Meanwhile, trying to get any engagement or accurate information is a waste of time. The folks at the call center are just gatekeepers, who can’t connect with any departments that actually do things to solve a problem. Getting information is made deliberately difficult. My biggest regret is that I’ve had a number of awful experiences with Avianca traveling between the US and Colombia, and still let myself get suckered into buying these tickets because the schedule was great. Never again.

We were not aware carry-on bags cost extra until we arrived at the airport so, we were charged $240.00 for two small carry- on bags! There was a substantial fee for drinks and snacks. No wifi, or other entertainment was available. Waiting areas were crowded and uncomfortable.

Ok, but these people don’t give you nothing no snack no water

No water for a 5 hour flight entertainment not working seats with little room for knees when person in front of me reclined kept bumping my knees.

Flight departure late. Got late in Colombia making us take a different flight next day. Avianca airport crew messed up my ticket so when a I got in Brazil I didn’t have a ticket for my destination. Had to buy a new ticket out of my pocket.

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