LHR - SAL

£327 Find Cheap Flights from London Heathrow Airport to San 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 Heathrow to San Salvador departing on 12/1. 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

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 London 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 London to San Salvador, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Heathrow to San Salvador (LHR-SAL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow 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 return flight deals from Heathrow to San Salvador

Mon, 10 Nov - Sat, 22 Nov
 Logo
16:35 - 06:30LHR-SAL
19h 55m1 stop
 Logo
22:40 - 20:10SAL-LHR
15h 30m1 stop
Thu, 5 Mar - Thu, 26 Mar
 Logo
20:00 - 06:30LHR-SAL
16h 30m1 stop
 Logo
08:05 - 06:20SAL-LHR
16h 15m1 stop
Wed, 22 Oct - Mon, 10 Nov
 Logo
12:55 - 06:30LHR-SAL
24h 35m1 stop
 Logo
08:05 - 09:20SAL-LHR
19h 15m1 stop
Tue, 28 Oct - Tue, 4 Nov
 Logo
06:00 - 20:05LHR-SAL
20h 05m2 stops
 Logo
08:05 - 16:20SAL-LHR
26h 15m2 stops
Tue, 28 Oct - Tue, 4 Nov
Avianca Logo
21:40 - 15:40LHR-SAL
24h 00m1 stop
Avianca Logo
12:05 - 14:35SAL-LHR
20h 30m1 stop
£570Avianca
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Avianca Logo
22:05 - 09:15LHR-SAL
18h 10m1 stop
Avianca Logo
10:15 - 15:35SAL-LHR
22h 20m1 stop
£571Avianca
Find Deal
Sun, 8 Mar - Thu, 26 Mar
United Airlines Logo
07:30 - 21:47LHR-SAL
20h 17m2 stops
United Airlines Logo
05:55 - 07:30SAL-LHR
19h 35m1 stop
£600United Airlines
Find Deal
Fri, 24 Oct - Mon, 10 Nov
United Airlines Logo
10:00 - 20:17LHR-SAL
17h 17m1 stop
United Airlines Logo
23:54 - 05:55SAL-LHR
24h 01m2 stops
£622United Airlines
Find Deal
Thu, 25 Dec - Fri, 16 Jan
Lufthansa Logo
12:05 - 21:51LHR-SAL
15h 46m1 stop
Lufthansa Logo
06:55 - 10:15SAL-LHR
21h 20m1 stop
£661Lufthansa
Find Deal
Sun, 7 Dec - Thu, 25 Dec
Air Canada Logo
12:10 - 20:15LHR-SAL
38h 05m2 stops
Air Canada Logo
08:15 - 11:25SAL-LHR
21h 10m2 stops
£695Air Canada
Find Deal

Everything you should know

Top airlines
Avianca
Cheapest • from £570 (return)
KLM
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 11% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£476
Typical prices: £577-645
Multi-carrier
Mon 10/11Sat 22/11
LHR - SAL • 1 stop
Cheapest one-way flight
£327
Typical prices: £442-453
Multi-carrier
Mon 12/1
LHR - SAL • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Salvador!
Booking Insights

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

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

How much is a return flight from London Heathrow Airport to San Salvador?

What’s the cheapest day of the week to fly from London Heathrow Airport to San Salvador?

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

If you are looking for a flight deal from London Heathrow Airport to San Salvador, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from San Salvador, Sunday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from London Heathrow Airport to San Salvador?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport 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 London Heathrow Airport to San Salvador is March, where tickets cost £561 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £761 and £705 respectively.

How far in advance should I book a flight from London Heathrow Airport 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 London Heathrow Airport 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 London Heathrow Airport to San Salvador, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to San Salvador

Low seasonJune
Cheapest flight£327
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (6% more expensive on average)
Flight from London Heathrow Airport to San Salvador

When to book flights from Heathrow to San Salvador

Are your dates flexible? Find out the best times to travel from Heathrow to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 London Heathrow Airport to San Salvador flights

  • What is the cheapest flight from London Heathrow Airport to San Salvador?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to San Salvador was £444 for a one-way ticket and £647 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to San Salvador?

    London Heathrow Airport and San Salvador are both served by 1 main airport. You will leave London Heathrow Airport from London Heathrow and will be arriving at San Salvador El Salvador Intl.

  • Which aircraft models fly most regularly from London Heathrow Airport to San Salvador?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to San Salvador?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between London Heathrow Airport and San Salvador, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from London to San Salvador, KLM or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to San Salvador are KLM and United Airlines. With an average price for the route of £582 and an overall rating of 7.8, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of £609 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 London Heathrow Airport to San Salvador.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport to San Salvador?

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

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

Reviews of the top 5 airlines flying from Heathrow to San Salvador

 
See real verified KAYAK customer reviews for airlines flying from London 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 Heathrow 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.
7.8
KLMOverall score based on 1385 reviews
7.3Food
7.8Boarding
7.7Comfort
8.4Crew
7.2Entertainment
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

For both flights I requested a gluten free meal, they didn’t have one nor were there other options.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

Our seats were all the way in back of the plane,

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

W ended up getting stuck in Edinburgh Scotland during the air strike. They cancelled our flight and No help to get us rebooked. All said down that cost us over $2,000 extra at least to get home. Hopefully we will be reimbursed somehow! Won’t be flying Air Canada again

It was good except I was sitting beside a bigger gentleman so I didn’t have much room

The 787 Dreamliner that we flew on was relatively new and a nice aircraft. We flew on a 777 which was noticeably older and the seats were average” but the 787 was very nice, especially for the price. No window blinds anymore, instead high tech adjustable polychromatic glass!! Nice.

an absolute disaster and nightmare on air condition. IT WAS FREEZING!! everyone around us had hats, hoodies, gloves outdoor jackets on. that segment of the aircraft had a fault I assume...no amount of suggestion to turn down the air con helped. otherwise all good.

Everything was very good, short delay Toronto to Regina on my return to Canada but not a big deal. Thanks Kayak, Dr. Ian Stewart

Boarded smoothly, took off on time. Entertainment screens were reliable and the movie library is abundant. Food better than wtst was served on the first leg of the journey by another airline.

Check in was incredibly fast, fukuoka was comfortable and crew very pleasant. The only negative was that the boarding was somewhat chaotic, but it so often is these days as airlines tend to board by how much you pay and not by what an orderly process of filling the plane would be.

It was ok. Even after the airport bus took us to the terminal , we did not expect to walk 35 mins inside the airport to the gate . A 15 min walk is ok . Especially if there was any delay in TSA check which happens to is too then people can easily miss the flight.

Excellent bit seats are still a little too small and there's that $75 baggage charge.

Very disappointed with how we left Heathrow, and the service from Air Canada. When food was given, I was skipped by the attendant, and when I went to tell him, he just dropped the tray of food on my table. Leaving Heathrow and landing in Montreal were bad, which is not Air Canada’s fault, but the service itself was not good.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

The food could be better, more snacks. And have some plugs to chargue the phone.

It was as good as a flight in economy can be.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

The plane was late (as was my flight out from Birmingham the day before)

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

The flight was delayed by an hour. Made the connection uncomfortably tight.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

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

Usb plugs for charging your phone does not work in every flight. uncomfortable chairs even in higher categories.

The usb plugs for charging your phone didn’t work, the seats were coarse and hard. Not very comfortable. No inflight WiFi

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

why did we have to go through security mid flight

The chicken that was served in business class was cold!

Late departure. When the flight arrived in Medellin the plane sat at the gate for 20 minutes waiting for a bus for us to get off the plane.

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

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.

The seats were very uncomfortable. I would have upgrade or got different flight if I knew. I usually sleep in the plane but I couldn’t sleep at all. Very uncomfortable. Also no food or drink everything was to purchase, and that’s u usual for international flight.

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

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