LHR - SAL

£354 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 20/1. 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, 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 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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Everything you should know

Cheapest return fare
£505
Overall average: £597
United Airlines
Wed 21/1Fri 30/1
LHR - SAL • 1 stop
Cheapest one-way flight
£354
Typical prices: £452-£520
Multiple Airlines
Tue 20/1
LHR - SAL • 2 stops
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 1% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 10% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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!
Flight Deals
Booking Insights
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

Wed, 21 Jan - Fri, 30 Jan
United Airlines Logo
15:20 - 05:45
LHR
-
SAL
20h 25m1 stop
United Airlines Logo
06:55 - 07:30
SAL
-
LHR
18h 35m1 stop
£505United Airlines
Thu, 22 Jan - Thu, 29 Jan
United Airlines Logo
12:05 - 21:19
LHR
-
SAL
15h 14m1 stop
United Airlines Logo
06:55 - 10:15
SAL
-
LHR
21h 20m1 stop
£509United Airlines
Fri, 23 Jan - Fri, 30 Jan
United Airlines Logo
13:35 - 13:19
LHR
-
SAL
29h 44m2 stops
United Airlines Logo
06:55 - 10:15
SAL
-
LHR
21h 20m1 stop
£512United Airlines
Mon, 26 Jan - Fri, 30 Jan
American Airlines Logo
14:30 - 12:31
LHR
-
SAL
28h 01m1 stop
American Airlines Logo
15:21 - 12:15
SAL
-
LHR
14h 54m1 stop
£513American Airlines
Fri, 23 Jan - Fri, 30 Jan
United Airlines Logo
13:35 - 13:19
LHR
-
SAL
29h 44m2 stops
United Airlines Logo
06:55 - 09:10
SAL
-
LHR
20h 15m2 stops
£516United Airlines
Mon, 26 Jan - Fri, 30 Jan
American Airlines Logo
15:35 - 12:31
LHR
-
SAL
26h 56m2 stops
American Airlines Logo
13:31 - 11:30
SAL
-
LHR
15h 59m1 stop
£517American Airlines
Mon, 26 Jan - Fri, 30 Jan
American Airlines Logo
17:00 - 12:31
LHR
-
SAL
25h 31m2 stops
American Airlines Logo
15:49 - 19:00
SAL
-
LHR
21h 11m2 stops
£520American Airlines
Fri, 23 Jan - Thu, 29 Jan
United Airlines Logo
12:05 - 13:19
LHR
-
SAL
31h 14m1 stop
United Airlines Logo
06:55 - 07:30
SAL
-
LHR
18h 35m1 stop
£544United Airlines
Thu, 22 Jan - Mon, 26 Jan
Air Canada Logo
11:10 - 20:15
LHR
-
SAL
15h 05m1 stop
Air Canada Logo
23:25 - 08:30
SAL
-
LHR
27h 05m1 stop
£574Air Canada
Mon, 16 Mar - Mon, 23 Mar
Avianca Logo
21:40 - 21:05
LHR
-
SAL
29h 25m2 stops
Avianca Logo
08:10 - 14:35
SAL
-
LHR
24h 25m2 stops
£576Avianca
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.

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 £571 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is £755 and £686 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 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 11 weeks before departure.

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

Low seasonJune
Cheapest flight£354
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (8% 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 £354 for a one-way ticket and £505 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and San Salvador, with SkyTeam 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 £575 and an overall rating of 7.7, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of £626 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.
7.7
KLMOverall score based on 1432 reviews
7.2Food
8.4Crew
7.1Entertainment
7.8Boarding
7.6Comfort
Airline reviews

Terrible last row seats many seats available but no offer to move to better seat

2.0 MediocreAnonymous, Dec 2025
AMS - BUD
Read more KLM reviews

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

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!

Staff on board was excellent. Positive upbeat helpful- like it used to be.

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

United has come a long way, it’s been a fantastic experience traveling with them.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

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.

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

I wish they gave the earphones earlier rather than when we are already in flight.

Very nice staff members are very nice and friendly helpful

We were a little late pushing back ,but arrived a head of time.

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.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

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.

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.

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

No free snacks nor drinks on very short 30min flight. Entertainment system is over wifi to your own phone or tablet, which is good but often a show or movie just stops and refuses to continue

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

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

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.

Avianca is not what it used to be. So disappointing

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

Information on your arrival and departure airports