LHR - SAL

£429 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 9/7. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£664
Typical prices: £903-£618
Multiple Airlines
Thu 3/9Tue 15/9
LHR - SAL • 2 stops
Cheapest one-way flight
£429
Overall average: £959
Multiple Airlines
Thu 9/7
LHR - SAL • 2 stops
Top airlines
Cheapest • from £681 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Heathrow and San Salvador. You’ll need at least 1 connection.
Insights
Insights
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Insights
Top stopover airports
Cheapest • Avg £641 (return)
Shortest trip • 16h 17m (one-way)
Insights
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 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

Thu, 3 Sep - Tue, 15 Sep
Multiple Airlines Logo
08:00 - 06:30
LHR
-
SAL
29h 30m
2 stops
Multiple Airlines Logo
09:35 - 22:00
SAL
-
LHR
29h 25m
2 stops
£664Multiple Airlines
Mon, 7 Sep - Sun, 13 Sep
Multiple Airlines Logo
19:50 - 21:55
LHR
-
SAL
33h 05m
2 stops
Multiple Airlines Logo
09:35 - 10:20
SAL
-
LHR
17h 45m
2 stops
£666Multiple Airlines
Thu, 5 Nov - Sat, 14 Nov
Multiple Airlines Logo
19:55 - 08:05
LHR
-
SAL
42h 10m
2 stops
Multiple Airlines Logo
09:35 - 11:25
SAL
-
LHR
19h 50m
2 stops
£669Multiple Airlines
Wed, 4 Nov - Mon, 16 Nov
Avianca Logo
21:40 - 11:05
LHR
-
SAL
19h 25m
1 stop
Avianca Logo
12:05 - 14:35
SAL
-
LHR
20h 30m
1 stop
£681Avianca
Wed, 4 Nov - Mon, 16 Nov
Avianca Logo
21:40 - 15:40
LHR
-
SAL
24h 00m
1 stop
Avianca Logo
08:00 - 14:35
SAL
-
LHR
24h 35m
1 stop
£682Avianca
Wed, 4 Nov - Mon, 16 Nov
Avianca Logo
21:40 - 15:40
LHR
-
SAL
24h 00m
1 stop
Avianca Logo
22:20 - 14:35
SAL
-
LHR
34h 15m
2 stops
£684Avianca
Wed, 4 Nov - Mon, 16 Nov
Avianca Logo
21:40 - 06:10
LHR
-
SAL
38h 30m
2 stops
Avianca Logo
08:00 - 14:35
SAL
-
LHR
24h 35m
1 stop
£684Avianca
Wed, 4 Nov - Mon, 16 Nov
Avianca Logo
21:40 - 06:10
LHR
-
SAL
38h 30m
2 stops
Avianca Logo
08:00 - 14:35
SAL
-
LHR
24h 35m
1 stop
£685Avianca
Wed, 4 Nov - Mon, 16 Nov
Avianca Logo
21:40 - 06:10
LHR
-
SAL
38h 30m
2 stops
Avianca Logo
08:15 - 14:35
SAL
-
LHR
24h 20m
2 stops
£686Avianca
Tue, 18 Aug - Sun, 13 Sep
Lufthansa Logo
13:40 - 12:15
LHR
-
SAL
29h 35m
1 stop
Lufthansa Logo
13:50 - 21:35
SAL
-
LHR
24h 45m
2 stops
£687Lufthansa
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?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to San Salvador departing in September.

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 October, where tickets cost £600 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is £798 and £766 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 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

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

Low seasonMay
Cheapest flight£429
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (10% 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 £429 for a one-way ticket and £664 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 is the only airline alliance operating flights between London Heathrow Airport and San Salvador.

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

    The two airlines most popular with KAYAK users for flights from London to San Salvador are United Airlines and Air Canada. With an average price for the route of £685 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of £798 and an overall rating of 7.1.

  • 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 4 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.
7.4
United AirlinesOverall score based on 9828 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

2.0 MediocreAnonymous, May 2026
SFO - TPA
Read more United Airlines reviews

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

First time flying with UA and it was a great experience. Thank you

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

It as confusing with the connections and I almost missed my next flight because of the first delay with the first flight. United could have helped passengers go through immigration quicker rather than waiting with everyone else. The flight attendants were super friendly and lovely. The vegetarian food was awful- I did not finish. I would suggest they just do pasta next time

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

We travelled from London to Halifax. Customer service was excellent.fron the day we booked until arriving. The gate was only a short frombthe waiting area and walk Boarding was efficiently handled and plane took off on time. The service on the plane was very good. Fool an acceptable drandard Only downside was that the legroom was tight for anybody just over 6ft tall and am usually able to travel without difficulty. I will definitely fly with Air Canada again but next time pay for extr space.

Was disappointed when landing in Canada was made to wait for over 1 hour with several other parents and babies for our strollers . The expectation was that the gate checked strollers would be there when exiting aircraft. This was not the case we were told to walk to a point and wait for them . After being left there and not being updated we were met with very hostile and rude air canada staff . There where no apologies or understanding even though all the children where very uncomfortable and the parents very frustrated as you can imagine . Instead the air canada staff at the airport where very rude and made an already frustrating situation much worse instead of trying to assure the parents that that were making effort to fix the situation. One gentleman in particular was very rude to some parents telling them to move when they were simply seeking information. He made the other parents including myself feel very uncomfortable. He also told a gentleman he was capturing images of everyones boarding pass when this was untrue as he was only taking a photo of the gentleman pass which was strange.

It was good, seating was a little tight apart from that all was well.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

I liked the flight but the check in was horrendous. I have booked with you before but not ever had to pay extra for luggage, it was not clear on booking, I didn't know there was different categories of economy that meant different allowances. So was alarmed when we had to pay a further £120 at the check-in at a point of not changing.

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

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Excellent service. The crew goes above their way to make the customer comfortable.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

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.

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 employees at the gate were not communicating, they preferred to give the upgrade to pilots and not to the elite passengers Every flight I more disappointing, clients shooed be priority instead of other employees even if they are pilots, there was plenty room for pilots in economy

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.

After boarding, there was a small issue with the aircraft which caused a delay of about 45 minutes. During boarding and while passengers were being seated, the plane was being refueled. There were also a lot of unusual noises during the flight, which was not very reassuring. In addition, there was no WiFi or entertainment available.

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

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

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

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

We found the chairs to be really uncomfortable. It’s also really unacceptable that no form of food or drink is included in a 6+ hour flight

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.

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

Information on your arrival and departure airports