£593 Find Cheap Flights from El Salvador to London Heathrow Airport

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 7/9. 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 London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Cheap Flights from El Salvador to Heathrow

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

Sun, 7 Sep - Tue, 23 Sep
 Logo
01:22 - 18:50SAL-LHR
34h 28m3 stops
 Logo
06:00 - 06:30LHR-SAL
31h 30m2 stops
Sun, 28 Sep - Sun, 5 Oct
KLM Logo
13:34 - 13:30SAL-LHR
16h 56m1 stop
KLM Logo
17:25 - 12:10LHR-SAL
25h 45m1 stop
£648KLM
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Wed, 5 Nov - Mon, 17 Nov
Avianca Logo
08:30 - 14:35SAL-LHR
24h 05m2 stops
Avianca Logo
21:40 - 16:25LHR-SAL
24h 45m1 stop
£746Avianca
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Wed, 10 Sep - Tue, 16 Sep
Air Canada Logo
15:30 - 06:35SAL-LHR
32h 05m2 stops
Air Canada Logo
15:50 - 12:06LHR-SAL
27h 16m2 stops
£764Air Canada
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Fri, 7 Nov - Fri, 6 Feb
Air Canada Logo
08:15 - 06:30SAL-LHR
16h 15m1 stop
Air Canada Logo
14:15 - 20:15LHR-SAL
36h 00m2 stops
£787Air Canada
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Sun, 24 Aug - Sat, 6 Sep
United Airlines Logo
02:00 - 11:10SAL-LHR
26h 10m1 stop
United Airlines Logo
07:25 - 20:17LHR-SAL
19h 52m2 stops
£794United Airlines
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Sun, 24 Aug - Sat, 6 Sep
United Airlines Logo
02:00 - 07:25SAL-LHR
22h 25m2 stops
United Airlines Logo
07:25 - 20:17LHR-SAL
19h 52m2 stops
£797United Airlines
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Mon, 1 Dec - Mon, 8 Dec
Avianca Logo
10:15 - 14:35SAL-LHR
22h 20m2 stops
Avianca Logo
21:40 - 16:35LHR-SAL
24h 55m3 stops
£962Avianca
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Fri, 27 Jun - Sun, 3 Aug
Iberia Logo
12:30 - 10:35SAL-LHR
15h 05m1 stop
Iberia Logo
12:15 - 19:56LHR-SAL
14h 41m1 stop
£1,095Iberia
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Thu, 3 Jul - Wed, 9 Jul
Iberia Logo
12:30 - 09:25SAL-LHR
13h 55m1 stop
Iberia Logo
12:15 - 19:56LHR-SAL
14h 41m1 stop
£1,342Iberia
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KAYAK's insights & trends for flights to Heathrow

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

What is the cheapest month to fly to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London Heathrow Airport, 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 to London Heathrow Airport is August, where tickets cost £561 on average for return flights. On the other hand, the most expensive months are June and May, where the average cost of tickets from El Salvador is £852 and £804 respectively. For one-way flights, the best month to travel is August with an average price of £561.

How far in advance should I book a flight to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London Heathrow Airport, 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

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

Low seasonJanuary
High seasonOctober
Cheapest flight£287
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 16% lower on average.
Flight from San Salvador to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • How far is London Heathrow Airport from central London?

    London Heathrow Airport is 14 miles from the centre of London.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Sunday where round-trip tickets can be as cheap as £613. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £1,061 on average.

  • How does KAYAK find such low prices on flights to London Heathrow Airport?

    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 to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to London Heathrow Airport?

    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 London Heathrow Airport 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 to London Heathrow Airport?

    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 London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to London Heathrow Airport?

    The cheapest time of day to fly to London Heathrow Airport is generally in the afternoon, when round-trip flights cost £829 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is £1,501.

  • How many direct flights to London Heathrow Airport are there each week?

    Each week there are around 351 direct flights from within El Salvador to London Heathrow Airport. The most common day for departures is Friday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to London Heathrow Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Top airlines flying from El Salvador to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from El Salvador to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Heathrow? 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 8790 reviews
8.1Crew
6.6Food
7.3Comfort
7.0Entertainment
7.7Boarding
Airline reviews

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

4.0 OkayJ, May 2025ORD - EDI
Read more United Airlines reviews

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

get E+, a must for 5 hours flight if you are tall

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Food and flight attendents with positive dispositions and friendly behavior, more professional attitudes

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Great. Food going from Australia to the US was better than other way around, but still needs improvement in terms of quality and quantity!!!

Fight was delayed an hour due to operational issues ,then further delayed due to ground control for a total of about 1.30 hours. Salad was completely frozen and flatware was so cold you could barely handle it. Crew was friendly and professional and the flight was smooth. The aircraft was clean and well-serviced.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

The flight was delayed so the people from a late connecting flight was able to still make the connection.

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

From boarding, to attention in flight, I couldn’t fault it.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

The flight was delayed twice. When the crew explained about the debris causing flat tires, I was glad they took the time to change all four.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

They cancelled the flight)(they said bad weather but many other flights took off) and made us wait 5 hours in line to figure out what to do. We ended up making a new flight the next day on another airlines...I hope they honor giving us our money back

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

The seats were way too crowded. Just because I do not have the luxury of a suite, does not mean that I want to fly from Austin to London scrunched between two people and the seat in front of me in my face. Ridiculous. I should have flown with Turkish Airlines...

Very good service from San Jose to Madrid . Ryanair service from Madrid to Brussels 😕

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Luton
Swindon
Northampton
Southend-on-Sea
Winchester
Slough
Croydon
Stansted
Poole
Chichester
Folkestone
Maidstone
Colchester
Salisbury
Crawley
Chelmsford
Bedford

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London

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