Question 1

What are the cheapest airlines flying from San Salvador to London Heathrow Airport round-trip?

Accepted Answer

Currently priced at £656, KLM will fly you from San Salvador to London Heathrow Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from £790 and £797, respectively. Users have found that KLM is 5% cheaper than the other options available to this destination.

Question 2

How far ahead should I book a flight from San Salvador to London Heathrow Airport?

Accepted Answer

The best time to book flights from San Salvador to London Heathrow Airport is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 3

What is the cheapest month to book a flight from San Salvador to London Heathrow Airport?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from San Salvador to London Heathrow Airport (average of £112). Flying from San Salvador to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 4

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

Accepted Answer

Travellers seeking maximum savings on their San Salvador to London Heathrow Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 5

E

Accepted Answer

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Question 6

E

Accepted Answer

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 7

What is the cheapest day to fly round-trip from San Salvador to London Heathrow Airport?

Accepted Answer

Saturday is generally a great day to depart. Flying on this day could help you save up to 73%.

Question 8

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

Accepted Answer

To save on the cost of your flight from San Salvador to London Heathrow Airport, book at least 36 days before your planned departure. Booking around this time can save you about 17% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £575 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £682.

Question 9

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from San Salvador in September are about £657 on average during September, but can be found for as low as £551.

Question 10

What is the cheapest time of day to fly from SAL to LHR?

Accepted Answer

It’s typically best to fly out from San Salvador to London Heathrow Airport at midday. Doing so could potentially save you 45% on the flight price compared to flying in the afternoon, which is usually more expensive.

Question 11

What airport do you fly from for flights from San Salvador to London Heathrow?

Accepted Answer

Located just 20.5 mi from the city center, San Salvador El Salvador Intl is the airport most travelers will use when flying to London Heathrow from San Salvador. Booking flights from El Salvador Intl (SAL) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.

Question 12

Can I find deals for flights from San Salvador to Heathrow that include hotel bookings?

Accepted Answer

Yes. In addition to deals on San Salvador to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 13

How can I find direct flights from San Salvador to Heathrow?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Salvador to Heathrow.

Question 14

Can I find deals for business class flights from San Salvador to Heathrow?

Accepted Answer

Yes. Cheapflights offers flight deals from San Salvador to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 15

How does Cheapflights help users find flights from San Salvador to Heathrow?

Accepted Answer

Cheapflights makes it easy to find San Salvador to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 16

Why should you use Cheapflights to find cheap flight tickets from San Salvador to Heathrow?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from San Salvador to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 17

Can Cheapflights find flights from San Salvador to Heathrow with no change fees?

Accepted Answer

Need flexible booking options for your flight to Heathrow from San Salvador? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 18

Can Cheapflights notify me if prices for flights from San Salvador to Heathrow become cheaper?

Accepted Answer

Yes! Start tracking prices for San Salvador to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Round-trip from	£566
One-way from	£258
Popular in	December
Cheapest in	August
Average price	£815

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£549	Average£596	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Iberia	Cheapest£789	Average£879	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Cheap flights from San Salvador to London Heathrow Airport from £258

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from San Salvador El Salvador Intl to London Heathrow are usually found in August or September, booked 68 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from San Salvador to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Salvador to Heathrow

Cheapest flights from San Salvador to HeathrowExplore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Explore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Salvador to London Heathrow Airport that are best for you.

Best time to book a flight from San Salvador to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Salvador with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Salvador to London Heathrow Airport

How far ahead should I book a flight from San Salvador to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from San Salvador to Heathrow. Price data was last updated on 11 July 2025.

What is the cheapest month to book a flight from San Salvador to London Heathrow Airport?

What is the cheapest time of day to fly from SAL to LHR?

Find hourly flight availability from San Salvador to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 July 2025.

How much does it cost for a return flight from San Salvador to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with KLM, United Airlines, andAir Canada from San Salvador to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Salvador to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Salvador to London Heathrow?

What are the cheapest airlines flying from San Salvador to London Heathrow Airport round-trip?

Can I find deals for flights from San Salvador to Heathrow that include hotel bookings?

How can I find direct flights from San Salvador to Heathrow?

Can I find deals for business class flights from San Salvador to Heathrow?

What is the cheapest month to book a flight from San Salvador to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Salvador to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from San Salvador to Heathrow

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Salvador to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from San Salvador to Heathrow?

Can Cheapflights find flights from San Salvador to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from San Salvador to Heathrow become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Salvador to Heathrow
Explore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.