We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to San Salvador El Salvador. You can choose from five airlines. At the moment, 14 / Jan / 2026 is the cheapest date to travel, but scroll through the results to find the option that works best for you.
Iberia Airlines is the most popular airline that flies from London Heathrow to San Salvador El Salvador. But it's still worth looking at other options, as there are 60 flights to San Salvador El Salvador every week. If you want to broaden your search, look at flights departing from other airports.
Generally speaking, the flight from London Heathrow to San Salvador El Salvador takes around 16 hrs 45 mins. The fastest flight takes 15 hrs 5 mins to cover the 8753 km distance. You can view all flight times yourself in the results list.
August is normally the cheapest month to fly to San Salvador El Salvador, but it’s important to try different options when you search. Searching by month, for instance, will show you the best time of the week to fly. December is always the most expensive time to fly but, if you check regularly and book early, you have a better chance of getting a good deal.
