Skyscanner

Cheap Flights from London (LHR) to San Salvador (SAL)

Travellers and cabin class

Compare London Heathrow to San Salvador flight deals

Find the cheapest month or even day of the year to fly to San Salvador

Book the best San Salvador fare with no extra fees

Flight deals from London Heathrow to San Salvador

Looking for a cheap last-minute deal or the best return flight from London Heathrow to San Salvador? Find the lowest prices on one-way and return tickets right here.
San Salvador.$1,246 per passenger.Departing Thu, 11 Sep, returning Thu, 25 Sep.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Thu, 11 Sep, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Thu, 25 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,246, select.
San Salvador.$1,247 per passenger.Departing Tue, 21 Oct, returning Tue, 4 Nov.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 21 Oct, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Tue, 4 Nov, arriving in London Heathrow.Price includes taxes and charges.From $1,247, select.
San Salvador.$1,249 per passenger.Departing Sat, 8 Nov, returning Sun, 16 Nov.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Sat, 8 Nov, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Sun, 16 Nov, arriving in London Heathrow.Price includes taxes and charges.From $1,249, select.
San Salvador.$1,250 per passenger.Departing Tue, 27 Jan, returning Sun, 8 Feb.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 27 Jan, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Sun, 8 Feb, arriving in London Heathrow.Price includes taxes and charges.From $1,250, select.
San Salvador.$1,250 per passenger.Departing Mon, 19 Jan, returning Mon, 26 Jan.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Mon, 19 Jan, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Mon, 26 Jan, arriving in London Heathrow.Price includes taxes and charges.From $1,250, select.
San Salvador.$1,262 per passenger.Departing Sun, 19 Oct, returning Fri, 24 Oct.Return flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Sun, 19 Oct, arriving in San Salvador.Inbound indirect flight with KLM, departs from San Salvador on Fri, 24 Oct, arriving in London Heathrow.Price includes taxes and charges.From $1,262, select.
San Salvador.$1,280 per passenger.Departing Tue, 26 Aug, returning Sun, 7 Sep.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 26 Aug, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Sun, 7 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,280, select.
San Salvador.$1,296 per passenger.Departing Wed, 6 Aug, returning Thu, 14 Aug.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Wed, 6 Aug, arriving in San Salvador.Inbound indirect flight with United, departs from San Salvador on Thu, 14 Aug, arriving in London Heathrow.Price includes taxes and charges.From $1,296, select.

Find the cheapest month to fly from London Heathrow to San Salvador

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to San Salvador flights are currently cheapest in September.
Jun
from $1,297
Jul
from $1,297
Aug
from $1,296
Sep
from $1,246
Oct
from $1,262
Nov
from $1,249
Dec
from $1,456
Jan
from $1,250
Feb
Find prices
Mar
from $1,296
Apr
from $1,322
May
from $1,643

London Heathrow to San Salvador: Alternative routes

Compare routes from London Heathrow to San Salvador below. You may find an airport to fly into that's cheaper, faster, or easier than San Salvador.

London to San Salvador: Flight information

The things to know before you go.
Cheapest flight found$1,246
Cheapest month to flySeptember

Finding cheap flights from London Heathrow to San Salvador: Frequently asked questions

The best price we found for a return flight from London Heathrow to San Salvador is $1,246. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London Heathrow to San Salvador. But we found flights with one or more stops from $1,246.
As of June 2025, there are no flights flying from London Heathrow to San Salvador.
The cheapest month to fly from London Heathrow to San Salvador is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to San Salvador Airport on Thursday, 11 September 2025.
No airlines currently offer direct flights between London Heathrow Airport and San Salvador Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Salvador but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Salvador is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to San Salvador.

Travelling from London Heathrow Airport (LHR) to El Salvador International Airport (SAL): what you need to know

  • San Salvador's timezone is UTC-6, making San Salvador six hours behind London.

  • To ensure you catch your LHR to SAL flight, leave enough time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Travelling during a peak month such as July? School holidays and other popular seasons can mean longer queues at airport checkpoints. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • We make it simple to book a flight with a stopover. To see all your options for tickets from London Heathrow Airport to El Salvador International Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Stopovers between LHR and SAL include:

    • Miami International Airport

    • Washington Dulles International Airport

    • Pearson International Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to El Salvador International Airport (SAL)

  • Right now, $811 is the cheapest price we've seen for a one-way London Heathrow Airport to El Salvador International Airport flight. The best price for a return plane ticket is $1,246. Remember that fares can change due to demand when booking.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from LHR to SAL if you book ahead. Airlines often offer some fantastic early bird deals.

  • If you're flexible with your travel plans, use the 'Whole month' search function. It'll show you the cheapest price across each month when searching for a flight from London Heathrow Airport to El Salvador International Airport.

  • Stay on top of deals for cheap flights from LHR to SAL by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Pick your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from London Heathrow Airport to El Salvador International Airport.

Handy information about London Heathrow Airport (LHR)

  • Of the departures from London Heathrow Airport, 68.18% arrive as scheduled at their destination.

  • To get to London Heathrow Airport from central London, it takes about 55 minutes if you're planning to drive. This depends on traffic though. It's approximately 31 kilometres from the airport to the city centre.

  • The trip when using public transport will take about 1 hour.

  • Taking an early flight from London Heathrow Airport to El Salvador International Airport? Avoid the hassle of rushing to the airport (and sneak in some extra precious sleep) by choosing one of these stays close to LHR:

Arriving at El Salvador International Airport (SAL)

Getting from El Salvador International Airport (SAL) to central San Salvador

  • El Salvador International Airport is roughly 40 kilometres from the centre of San Salvador. The drive time takes about 40 minutes.

When to fly to El Salvador International Airport (SAL)

  • August is the most popular month for flights from London Heathrow Airport to El Salvador International Airport. To skip the crowds, go to San Salvador in February.

  • The warmest month in San Salvador is March, with temperatures ranging between 19ºC (66ºF) and 32ºC (90ºF). Book your flights from London Heathrow Airport to El Salvador International Airport in this month if this is the type of weather you like.

  • January sees average temperatures of between 18ºC (64ºF) and 30ºC (86ºF). Look for cheap tickets from LHR to SAL sometime around then if you want to travel in cooler conditions.

Explore more of El Salvador

  • You've visited San Salvador, now it's time to explore more of El Salvador. Travel about 8 kilometres north-east to Soyapango to check off its popular sights. From Parque de Ciudad Credisa to MONUMENTO A LOS HERMANOS CAIDOS and Zona verde (cancha, parque y casa comunal), your itinerary will be busy.

  • Around 48 kilometres north-west of San Salvador, Santa Ana is another essential stop in El Salvador. No visit is complete without checking out Planta seca, Secundario Condominios Procavia Park and San Cayetano Park.

Plan the rest of your trip from London to San Salvador

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.