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Cheap flights from San Salvador to London Heathrow Airport from £275

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 13/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAL — LHR
9 Jul — 16 Jul1
1 adult

Cheapflights Tip: The best prices from San Salvador El Salvador Intl to London Heathrow are usually found in August or September, booked 14 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from San Salvador to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from San Salvador (SAL) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 July 2025.

Round-trip from

£455

One-way from

£275

Popular in

June

Cheapest in

August

Average price

£780
1/10-15/10
  • 1/10-15/10
  • 4 total stops
  • 67h 57m total
  • San Salvador to London
13/7
  • 13/7
  • 2 total stops
  • 51h 15m total
  • San Salvador to London
Highest demand for flights based on searches. 17% potential increase in price (£100 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from San Salvador to Heathrow

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 4 July 2025.

Wed 1/1022:21SAL - LHR
2 stops34h 39mMultiple Airlines
Wed 15/1007:05LHR - SAL
2 stops33h 18mMultiple Airlines
Deal found 3/7£455
Sun 28/913:34SAL - LHR
1 stop14h 36mKLM
Sun 5/1013:05LHR - SAL
1 stop30h 05mKLM
Deal found 2/7£647
Wed 10/915:30SAL - LHR
2 stops34h 05mAir Canada
Tue 16/912:05LHR - SAL
2 stops39h 12mAir Canada
Deal found 2/7£762

Cheapflights Fare Finder

Customise your flight search to find flights from San Salvador to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 July 2025.
Use the filters below to find and compare flights from San Salvador to London Heathrow Airport that are best for you.

Fly from

San Salvador

Fly to

Heathrow

Route

Depart

Return

Price

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 1/10

22:21-16:00

2 stops34h 39m

London Heathrow

Wed 15/10

07:05-09:23

2 stops33h 18m

£455

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 28/9

13:34-11:10

1 stop14h 36m

London Heathrow

Sun 5/10

13:05-12:10

1 stop30h 05m

£647

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 10/9

15:30-08:35

2 stops34h 05m

London Heathrow

Tue 16/9

12:05-20:17

2 stops39h 12m

£762

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 13/7

22:55-09:10

2 stops51h 15m

£275

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 21/9

10:15-15:35

1 stop22h 20m

£425

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 13/9

13:34-13:30

1 stop16h 56m

£459

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 13/9

15:30-06:35

2 stops32h 05m

£474

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 20/9

02:00-07:40

2 stops46h 40m

£494

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Tue 23/9

09:25-22:25

3 stops30h 00m

£634

Flights are sorted by cheapest return flights first.

Deals found on 3/7

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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 27 June 2025.

The best time to book flights from San Salvador to London Heathrow Airport is 14 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.

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

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.

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 4 July 2025.

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.

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

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 4 July 2025.
Read reviews from past customers who have flown with KLM, United Airlines, andTurkish Airlines 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.

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    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.

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

    Currently priced at £647, 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. Check Cheapflights for deals on Air Canada for as low as £762. Users have found that KLM is 3% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from San Salvador to London Heathrow Airport one-way?

    The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as £425. However, be on the lookout for offers from KLM and Air Canada, as they are both options that can get you from San Salvador to London Heathrow Airport for a low price.

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

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

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

    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.

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

    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.

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

    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.

See more FAQs

Travelling to a place near San Salvador?

Book flights to San Salvador if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Swindon
Maidstone

Browse thousands of different options on Cheapflights for your next trip

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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

Discover the top 2 airlines that operate flights from San Salvador to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£539Average£585FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£775Average£863FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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

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.

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

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

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.

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

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.

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