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Cheap flights from San Salvador to London Heathrow Airport from £288

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 24/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAL — LHR
9 Mar — 16 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Salvador to Heathrow

Enter your travel dates to find the best prices.

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 7 February 2026.

Mon 14/922:20
SAL
-
LHR
1 stop28h 10m
Multiple Airlines
Wed 23/913:50
LHR
-
SAL
2 stops27h 04m
Multiple Airlines
Deal found 4/2£610
Sun 1/314:35
SAL
-
LHR
1 stop15h 05m
KLM
Mon 2/315:45
LHR
-
SAL
2 stops51h 25m
KLM
Deal found 7/2£646
Sun 8/214:35
SAL
-
LHR
1 stop35h 15m
KLM
Sun 15/215:50
LHR
-
SAL
1 stop27h 20m
KLM
Deal found 7/2£655
Mon 2/314:35
SAL
-
LHR
1 stop35h 15m
KLM
Tue 17/312:30
LHR
-
SAL
1 stop30h 18m
KLM
Deal found 5/2£656
Fri 13/322:40
SAL
-
LHR
1 stop15h 20m
Multiple Airlines
Tue 17/308:20
LHR
-
SAL
1 stop16h 45m
Multiple Airlines
Deal found 4/2£663
Tue 14/407:09
SAL
-
LHR
2 stops21h 46m
Multiple Airlines
Wed 22/413:05
LHR
-
SAL
2 stops23h 18m
Multiple Airlines
Deal found 5/2£666
Tue 24/314:13
SAL
-
LHR
1 stop35h 37m
KLM
Sat 18/415:15
LHR
-
SAL
1 stop28h 24m
KLM
Deal found 7/2£667
Tue 1/913:19
SAL
-
LHR
1 stop34h 26m
KLM
Wed 30/911:15
LHR
-
SAL
1 stop32h 07m
KLM
Deal found 4/2£668

Find 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 7 February 2026.

Round-trip from

£646

One-way from

£288

Popular in

June

Cheapest in

February

Average price

£641
KLM
  • KLM
  • 1/3-2/3
  • 3 total stops
  • 66h 30m total
  • San Salvador to London
Search Deals
24/2
  • 24/2
  • 3 total stops
  • 43h 28m total
  • San Salvador to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 7 February 2026.
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

Mon 2/3

14:35-11:40

1 stop15h 05m

London Heathrow

Tue 17/3

12:30-12:48

1 stop30h 18m

£656

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 2/3

14:35-11:40

1 stop15h 05m

London Heathrow

Mon 16/3

10:45-12:48

1 stop32h 03m

£656

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 16/3

14:13-07:50

1 stop35h 37m

London Heathrow

Tue 24/3

15:50-12:48

1 stop26h 58m

£656

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Tue 24/3

14:13-07:50

1 stop35h 37m

London Heathrow

Sat 18/4

15:15-12:39

1 stop28h 24m

£667

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 20/4

14:04-06:45

1 stop33h 41m

London Heathrow

Sat 25/4

15:15-12:39

1 stop28h 24m

£668

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Tue 24/3

14:13-11:40

1 stop15h 27m

London Heathrow

Wed 15/4

13:25-12:39

1 stop30h 14m

£668

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 28/3

14:13-05:45

1 stop33h 32m

London Heathrow

Fri 3/4

11:15-12:48

1 stop32h 33m

£675

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 16/5

14:00-13:15

1 stop16h 15m

London Heathrow

Mon 25/5

11:15-12:35

1 stop32h 20m

£676

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 17/4

22:20-06:35

2 stops25h 15m

£322

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Thu 26/2

07:35-17:30

3 stops27h 55m

£346

Flights are sorted by cheapest return flights first.

Deals found on 7/2

Showing 1-10 of 19 results
1
2

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

What’s the top stopover airport for flights from San Salvador to London Heathrow Airport?

Share of one-stop return flights from San Salvador to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Atlanta (ATL) – chosen by Cheapflights users on 64% of one-stop itineraries from San Salvador to London Heathrow Airport on Cheapflights.

What’s the cheapest stopover airport for flights from San Salvador to London Heathrow Airport?

Average return fare for one-stop flights from San Salvador to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £674.

What’s the fastest stopover option from San Salvador to London Heathrow Airport?

Shortest average travel time for one-stop one-way flights from San Salvador to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Miami (MIA) have the shortest average one-way travel time for one-stop routes: 14h 29m.

Which airport typically offers the quickest stopover for flights from San Salvador to London Heathrow Airport?

Average stopover duration for one-stop one-way flights from San Salvador to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average stopover time of 2h 33m.

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 7 February 2026.
Read reviews from past customers who have flown with Iberia 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.
Iberia
7.0
Good
3,106 reviews
Check prices

Comfort

6.8

Crew

7.7

Boarding

7.2

Overall

7.0

Entertainment

6.6

Food

6.4

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.
Iberia
7.0
Good
3,106 reviews
Iberia
7.0
Good
3,106 reviews
Check prices

Comfort

6.8

Crew

7.7

Boarding

7.2

Overall

7.0

Entertainment

6.6

Food

6.4

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.

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 1 airline.

  • How long is the flight from San Salvador to London Heathrow Airport?

    A quick flight from San Salvador to London Heathrow Airport can take about 15h 05m. KLM provides one of the quickest options available for as low as £656. The distance between San Salvador and London Heathrow Airport is about 5431 mi.

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

    Currently priced at £778, Iberia will fly you from San Salvador to London Heathrow Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Users have found that Iberia is 1% cheaper than the other options available to this destination.

  • 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Northampton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
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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.
San Salvador to Gatwick flights

Top airline flying from San Salvador to Heathrow

Discover the top airline 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 7 February 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£778Average£867FlexibilityNo 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?

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.

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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