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Cheap flights from San Salvador to London Heathrow Airport from £392

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 19/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAL — LHR
25 Apr — 2 May1
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 26 March 2026.

Thu 7/513:51
SAL
-
LHR
1 stop14h 29m
KLM
Thu 14/511:45
LHR
-
SAL
2 stops31h 41m
KLM
Deal found 23/3£718
Mon 20/414:04
SAL
-
LHR
1 stop14h 16m
KLM
Tue 28/409:20
LHR
-
SAL
1 stop34h 19m
KLM
Deal found 24/3£721
Thu 16/414:04
SAL
-
LHR
1 stop16h 11m
KLM
Tue 26/511:15
LHR
-
SAL
1 stop32h 11m
KLM
Deal found 25/3£721
Sat 28/314:13
SAL
-
LHR
1 stop33h 12m
KLM
Fri 3/415:15
LHR
-
SAL
1 stop28h 33m
KLM
Deal found 23/3£728
Tue 14/414:04
SAL
-
LHR
1 stop33h 21m
KLM
Tue 26/511:15
LHR
-
SAL
1 stop32h 11m
KLM
Deal found 25/3£729
Wed 20/512:05
SAL
-
LHR
1 stop20h 30m
Avianca
Mon 1/622:05
LHR
-
SAL
1 stop15h 25m
Avianca
Deal found 23/3£731
Mon 14/913:37
SAL
-
LHR
1 stop14h 43m
KLM
Wed 23/911:15
LHR
-
SAL
1 stop32h 07m
KLM
Deal found 23/3£735
Thu 7/522:35
SAL
-
LHR
2 stops26h 30m
Multiple Airlines
Thu 14/522:05
LHR
-
SAL
1 stop15h 25m
Multiple Airlines
Deal found 22/3£737
Tue 19/512:05
SAL
-
LHR
1 stop20h 30m
Avianca
Mon 1/622:05
LHR
-
SAL
1 stop20h 00m
Avianca
Deal found 24/3£743

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 26 March 2026.

Round-trip from

£718

One-way from

£392

Popular in

December

Cheapest in

February

Average price

£844
KLM
  • KLM
  • 7/5-14/5
  • 3 total stops
  • 46h 10m total
  • San Salvador to London
Search Deals
Avianca
  • Avianca
  • 19/6
  • 1 total stop
  • 24h 30m total
  • San Salvador to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 26 March 2026.
Use the filters below to find and compare flights from San Salvador to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 20/4

14:04-13:15

1 stop16h 11m

London Heathrow

Tue 28/4

15:15-12:39

1 stop28h 24m

£721

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 20/4

14:04-06:25

1 stop33h 21m

London Heathrow

Mon 27/4

09:20-12:39

1 stop34h 19m

£721

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 23/5

13:20-09:35

2 stops37h 15m

London Heathrow

Tue 26/5

07:25-20:49

2 stops20h 24m

£735

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 1/5

14:04-11:20

1 stop14h 16m

London Heathrow

Sat 9/5

09:20-12:26

1 stop34h 06m

£760

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 6/5

06:00-08:20

2 stops19h 20m

London Heathrow

Sun 10/5

12:10-04:50

2 stops47h 40m

£827

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 12/9

13:37-16:15

2 stops19h 38m

London Heathrow

Sun 27/9

09:20-12:22

1 stop34h 02m

£828
Fastest return journey

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 18/5

02:00-10:10

1 stop25h 10m

London Heathrow

Mon 1/6

10:00-20:49

1 stop17h 49m

£833
Cheapest one-way

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 19/6

08:05-15:35

1 stop24h 30m

£392
Fastest single journey

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 20/6

12:05-15:35

1 stop20h 30m

£392

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 20/4

22:05-19:55

3 stops38h 50m

£449

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 13 resultsSorted by cheapest first
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

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

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 0 different airlines.

  • 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 16h 11m. KLM provides one of the quickest options available for as low as £721. The distance between San Salvador and London Heathrow Airport is about 5431 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Swindon
Bedford

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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

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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