Cheap flights from San Salvador to London Heathrow Airport from £244

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAL — LHR
8 Sep — 15 Sep1
1 adult

Cheapflights Tip: The best prices from San Salvador El Salvador Intl to London Heathrow are usually found in October or February, booked 68 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 3 September 2025.

Round-trip from

£606

One-way from

£244

Popular in

June

Cheapest in

October

Average price

£604
26/10-6/11
  • 26/10-6/11
  • 4 total stops
  • 55h 05m total
  • San Salvador to London
24/9
  • 24/9
  • 3 total stops
  • 30h 45m total
  • San Salvador to London
Highest demand for flights based on searches. 14% potential increase in price (£88 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 September 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 3 September 2025.

Sun 26/1009:05SAL - LHR
2 stops18h 10mMultiple Airlines
Thu 6/1112:10LHR - SAL
2 stops36h 55mMultiple Airlines
Deal found 1/9£606
Fri 17/1005:30SAL - LHR
3 stops29h 15mMultiple Airlines
Fri 24/1007:00LHR - SAL
3 stops28h 57mMultiple Airlines
Deal found 2/9£631
Thu 20/1122:40SAL - LHR
2 stops28h 25mMultiple Airlines
Thu 27/1110:00LHR - SAL
2 stops26h 30mMultiple Airlines
Deal found 2/9£642
Sat 6/913:52SAL - LHR
1 stop33h 53mKLM
Wed 17/915:15LHR - SAL
1 stop28h 07mKLM
Deal found 1/9£655
Wed 17/913:37SAL - LHR
1 stop34h 08mKLM
Thu 25/913:05LHR - SAL
1 stop30h 17mKLM
Deal found 2/9£656
Fri 14/1114:26SAL - LHR
2 stops17h 59mKLM
Fri 28/1108:55LHR - SAL
1 stop34h 16mKLM
Deal found 1/9£679
Sun 19/1013:39SAL - LHR
2 stops19h 36mKLM
Fri 31/1012:30LHR - SAL
1 stop29h 54mKLM
Deal found 3/9£680

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 3 September 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

Sun 26/10

09:05-09:15

2 stops18h 10m

London Heathrow

Thu 6/11

12:10-19:05

2 stops36h 55m

£606

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 17/10

05:30-17:45

3 stops29h 15m

London Heathrow

Fri 24/10

07:00-04:57

3 stops28h 57m

£631

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Thu 20/11

22:40-09:05

2 stops28h 25m

London Heathrow

Thu 27/11

10:00-06:30

2 stops26h 30m

£642

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 2/2

08:05-06:55

1 stop16h 50m

London Heathrow

Sat 7/2

16:35-19:05

1 stop32h 30m

£654

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 15/11

14:26-07:50

1 stop35h 24m

London Heathrow

Fri 28/11

08:55-13:11

1 stop34h 16m

£655

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 14/11

14:26-07:50

1 stop35h 24m

London Heathrow

Fri 28/11

08:55-13:11

1 stop34h 16m

£655

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 5/11

14:39-07:50

1 stop35h 11m

London Heathrow

Mon 17/11

15:50-13:11

1 stop27h 21m

£655

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 1/10

13:37-13:30

1 stop16h 53m

London Heathrow

Wed 15/10

09:20-12:24

1 stop34h 04m

£655

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 24/9

08:15-22:00

3 stops30h 45m

£244

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 22/11

22:40-21:35

2 stops40h 55m

£252

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 15 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

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 29 August 2025.

The best time to book flights from San Salvador to London Heathrow Airport is 68 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 3 September 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 3 September 2025.
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.

Entertainment

6.6

Crew

7.6

Food

6.3

Boarding

7.1

Comfort

6.7

Overall

7.0

Reviews

1 / 20
2.0
Mediocre

Gaby,Aug 2025

BCN - ORD

Our flight kept getting delayed due to the weather and mechanical issues. Then it was canceled and rescheduled until the following day which was also delayed by a couple hours and the returning flight was also delayed so overall, we wasted a lot of time on the airport. Also, when it happened the first day, they did not want to honor a hotel or rideshare service voucher because it was hard to find an uber at 3-4 in the morning and customer service was closed that late in the day.

Entertainment

6.6

Crew

7.6

Food

6.3

Boarding

7.1

Comfort

6.7

Overall

7.0

Reviews

1 / 20
2.0
Mediocre

Gaby,Aug 2025

BCN - ORD

Our flight kept getting delayed due to the weather and mechanical issues. Then it was canceled and rescheduled until the following day which was also delayed by a couple hours and the returning flight was also delayed so overall, we wasted a lot of time on the airport. Also, when it happened the first day, they did not want to honor a hotel or rideshare service voucher because it was hard to find an uber at 3-4 in the morning and customer service was closed that late in the day.

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 35h 24m. KLM provides one of the quickest options available for as low as £655. 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 £787, 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.

  • 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
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Deal
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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 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 3 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£787Average£877FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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How does Cheapflights help users find flights 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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