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Cheap flights from San Salvador to London Heathrow Airport from £307

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAL — LHR
17 Jan — 24 Jan1
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 18 December 2025.

Fri 26/1216:40SAL - LHR
1 stop35h 35mUnited Airlines
Thu 8/112:05LHR - SAL
1 stop15h 14mUnited Airlines
Deal found 15/12£766
Mon 29/1214:32SAL - LHR
1 stop33h 53mKLM
Wed 14/112:30LHR - SAL
1 stop30h 40mKLM
Deal found 16/12£779
Wed 17/1206:55SAL - LHR
1 stop18h 35mUnited Airlines
Sat 17/108:00LHR - SAL
2 stops19h 19mUnited Airlines
Deal found 16/12£813
Wed 17/1206:55SAL - LHR
2 stops21h 30mUnited Airlines
Wed 31/1218:00LHR - SAL
2 stops27h 24mUnited Airlines
Deal found 16/12£819
Sun 28/1202:00SAL - LHR
1 stop23h 30mUnited Airlines
Wed 14/115:20LHR - SAL
2 stops30h 04mUnited Airlines
Deal found 17/12£820
Tue 16/1206:55SAL - LHR
1 stop21h 20mUnited Airlines
Tue 23/1212:05LHR - SAL
1 stop15h 14mUnited Airlines
Deal found 15/12£837
Thu 25/1206:55SAL - LHR
2 stops19h 00mUnited Airlines
Wed 31/1207:40LHR - SAL
2 stops22h 56mUnited Airlines
Deal found 15/12£900

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 18 December 2025.

Round-trip from

£602

One-way from

£307

Popular in

June

Cheapest in

February

Average price

£873
18/2-4/3
  • 18/2-4/3
  • 4 total stops
  • 71h 19m total
  • San Salvador to London
Search Deals
17/3
  • 17/3
  • 2 total stops
  • 44h 40m total
  • San Salvador to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 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

Thu 29/1

14:35-06:25

1 stop33h 50m

London Heathrow

Thu 5/2

08:55-13:10

1 stop34h 15m

£677

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 9/2

14:35-07:50

1 stop35h 15m

London Heathrow

Mon 23/2

12:30-13:10

1 stop30h 40m

£677

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 14/1

14:35-06:25

1 stop33h 50m

London Heathrow

Wed 18/2

12:30-13:10

1 stop30h 40m

£680

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 1/5

14:00-06:30

1 stop33h 30m

London Heathrow

Sun 17/5

10:55-12:35

1 stop32h 40m

£689

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Tue 14/4

14:00-13:30

1 stop16h 30m

London Heathrow

Tue 21/4

15:15-12:35

1 stop28h 20m

£689

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 31/1

14:35-17:00

2 stops20h 25m

London Heathrow

Sat 7/2

10:45-13:10

1 stop32h 25m

£701

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 2/3

06:55-10:15

1 stop21h 20m

London Heathrow

Tue 17/3

12:05-04:45

2 stops46h 40m

£723

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 14/1

07:34-14:25

3 stops24h 51m

London Heathrow

Wed 21/1

13:40-10:53

2 stops27h 13m

£725

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 28/1

06:55-10:15

1 stop21h 20m

London Heathrow

Sun 1/2

09:00-05:45

2 stops26h 45m

£726

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 1/5

14:00-13:30

1 stop16h 30m

London Heathrow

Sat 9/5

15:15-12:35

1 stop28h 20m

£727

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 17 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 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 18 December 2025.

It’s typically best to fly out from San Salvador to London Heathrow Airport at midday. Doing so could potentially save you 44% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 18 December 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.
Iberia
7.0
Good
3,053 reviews
Check prices

Entertainment

6.6

Food

6.3

Crew

7.7

Boarding

7.1

Overall

7.0

Comfort

6.7

Reviews

1 / 20
10.0
Excellent

Sylvie,Dec 2025

MAD - DSS

No space ,no confortable, and not organised at all àd very tiring and I booked my seat in advance
Iberia
7.0
Good
3,053 reviews
Iberia
7.0
Good
3,053 reviews
Check prices

Entertainment

6.6

Food

6.3

Crew

7.7

Boarding

7.1

Overall

7.0

Comfort

6.7

Reviews

1 / 20
10.0
Excellent

Sylvie,Dec 2025

MAD - DSS

No space ,no confortable, and not organised at all àd very tiring and I booked my seat in advance

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 33h 50m. KLM provides one of the quickest options available for as low as £677. 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 £790, 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

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Gatwick
Wembley
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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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£790Average£881FlexibilityNo 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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