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Cheap flights from London Heathrow Airport to San Salvador from £436

LHR — SAL
23 Oct — 30 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to San Salvador

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to San Salvador

Thu 5/1121:35 -
1 stop15h 00m
Sat 14/1114:50 -
1 stop17h 45m
Deal found 21/9£508
Tue 3/1121:35 -
1 stop15h 00m
Mon 16/1107:45 -
1 stop24h 50m
Deal found 18/9£514
Tue 3/1121:35 -
2 stops29h 30m
Tue 10/1122:20 -
2 stops34h 15m
Deal found 18/9£518
Fri 6/1121:35 -
1 stop15h 00m
Fri 13/1107:45 -
1 stop24h 50m
Deal found 21/9£547

Find flight deals from Heathrow to San Salvador

Round-trip from

£508

One-way from

£436

Popular in

September

Cheapest in

November

Average price

£886
Avianca
  • Avianca
  • 5/11-14/11
  • 2 total stops
  • 32h 45m total
  • London to San Salvador
Search Deals
27/1-31/12
  • 27/1-31/12
  • 3 total stops
  • 32h 55m total
  • London to San Salvador
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to San Salvador that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Thu 28/1

19:30-11:03

3 stops45h 33m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£454

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Tue 6/10

20:50-08:05

3 stops42h 15m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£562

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Mon 5/10

22:30-14:10

1 stop22h 40m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£565

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Tue 6/10

22:30-14:10

1 stop22h 40m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£570

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sat 31/10

12:05-20:45

1 stop14h 40m

San Salvador El Salvador Intl

Sat 14/11

01:10-09:10

2 stops26h 00m

£578

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Fri 30/10

10:25-20:45

2 stops40h 20m

San Salvador El Salvador Intl

Tue 3/11

07:00-07:40

1 stop18h 40m

£579

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Fri 6/11

12:05-21:19

1 stop15h 14m

San Salvador El Salvador Intl

Fri 13/11

23:54-05:55

2 stops24h 01m

£579

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Tue 20/10

07:25-20:49

2 stops20h 24m

San Salvador El Salvador Intl

Tue 27/10

22:54-20:35

1 stop15h 41m

£701
Fastest return journey

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Mon 5/10

06:30-20:32

2 stops21h 02m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£702

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Tue 6/10

06:30-20:32

2 stops21h 02m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£702

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador from Heathrow with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to San Salvador

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

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to San Salvador (average of £614). Flying from London Heathrow Airport to San Salvador in September is currently the most expensive (average of £886). 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.

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

Airfare is below average for this route at the moment.

London Heathrow Airport to San Salvador flights typically cost between £758 and £891 in November.
The cheapest return price found within the last 5 days was £508 on Avianca (5 Nov–14 Nov).

Reviews of airlines servicing San Salvador

Check out reviews from past customers who have flown with United Airlines,Air Canada, andAmerican Airlines from London Heathrow Airport to San Salvador to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,229 reviews
Check prices

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
United Airlines
7.4
Good
10,229 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Air Canada
7.1
Good
11,671 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
American Airlines
7.0
Good
12,077 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Lufthansa
6.8
Okay
8,234 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Avianca
6.5
Okay
2,551 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.

Related info for your journey

  • What airport do you fly into for flights to San Salvador from London Heathrow?

    Most people fly into San Salvador El Salvador Intl (SAL) if they book a flight to San Salvador from London Heathrow. On average, El Salvador Intl has 0 inbound flights from London Heathrow per day from 5 airlines. San Salvador El Salvador Intl is conveniently located just 20.5 mi from San Salvador’s city center.

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

    Airlines like Avianca and United Airlines fly from London Heathrow Airport to San Salvador in about 14h 40m. The time it takes to get you to your destination can typically vary by up to 14h 50m. There are 5431 mi between London Heathrow Airport and San Salvador. This flight may include one or multiple stops.

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

    Flying on American Airlines is currently your cheapest option to San Salvador, with prices starting at £500. Additional return tickets that might be worth considering are offered by Avianca and United Airlines, with the lowest prices starting at £548 and £559, respectively. These flights start at 31% lower than the current average price 3 months from now.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to San Salvador.

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

    Yes. Cheapflights offers flight deals from Heathrow to San Salvador 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 London Heathrow Airport to San Salvador?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to San Salvador (average of £614). Flying from London Heathrow Airport to San Salvador in September is currently the most expensive (average of £886). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to San Salvador

Gatwick to San Salvador flights
Stansted to San Salvador flights
London City to San Salvador flights

Top 5 airlines flying from Heathrow to San Salvador

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£500Average£831FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
AviancaCheapest£548Average£650FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest£559Average£714FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£598Average£696FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£643Average£802FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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Deals for Heathrow to San Salvador flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to San Salvador 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 Heathrow to San Salvador with no change fees?

Yes, we can. To see specific flights from Heathrow to San Salvador with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Heathrow to San Salvador flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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