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Cheap flights from London Heathrow Airport to San Salvador from £333

LHR — SAL
23 Nov — 30 Nov1
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 14/1107:45 -
1 stop24h 50m
Deal found 22/10£630
Sun 8/1121:35 -
1 stop15h 00m
Sat 21/1114:50 -
1 stop17h 45m
Deal found 24/10£631
Tue 10/1121:35 -
1 stop24h 05m
Tue 24/1122:20 -
2 stops34h 15m
Deal found 23/10£634
Sat 21/1121:35 -
1 stop30h 10m
Sat 28/1107:45 -
1 stop24h 50m
Deal found 24/10£638
Thu 26/1121:35 -
1 stop15h 00m
Sat 5/1214:50 -
1 stop17h 45m
Deal found 22/10£640
Tue 3/1121:35 -
1 stop15h 00m
Mon 16/1107:45 -
1 stop24h 50m
Deal found 23/10£672

Find flight deals from Heathrow to San Salvador

Round-trip from

£630

One-way from

£333

Popular in

September

Cheapest in

March

Average price

£718
Avianca
  • Avianca
  • 5/11-14/11
  • 2 total stops
  • 39h 50m total
  • London to San Salvador
Search Deals
23/2-31/12
  • 23/2-31/12
  • 2 total stops
  • 21h 00m total
  • London to San Salvador
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£29 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 October 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
Fastest return journey

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Tue 23/2

15:30-06:30

2 stops21h 00m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£333

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sun 15/11

21:35-15:40

1 stop24h 05m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£430

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sun 15/11

15:15-05:30

2 stops44h 15m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£448

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sun 6/12

09:15-21:05

3 stops41h 50m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£463

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sat 9/1

21:35-06:10

2 stops38h 35m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£574

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sat 9/1

12:15-06:32

2 stops24h 17m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£591

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Fri 4/12

06:00-11:03

2 stops35h 03m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£603

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sun 22/11

21:35-06:35

1 stop15h 00m

San Salvador El Salvador Intl

Sun 29/11

22:05-14:35

1 stop34h 30m

£638

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Sun 6/12

16:00-13:14

1 stop27h 14m

San Salvador El Salvador Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£666

LondonSan Salvador

LHR London Heathrow - SAL San Salvador El Salvador Intl

LHRSAL

London Heathrow

Tue 3/11

11:45-13:32

2 stops31h 47m

San Salvador El Salvador Intl

Mon 16/11

13:59-16:35

2 stops20h 36m

£719

Flights are sorted by cheapest return flights first.

Deals found on 24/10

Showing 1-10 of 18 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, March is the cheapest month in which you can book a flight from London Heathrow Airport to San Salvador (average of £676). Flying from London Heathrow Airport to San Salvador in September is currently the most expensive (average of £885). 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 £663 and £805 in November.
The cheapest return price found within the last 5 days was £630 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, andLufthansa 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
7.3
Good
10,432 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.3

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
7.3
Good
10,432 reviews
United Airlines
7.3
Good
10,432 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.3

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
11,805 reviews
United Airlines
7.3
Good
10,432 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.3

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
8,295 reviews
United Airlines
7.3
Good
10,432 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.3

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
2,553 reviews
United Airlines
7.3
Good
10,432 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.3

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 4 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, Lufthansa, and United Airlines fly from London Heathrow Airport to San Salvador in about 15h. The time it takes to get you to your destination can typically vary by up to 9h 20m. 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 Avianca is currently your cheapest option to San Salvador, with prices starting at £547. Additional return tickets that might be worth considering are offered by United Airlines and Lufthansa, with the lowest prices starting at £619 and £639, respectively. These flights start at 25% 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, March is the cheapest month in which you can book a flight from London Heathrow Airport to San Salvador (average of £676). Flying from London Heathrow Airport to San Salvador in September is currently the most expensive (average of £885). 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
London City to San Salvador flights
Stansted to San Salvador flights

Top 4 airlines flying from Heathrow to San Salvador

AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£547Average£619FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest£619Average£714FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£639Average£753FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£642Average£800FlexibilityNo 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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