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Cheap flights from London Heathrow Airport to San Salvador from £411

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to San Salvador departing on 20/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Heathrow Airport to San Salvador

Cheap return flights

Enter your travel dates to find the best prices.
Avianca Logo
22:05 - 15:40
LHR
-
SAL
24h 35m
1 stop
Avianca Logo
12:05 - 15:35
SAL
-
LHR
20h 30m
1 stop
£686Avianca
Sun, 6 Sep - Wed, 16 Sep
Avianca Logo
22:05 - 06:30
LHR
-
SAL
15h 25m
1 stop
Avianca Logo
12:05 - 15:35
SAL
-
LHR
20h 30m
1 stop
£687Avianca
Sun, 6 Sep - Wed, 16 Sep
Avianca Logo
22:05 - 15:40
LHR
-
SAL
24h 35m
1 stop
Avianca Logo
22:20 - 15:35
SAL
-
LHR
34h 15m
2 stops
£688Avianca
Sun, 6 Sep - Wed, 16 Sep
United Airlines Logo
06:55 - 20:49
LHR
-
SAL
20h 54m
2 stops
United Airlines Logo
06:00 - 07:55
SAL
-
LHR
18h 55m
1 stop
£690United Airlines
Sat, 22 Aug - Sat, 29 Aug
United Airlines Logo
07:30 - 20:45
LHR
-
SAL
19h 15m
2 stops
United Airlines Logo
23:54 - 20:35
SAL
-
LHR
14h 41m
1 stop
£690United Airlines
Sat, 31 Oct - Sun, 15 Nov
United Airlines Logo
07:25 - 20:49
LHR
-
SAL
20h 24m
2 stops
United Airlines Logo
15:40 - 07:55
SAL
-
LHR
33h 15m
1 stop
£691United Airlines
Fri, 21 Aug - Fri, 28 Aug
United Airlines Logo
07:30 - 20:45
LHR
-
SAL
19h 15m
2 stops
United Airlines Logo
07:00 - 12:00
SAL
-
LHR
23h 00m
2 stops
£692United Airlines
Sat, 31 Oct - Sun, 15 Nov
United Airlines Logo
06:50 - 22:47
LHR
-
SAL
21h 57m
2 stops
United Airlines Logo
07:00 - 08:25
SAL
-
LHR
19h 25m
2 stops
£693United Airlines
Tue, 3 Nov - Mon, 16 Nov
United Airlines Logo
07:30 - 20:45
LHR
-
SAL
19h 15m
2 stops
United Airlines Logo
07:00 - 12:00
SAL
-
LHR
23h 00m
2 stops
£693United Airlines
Sat, 31 Oct - Sun, 15 Nov
United Airlines Logo
07:25 - 20:49
LHR
-
SAL
20h 24m
2 stops
United Airlines Logo
06:00 - 07:45
SAL
-
LHR
18h 45m
1 stop
£694United Airlines
Wed, 19 Aug - Wed, 26 Aug

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United Airlines flights from London Heathrow Airport to San Salvador

Our best United Airlines deals on London Heathrow Airport to San Salvador flight tickets
United Airlines
22 Aug
LHR06:55London Heathrow
20h 54m
2 stops
SAL20:49San Salvador El Salvador Intl
29 Aug
SAL06:00San Salvador El Salvador Intl
18h 55m
1 stop
LHR07:55London Heathrow
£690
United Airlines
31 Oct
LHR07:30London Heathrow
19h 15m
2 stops
SAL20:45San Salvador El Salvador Intl
15 Nov
SAL23:54San Salvador El Salvador Intl
14h 41m
1 stop
LHR20:35London Heathrow
£690
United Airlines
21 Aug
LHR07:25London Heathrow
20h 24m
2 stops
SAL20:49San Salvador El Salvador Intl
28 Aug
SAL15:40San Salvador El Salvador Intl
33h 15m
1 stop
LHR07:55London Heathrow
£691

Avianca flights from London Heathrow Airport to San Salvador

Our best Avianca deals on London Heathrow Airport to San Salvador flight tickets
Avianca
6 Sept
LHR22:05London Heathrow
24h 35m
1 stop
SAL15:40San Salvador El Salvador Intl
16 Sept
SAL12:05San Salvador El Salvador Intl
20h 30m
1 stop
LHR15:35London Heathrow
£686
Avianca
6 Sept
LHR22:05London Heathrow
15h 25m
1 stop
SAL06:30San Salvador El Salvador Intl
16 Sept
SAL12:05San Salvador El Salvador Intl
20h 30m
1 stop
LHR15:35London Heathrow
£687
Avianca
6 Sept
LHR22:05London Heathrow
24h 35m
1 stop
SAL15:40San Salvador El Salvador Intl
16 Sept
SAL22:20San Salvador El Salvador Intl
34h 15m
2 stops
LHR15:35London Heathrow
£688

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to San Salvador 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, momondo users made 279,928 searches. Data last updated 26 July 2026.
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 - SAL

LHRSAL

London Heathrow

Sun 6/9

22:05-15:40

1 stop24h 35m

San Salvador El Salvador Intl

Wed 16/9

12:05-15:35

1 stop20h 30m

£686

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sun 6/9

22:05-06:30

1 stop15h 25m

San Salvador El Salvador Intl

Wed 16/9

12:05-15:35

1 stop20h 30m

£687

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sun 6/9

22:05-15:40

1 stop24h 35m

San Salvador El Salvador Intl

Wed 16/9

22:20-15:35

2 stops34h 15m

£688

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 22/8

06:55-20:49

2 stops20h 54m

San Salvador El Salvador Intl

Sat 29/8

06:00-07:55

1 stop18h 55m

£690
Fastest return journey

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 31/10

07:30-20:45

2 stops19h 15m

San Salvador El Salvador Intl

Sun 15/11

23:54-20:35

1 stop14h 41m

£690

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Fri 21/8

07:25-20:49

2 stops20h 24m

San Salvador El Salvador Intl

Fri 28/8

15:40-07:55

1 stop33h 15m

£691

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 31/10

07:30-20:45

2 stops19h 15m

San Salvador El Salvador Intl

Sun 15/11

07:00-12:00

2 stops23h 00m

£692

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Tue 3/11

06:50-22:47

2 stops21h 57m

San Salvador El Salvador Intl

Mon 16/11

07:00-08:25

2 stops19h 25m

£692

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 31/10

07:30-20:45

2 stops19h 15m

San Salvador El Salvador Intl

Sun 15/11

07:00-12:00

2 stops23h 00m

£693

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Wed 19/8

07:25-20:49

2 stops20h 24m

San Salvador El Salvador Intl

Wed 26/8

06:00-07:45

1 stop18h 45m

£694

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Salvador from

How to get the cheapest flight ticket from London Heathrow Airport to San Salvador

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and San Salvador?

Prices are currently low for flights on this route.

Typical prices usually range from £687 to £771.
The lowest price recently found on this route was £686.

What is the cheapest month to fly to San Salvador?

The cheapest month to fly to San Salvador from London Heathrow Airport is in November. Flight prices, which tend to average around £615, are often lower during this time because this is during the off-season. If you aren’t able to travel to San Salvador during the month of November, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £617.

How far in advance should I book a flight from London Heathrow Airport to San Salvador?

You are more likely to see cheaper flights to San Salvador from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Salvador for around £709 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Salvador from London Heathrow Airport for as low as £579 on momondo.

Can stopping save me money on London Heathrow Airport to San Salvador flights?

You could potentially save up to 45% on your flight if you consider stops on a London Heathrow Airport to San Salvador flight.

When to book flights from London Heathrow Airport to San Salvador

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to San Salvador according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to San Salvador (LHR to SAL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to San Salvador

Fastest flight time

19h 15m

Direct flights

None
The fastest flight from London Heathrow Airport to San Salvador takes 19h 15m
There are no direct flights from London Heathrow Airport to San Salvador. There are no popular flight routes from London Heathrow Airport to San Salvador.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to San Salvador

  • How far is London Heathrow to San Salvador El Salvador Intl by plane?

    The distance between London Heathrow and San Salvador El Salvador Intl is about 5424.0 mi. A reasonable flight in good conditions will take 19h 15m.

  • When did momondo last update prices for flights from London Heathrow Airport to San Salvador El Salvador Intl Airport?

    Prices for flights from London Heathrow Airport to San Salvador El Salvador Intl Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to San Salvador El Salvador Intl Airport?

  • How old do you have to be to fly from London Heathrow Airport to San Salvador El Salvador Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to San Salvador El Salvador Intl Airport.

  • What documentation or ID do you need to fly to San Salvador El Salvador Intl Airport?

    The travel and health documents required for your trip to San Salvador El Salvador Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Salvador El Salvador Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from London Heathrow Airport to San Salvador?

Best airlines flying from London Heathrow Airport to San Salvador

Compare and see reviews for airlines that fly from London Heathrow Airport to San Salvador with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom £506Free CancellationRating
6.5
2,520 reviews
Search Avianca flights
United AirlinesPriceFrom £560Free CancellationRating
7.4
10,037 reviews
Search United Airlines flights
LufthansaPriceFrom £592Free CancellationRating
6.8
8,157 reviews
Search Lufthansa flights
Air CanadaPriceFrom £618Free CancellationRating
7.1
11,388 reviews
Search Air Canada flights

Travelling to a place near San Salvador?

Book flights to San Salvador if you plan to visit one of these locations
Sonsonate

Why use momondo?

Why should I use momondo to find a flight deal from London to San Salvador?

It is quick and easy to find London to San Salvador flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Salvador that suits you.

Can I find flights from London to San Salvador with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Salvador from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to San Salvador?

momondo provides multiple filters to help you find the best flight to San Salvador from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to San Salvador right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to San Salvador flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Fly your favourite airline to San Salvador

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
Air Canada
Avianca
Lufthansa