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Cheap flights from London to San Salvador from £394

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAL
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to San Salvador

Enter your travel dates to find the best prices.

Cheapest flights from London to San Salvador
Explore the most affordable flight options available from London to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 July 2026.

Sun 6/907:35
STN
-
SAL
1 stop22h 50m
Multiple Airlines
Wed 16/922:05
SAL
-
STN
2 stops42h 50m
Multiple Airlines
Deal found 23/7£606
Sun 6/922:05
LHR
-
SAL
1 stop24h 35m
Avianca
Wed 16/912:05
SAL
-
LHR
1 stop20h 30m
Avianca
Deal found 23/7£685
Thu 20/822:05
LHR
-
SAL
1 stop24h 35m
Avianca
Thu 8/1012:05
SAL
-
LHR
1 stop20h 30m
Avianca
Deal found 20/7£688
Sun 6/907:25
LHR
-
SAL
2 stops20h 24m
United Airlines
Wed 16/913:50
SAL
-
LHR
2 stops23h 50m
United Airlines
Deal found 23/7£691
Sat 31/1007:30
LHR
-
SAL
2 stops19h 15m
United Airlines
Sun 15/1107:00
SAL
-
LHR
2 stops23h 00m
United Airlines
Deal found 23/7£692
Wed 19/807:25
LHR
-
SAL
2 stops20h 24m
United Airlines
Wed 26/806:00
SAL
-
LHR
1 stop18h 45m
United Airlines
Deal found 22/7£693
Wed 19/807:25
LHR
-
SAL
2 stops20h 24m
United Airlines
Wed 7/1006:00
SAL
-
LHR
1 stop22h 35m
United Airlines
Deal found 20/7£694
Sat 31/1007:30
LHR
-
SAL
2 stops19h 15m
United Airlines
Sat 7/1107:00
SAL
-
LHR
2 stops21h 50m
United Airlines
Deal found 20/7£695
Tue 3/1106:50
LHR
-
SAL
2 stops21h 57m
United Airlines
Mon 16/1107:00
SAL
-
LHR
1 stop18h 40m
United Airlines
Deal found 20/7£696
Tue 25/818:45
STN
-
SAL
2 stops42h 45m
Multiple Airlines
Tue 13/1008:30
SAL
-
STN
1 stop16h 25m
Multiple Airlines
Deal found 20/7£697
Tue 25/816:45
LGW
-
SAL
2 stops44h 45m
Multiple Airlines
Tue 13/1008:30
SAL
-
LGW
1 stop20h 10m
Multiple Airlines
Deal found 20/7£739
Sun 6/906:00
LGW
-
SAL
1 stop24h 25m
Multiple Airlines
Wed 16/908:15
SAL
-
LGW
2 stops29h 25m
Multiple Airlines
Deal found 23/7£751

Find flight deals from London to San Salvador

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Salvador (SAL). 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 23 July 2026.

Round-trip from

£606

One-way from

£394

Popular in

December

Cheapest in

September

Average price

£720
6/9-16/9
  • 6/9-16/9
  • 3 total stops
  • 65h 40m total
  • London to San Salvador
Search Deals
15/10
  • 15/10
  • 3 total stops
  • 51h 39m total
  • London to San Salvador
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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, Cheapflights users made 858,174 searches. Data last updated 23 July 2026.
Use the filters below to find and compare flights from London 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

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

Wed 4/11

06:50-22:47

2 stops21h 57m

San Salvador El Salvador Intl

Mon 16/11

07:00-12:00

2 stops23h 00m

£693
Fastest return journey

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sun 6/9

07:25-20:49

2 stops20h 24m

San Salvador El Salvador Intl

Wed 16/9

13:50-11:35

1 stop14h 45m

£693

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Wed 19/8

07:25-20:49

2 stops20h 24m

San Salvador El Salvador Intl

Wed 7/10

06:00-11:35

1 stop22h 35m

£694

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Thu 20/8

07:25-20:49

2 stops20h 24m

San Salvador El Salvador Intl

Thu 27/8

15:40-07:55

1 stop33h 15m

£694

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 31/10

07:30-20:45

2 stops19h 15m

San Salvador El Salvador Intl

Sat 7/11

07:00-10:50

2 stops21h 50m

£695

LondonSan Salvador

LCY - SAL

LCYSAL

London City

Thu 20/8

10:00-12:32

2 stops33h 32m

San Salvador El Salvador Intl

Thu 8/10

13:39-16:40

2 stops20h 01m

£801

LondonSan Salvador

STN - SAL

STNSAL

London Stansted

Sun 6/9

07:35-23:25

1 stop22h 50m

San Salvador El Salvador Intl

Wed 16/9

08:15-09:25

2 stops18h 10m

£821

LondonSan Salvador

LGW - SAL

LGWSAL

London Gatwick

Sun 6/9

18:35-08:55

3 stops45h 20m

San Salvador El Salvador Intl

Wed 16/9

07:30-17:50

3 stops27h 20m

£836

LondonSan Salvador

STN - SAL

STNSAL

London Stansted

Fri 21/8

11:35-05:30

1 stop24h 55m

San Salvador El Salvador Intl

Fri 9/10

08:15-19:40

2 stops28h 25m

£836

Flights are sorted by cheapest return flights first.

Deals found on 23/7

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from London to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador from London 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 London to San Salvador

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

Currently, November is the cheapest month in which you can book a flight from London to San Salvador (average of £627). Flying from London to San Salvador in December is currently the most expensive (average of £763). 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 to San Salvador?

Airfare is below average for this route at the moment.
London to San Salvador flights typically cost between £672 and £825 in September.
The cheapest return price found within the last 5 days was £606 on Multiple Airlines (6 Sept–16 Sept).

What’s the top stopover airport for flights from London to San Salvador?

Share of one-stop return flights from London to San Salvador chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Houston (IAH) – chosen by Cheapflights users on 36% of one-stop itineraries from London to San Salvador on Cheapflights.

What’s the cheapest stopover airport for flights from London to San Salvador?

Average return fare for one-stop flights from London to San Salvador, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £500.

What’s the fastest stopover option from London to San Salvador?

Shortest average travel time for one-stop one-way flights from London to San Salvador, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Miami (MIA) have the shortest average one-way travel time for one-stop routes: 15h 30m.

Which airport typically offers the quickest stopover for flights from London to San Salvador?

Average stopover duration for one-stop one-way flights from London to San Salvador, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Madrid (MAD) offer the fastest connection on this route, with an average stopover time of 1h 15m.

How far ahead should I book a flight from London to San Salvador?

To ensure you get the cheapest price possible for a flight from London to San Salvador, you should look to book at least 11 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing San Salvador

Get insights into the airlines that provide service to San Salvador. 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 San Salvador. Reviews last updated 23 July 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andAir Canada from London to San Salvador by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,025 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

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
10,025 reviews
United Airlines
7.4
Good
10,025 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

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
7.1
Good
11,836 reviews
United Airlines
7.4
Good
10,025 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

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
11,377 reviews
United Airlines
7.4
Good
10,025 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

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
8,156 reviews
United Airlines
7.4
Good
10,025 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

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
2,520 reviews
United Airlines
7.4
Good
10,025 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

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

Find useful and relevant information for your journey from London to San Salvador. 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 into for flights to San Salvador from London?

    Most people fly into San Salvador El Salvador Intl (SAL) if they book a flight to San Salvador from London. On average, El Salvador Intl has 0 inbound flights from London 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 to San Salvador?

    Departing from London to San Salvador will take you 19h 15m. London and San Salvador are separated by a distance of 5431 mi. This flight may include one or multiple stops.

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

    Currently priced at £505, Avianca will fly you from London to San Salvador and back. In addition to Avianca, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from £559 and £591, respectively. Avianca is 25% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from London to San Salvador?

    The most popular route from London to San Salvador is London Heathrow - San Salvador El Salvador Intl. You may also consider London Gatwick - San Salvador El Salvador Intl or London City - San Salvador El Salvador Intl.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from London to San Salvador (average of £627). Flying from London to San Salvador in December is currently the most expensive (average of £763). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from London to San Salvador

Discover the top 4 airlines that operate flights from London to San Salvador. 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 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£505Average£612FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest£559Average£688FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£591Average£667FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£617Average£802FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to San Salvador?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Salvador from London today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to San Salvador.

Can Cheapflights find flights from London to San Salvador with no change fees?

Yes! Cheapflights helps users easily find flights from London to San Salvador with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Salvador from London today and book when prices fit your budget.

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