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Cheap flights from London to San Salvador from £440

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAL
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to San Salvador El Salvador Intl are usually found in February or March, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap 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 7 November 2025.

Round-trip from

£477

One-way from

£440

Popular in

December

Cheapest in

February

Average price

£639
United Airlines
  • United Airlines
  • 4/12-10/12
  • 3 total stops
  • 42h 51m total
  • London to San Salvador
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14/12
  • 14/12
  • 3 total stops
  • 35h 43m total
  • London to San Salvador
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£37 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find 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 7 November 2025.

Thu 4/1207:30LHR - SAL
2 stops20h 21mUnited Airlines
Thu 11/1206:55SAL - LHR
2 stops22h 10mUnited Airlines
Deal found 6/11£477
Sun 16/1112:05LHR - SAL
1 stop15h 14mUnited Airlines
Sat 13/1223:54SAL - LHR
1 stop14h 41mUnited Airlines
Deal found 5/11£502
Mon 24/1112:05LHR - SAL
1 stop15h 14mUnited Airlines
Mon 15/1206:55SAL - LHR
1 stop21h 20mUnited Airlines
Deal found 7/11£503
Sat 22/1115:35LHR - SAL
2 stops26h 45mAmerican Airlines
Mon 8/1206:00SAL - LHR
2 stops19h 20mAmerican Airlines
Deal found 5/11£506
Mon 24/1116:30LHR - SAL
2 stops27h 58mMultiple Airlines
Mon 15/1213:26SAL - LHR
1 stop16h 39mMultiple Airlines
Deal found 7/11£509
Wed 19/1109:30LHR - SAL
2 stops19h 17mUnited Airlines
Mon 8/1223:54SAL - LHR
1 stop14h 41mUnited Airlines
Deal found 5/11£564
Fri 21/1112:05LHR - SAL
1 stop33h 19mUnited Airlines
Tue 9/1223:54SAL - LHR
1 stop14h 41mUnited Airlines
Deal found 5/11£587
Wed 19/1112:05LHR - SAL
1 stop15h 14mUnited Airlines
Fri 12/1223:54SAL - LHR
1 stop14h 41mUnited Airlines
Deal found 5/11£588
Mon 8/1206:30LHR - SAL
2 stops21h 21mUnited Airlines
Sat 27/1206:55SAL - LHR
1 stop18h 35mUnited Airlines
Deal found 5/11£589
Thu 25/1206:50LHR - SAL
2 stops21h 01mUnited Airlines
Fri 16/116:40SAL - LHR
2 stops32h 00mUnited Airlines
Deal found 6/11£590
Thu 4/1214:00LGW - SAL
2 stops30h 48mMultiple Airlines
Thu 11/1219:05SAL - LGW
2 stops32h 55mMultiple Airlines
Deal found 6/11£616
Thu 4/1219:10LCY - SAL
2 stops32h 41mMultiple Airlines
Thu 11/1206:55SAL - LCY
3 stops24h 00mMultiple Airlines
Deal found 6/11£690

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 7 November 2025.
Use the filters below to find and compare flights from London to San Salvador that are best for you.

Fly from

London

Fly to

San Salvador

Route

Depart

Return

Price

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Thu 4/12

08:30-21:51

2 stops19h 21m

San Salvador El Salvador Intl

Wed 10/12

01:10-06:40

1 stop23h 30m

£477

LondonSan Salvador

LGW - SAL

LGWSAL

London Gatwick

Fri 6/2

11:20-12:31

2 stops55h 11m

San Salvador El Salvador Intl

Tue 10/2

13:31-09:00

2 stops37h 29m

£480

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Mon 17/11

12:05-21:19

1 stop15h 14m

San Salvador El Salvador Intl

Fri 12/12

23:54-20:35

1 stop14h 41m

£502

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Mon 17/11

10:00-21:19

1 stop17h 19m

San Salvador El Salvador Intl

Sat 13/12

06:55-10:25

2 stops21h 30m

£502

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Mon 17/11

12:50-22:47

1 stop15h 57m

San Salvador El Salvador Intl

Mon 8/12

06:55-07:55

2 stops19h 00m

£502

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Mon 24/11

12:05-21:19

1 stop15h 14m

San Salvador El Salvador Intl

Mon 15/12

06:55-10:15

1 stop21h 20m

£503

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 22/11

14:45-12:20

2 stops27h 35m

San Salvador El Salvador Intl

Thu 11/12

13:26-12:05

1 stop16h 39m

£506

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 14/2

10:00-21:19

1 stop17h 19m

San Salvador El Salvador Intl

Sat 21/2

16:40-05:55

2 stops31h 15m

£506

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Mon 30/3

13:05-04:50

1 stop22h 45m

San Salvador El Salvador Intl

Sat 11/4

15:30-06:55

2 stops32h 25m

£506

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Wed 11/2

10:00-21:19

1 stop17h 19m

San Salvador El Salvador Intl

Sat 21/2

06:55-07:30

1 stop18h 35m

£506

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 41 results
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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

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

Use this chart to determine the optimal time to book a return flight from London to San Salvador. Price data was last updated on 31 October 2025.

To ensure you get the cheapest price possible for a flight from London to San Salvador, you should look to book at least 63 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.

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

Currently, October is the cheapest month in which you can book a flight from London to San Salvador (average of £499). Flying from London to San Salvador in May is currently the most expensive (average of £626). 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.

What is the cheapest time of day to fly from LON to SAL?

Find hourly flight availability from London to San Salvador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

When flying from London to San Salvador, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 32% versus a flight in the evening.

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.

Toronto (YYZ) – chosen by Cheapflights users on 44% 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.

Bogotá (BOG) is the most affordable one-stop option, with an average return flight price of £589.

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 08m.

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 Miami (MIA) offer the fastest connection on this route, with an average stopover time of 2h 15m.

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 7 November 2025.
Get a feel of what it's like to fly with KLM, United 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.
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Overall

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Overall

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,007 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Overall

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Air Canada
7.1
Good
10,416 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Overall

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,558 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Overall

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Avianca
6.6
Okay
2,468 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Overall

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 6 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 21m. 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 KLM and United Airlines - these airlines can fly you to your destination from £564 and £566, respectively. Avianca is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London to San Salvador one-way?

    £515 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on KLM and Iberia, with prices starting from £679 and £777, respectively.

  • 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, October is the cheapest month in which you can book a flight from London to San Salvador (average of £499). Flying from London to San Salvador in May is currently the most expensive (average of £626). 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 6 airlines flying from London to San Salvador

Discover the top 6 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£505Average£595FlexibilityNo cancel feeOn-time71%
Search Avianca flights
KLMCheapest£564Average£609FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£566Average£632FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£568Average£629FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£609Average£785FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
IberiaCheapest£1,116Average£1,262FlexibilityNo cancel feeOn-time77%
Search Iberia 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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