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Cheap flights from London to San Salvador from £398

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 29/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SAL
30 Jun — 7 Jul1
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 31 May 2026.

Mon 21/922:05
LHR
-
SAL
2 stops52h 00m
Avianca
Fri 25/912:05
SAL
-
LHR
1 stop20h 30m
Avianca
Deal found 29/5£614
Mon 21/913:20
LHR
-
SAL
2 stops28h 53m
Multiple Airlines
Fri 25/912:24
SAL
-
LHR
2 stops16h 51m
Multiple Airlines
Deal found 29/5£675
Sat 24/1012:15
LHR
-
SAL
2 stops29h 40m
Multiple Airlines
Sat 7/1115:22
SAL
-
LHR
1 stop14h 43m
Multiple Airlines
Deal found 29/5£676
Sun 31/522:05
LHR
-
SAL
1 stop20h 00m
Avianca
Sun 7/612:05
SAL
-
LHR
1 stop20h 30m
Avianca
Deal found 30/5£681
Tue 3/1121:40
LHR
-
SAL
1 stop19h 25m
Avianca
Mon 16/1112:05
SAL
-
LHR
1 stop20h 30m
Avianca
Deal found 28/5£682
Thu 25/622:05
LHR
-
SAL
1 stop20h 00m
Avianca
Thu 2/723:20
SAL
-
LHR
2 stops33h 15m
Avianca
Deal found 26/5£684
Thu 25/622:05
LHR
-
SAL
1 stop24h 35m
Avianca
Wed 8/712:05
SAL
-
LHR
1 stop20h 30m
Avianca
Deal found 26/5£685
Sat 24/1013:40
LHR
-
SAL
1 stop29h 39m
Lufthansa
Fri 6/1103:00
SAL
-
LHR
1 stop28h 30m
Lufthansa
Deal found 29/5£687
Thu 25/609:40
LGW
-
SAL
2 stops35h 35m
Multiple Airlines
Wed 8/708:15
SAL
-
LGW
2 stops26h 35m
Multiple Airlines
Deal found 26/5£850
Sat 24/1006:00
LGW
-
SAL
2 stops31h 15m
Multiple Airlines
Sat 7/1107:09
SAL
-
LGW
3 stops31h 01m
Multiple Airlines
Deal found 29/5£853
Fri 23/1011:35
STN
-
SAL
2 stops30h 30m
Multiple Airlines
Sat 7/1107:09
SAL
-
STN
3 stops33h 31m
Multiple Airlines
Deal found 29/5£857
Fri 30/1005:55
STN
-
SAL
2 stops35h 10m
Multiple Airlines
Sat 21/1107:09
SAL
-
STN
3 stops33h 31m
Multiple Airlines
Deal found 30/5£857

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 31 May 2026.

Round-trip from

£614

One-way from

£398

Popular in

December

Cheapest in

October

Average price

£617
Avianca
  • Avianca
  • 21/9-25/9
  • 3 total stops
  • 72h 30m total
  • London to San Salvador
Search Deals
29/6
  • 29/6
  • 3 total stops
  • 51h 20m total
  • London to San Salvador
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£28 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 May 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 31 May 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

Thu 25/6

22:05-15:40

1 stop24h 35m

San Salvador El Salvador Intl

Wed 8/7

12:05-15:35

1 stop20h 30m

£685

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Sat 24/10

06:55-14:24

2 stops38h 29m

San Salvador El Salvador Intl

Sat 7/11

06:55-09:40

2 stops20h 45m

£688
Fastest return journey

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Fri 12/6

06:50-21:35

2 stops21h 45m

San Salvador El Salvador Intl

Mon 15/6

13:50-11:35

1 stop14h 45m

£689

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Thu 9/7

06:55-20:49

2 stops20h 54m

San Salvador El Salvador Intl

Sat 18/7

01:15-09:00

2 stops24h 45m

£690

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Fri 18/9

10:00-20:49

1 stop17h 49m

San Salvador El Salvador Intl

Mon 21/9

02:00-10:10

1 stop25h 10m

£715

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Thu 25/6

16:00-12:15

2 stops27h 15m

San Salvador El Salvador Intl

Thu 2/7

15:40-05:55

2 stops31h 15m

£715

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Thu 25/6

16:00-12:15

2 stops27h 15m

San Salvador El Salvador Intl

Tue 7/7

01:15-05:55

2 stops21h 40m

£716

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Mon 3/8

07:45-21:35

1 stop20h 50m

San Salvador El Salvador Intl

Sat 15/8

15:40-07:45

1 stop33h 05m

£737

LondonSan Salvador

LHR - SAL

LHRSAL

London Heathrow

Fri 24/7

09:30-20:49

2 stops18h 19m

San Salvador El Salvador Intl

Sun 16/8

06:00-11:35

1 stop22h 35m

£738

LondonSan Salvador

LGW - SAL

LGWSAL

London Gatwick

Thu 25/6

09:40-14:15

2 stops35h 35m

San Salvador El Salvador Intl

Wed 8/7

08:15-17:50

2 stops26h 35m

£850

Flights are sorted by cheapest return flights first.

Deals found on 29/5

Showing 1-10 of 54 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, June is the cheapest month in which you can book a flight from London to San Salvador (average of £445). Flying from London to San Salvador in July is currently the most expensive (average of £576). 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?

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 35% 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 £496.

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 04m.

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 31 May 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
9,769 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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
9,769 reviews
United Airlines
7.4
Good
9,769 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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
11,644 reviews
United Airlines
7.4
Good
9,769 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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
11,107 reviews
United Airlines
7.4
Good
9,769 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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
8,033 reviews
United Airlines
7.4
Good
9,769 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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
2,527 reviews
United Airlines
7.4
Good
9,769 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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 24h 35m. 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 £501, 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 £554 and £582, respectively. Avianca is 24% 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 Stansted - 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, June is the cheapest month in which you can book a flight from London to San Salvador (average of £445). Flying from London to San Salvador in July is currently the most expensive (average of £576). 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 31 May 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£501Average£582FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest£554Average£676FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£587Average£660FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£619Average£795FlexibilityNo 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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