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Cheap flights from San Salvador to London 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAL — LON
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Salvador to London

Enter your travel dates to find the best prices.

Cheapest flights from San Salvador to London
Explore the most affordable flight options available from San Salvador to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Thu 16/414:04
SAL
-
LHR
1 stop16h 11m
KLM
Tue 26/511:15
LHR
-
SAL
1 stop32h 11m
KLM
Deal found 25/3£726
Mon 19/1008:45
SAL
-
LGW
1 stop18h 15m
Multiple Airlines
Mon 26/1009:00
LGW
-
SAL
2 stops29h 55m
Multiple Airlines
Deal found 28/3£729
Tue 14/414:04
SAL
-
LHR
1 stop33h 21m
KLM
Tue 26/511:15
LHR
-
SAL
1 stop32h 11m
KLM
Deal found 25/3£734
Thu 28/520:05
SAL
-
LHR
1 stop14h 10m
Iberia
Mon 8/606:15
LHR
-
SAL
1 stop19h 10m
Iberia
Deal found 28/3£739
Sat 23/513:20
SAL
-
LHR
2 stops37h 15m
United Airlines
Tue 26/507:25
LHR
-
SAL
2 stops20h 24m
United Airlines
Deal found 26/3£740
Tue 14/414:04
SAL
-
LHR
1 stop33h 21m
KLM
Sun 24/515:15
LHR
-
SAL
1 stop28h 11m
KLM
Deal found 25/3£740
Tue 15/907:13
SAL
-
STN
3 stops32h 27m
Multiple Airlines
Sat 26/911:15
STN
-
SAL
3 stops29h 40m
Multiple Airlines
Deal found 26/3£741
Tue 19/512:05
SAL
-
LHR
1 stop20h 30m
Avianca
Mon 1/622:05
LHR
-
SAL
1 stop24h 35m
Avianca
Deal found 25/3£749
Mon 20/414:04
SAL
-
LHR
2 stops20h 31m
KLM
Tue 28/415:15
LHR
-
SAL
1 stop28h 24m
KLM
Deal found 25/3£750
Tue 28/411:50
SAL
-
STN
3 stops29h 20m
Multiple Airlines
Tue 12/518:55
STN
-
SAL
2 stops27h 45m
Multiple Airlines
Deal found 28/3£752
Tue 28/406:00
SAL
-
LHR
1 stop22h 35m
United Airlines
Thu 30/409:30
LHR
-
SAL
2 stops19h 05m
United Airlines
Deal found 28/3£752
Tue 14/414:04
SAL
-
LHR
2 stops20h 31m
KLM
Wed 22/415:15
LHR
-
SAL
1 stop28h 24m
KLM
Deal found 25/3£758

Find flight deals from San Salvador to London

Discover tips and strategies to find the most affordable flight options for your journey from San Salvador (SAL) to London (LON). 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 30 March 2026.

Round-trip from

£726

One-way from

£394

Popular in

June

Cheapest in

September

Average price

£777
KLM
  • KLM
  • 21/4-1/5
  • 2 total stops
  • 65h 45m total
  • San Salvador to London
Search Deals
10/6
  • 10/6
  • 3 total stops
  • 30h 00m total
  • San Salvador to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Salvador to London 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 30 March 2026.
Use the filters below to find and compare flights from San Salvador to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 23/5

13:20-09:35

2 stops37h 15m

London Heathrow

Tue 26/5

07:25-20:49

2 stops20h 24m

£740

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 14/9

13:37-11:20

1 stop14h 43m

London Heathrow

Wed 23/9

13:25-12:22

1 stop29h 57m

£740

San SalvadorLondon

SAL - STN

SALSTN

San Salvador El Salvador Intl

Tue 15/9

07:13-22:40

3 stops32h 27m

London Stansted

Sat 26/9

11:15-09:55

3 stops29h 40m

£741

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Thu 16/4

14:04-13:15

1 stop16h 11m

London Heathrow

Mon 20/4

11:15-12:39

1 stop32h 24m

£779

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 12/9

13:37-13:15

1 stop16h 38m

London Heathrow

Sun 27/9

09:20-12:22

1 stop34h 02m

£786

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 24/4

14:04-17:50

2 stops20h 46m

London Heathrow

Fri 1/5

15:15-12:39

1 stop28h 24m

£793

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Fri 1/5

14:04-11:20

1 stop14h 16m

London Heathrow

Sat 9/5

13:25-12:26

1 stop30h 01m

£810

San SalvadorLondon

SAL - STN

SALSTN

San Salvador El Salvador Intl

Sun 10/5

07:09-23:20

3 stops33h 11m

London Stansted

Sun 17/5

07:35-23:36

2 stops23h 01m

£814

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 6/5

06:00-11:35

1 stop22h 35m

London Heathrow

Sun 10/5

12:10-04:50

2 stops47h 40m

£829

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Thu 16/4

21:45-20:40

1 stop15h 55m

London Heathrow

Mon 20/4

06:55-20:49

2 stops20h 54m

£832

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 59 resultsSorted by cheapest first
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Best time to book a flight from San Salvador to London

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

How much does it cost for a return flight from San Salvador to London?

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

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

Atlanta (ATL) – chosen by Cheapflights users on 58% of one-stop itineraries from San Salvador to London on Cheapflights.

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

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

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £691.

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

Shortest average travel time for one-stop one-way flights from San Salvador to London, 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: 14h 29m.

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

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

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average stopover time of 2h 33m.

Related info for your journey

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

    For a flight from San Salvador to London, you will be flying from El Salvador Intl. San Salvador El Salvador Intl (SAL) is just 20.5 mi from the center of the city. El Salvador Intl is the only San Salvador airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from San Salvador El Salvador Intl on a regular basis.

  • How long is the flight from San Salvador to London?

    Airlines like United Airlines, KLM, and Iberia fly from San Salvador to London in about 14h 43m. The time it takes to get you to your destination can typically vary by up to 22h 32m. The distance between San Salvador and London is about 5431 mi. This flight may include one or multiple stops.

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

    While some choose either San Salvador El Salvador Intl - London Gatwick or San Salvador El Salvador Intl - London City, San Salvador El Salvador Intl - London Heathrow is the most popular route from San Salvador to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Salvador to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for San Salvador to London

See prices for flight routes from nearby airports that may be better suited for you.
San Salvador to Heathrow flights
San Salvador to Gatwick flights
San Salvador to Edinburgh 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 San Salvador to London?

Cheapflights helps you search for flights from San Salvador to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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 San Salvador to London.

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

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

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

Not ready to book yet? You can track prices for flights from San Salvador to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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