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

Currently priced at £648, KLM will fly you from San Salvador to London Heathrow Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Avianca and Air Canada - these airlines can fly you to your destination from £746 and £764, respectively. Users have found that KLM is 3% cheaper than the other options available to this destination.

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

The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as £324. However, be on the lookout for offers from KLM and Air Canada, as they are both options that can get you from San Salvador to London Heathrow Airport for a low price.

What is the cheapest day to fly from San Salvador to London Heathrow Airport?

Travellers seeking maximum savings on their San Salvador to London Heathrow Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from San Salvador to London Heathrow Airport?

Saturday is generally a great day to depart. Flying on this day could help you save up to 73%.

What is the cheapest month to fly from San Salvador to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, September can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from San Salvador in September are about £633 on average during September, but can be found for as low as £536.

What airport do you fly from for flights from San Salvador to London Heathrow?

Located just 20.5 mi from the city center, San Salvador El Salvador Intl is the airport most travelers will use when flying to London Heathrow from San Salvador. Booking flights from El Salvador Intl (SAL) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.

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

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

How can I find direct flights from San Salvador to Heathrow?

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

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

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

£287+ Flights from San Salvador to London Heathrow Airport

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

To save on the cost of your flight from San Salvador to London Heathrow Airport, book at least 36 days before your planned departure. Booking around this time can save you about 17% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £567 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £673.

Cheapflights Tip: The best prices from San Salvador El Salvador Intl to London Heathrow are usually found in August or September, booked 14 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from San Salvador to Heathrow

Round-trip from	£593
One-way from	£287
Popular in	June
Cheapest in	August
Average price	£852

7/9-23/9
5 total stops
65h 58m total
San Salvador to London

Search Deals

9/7
3 total stops
29h 20m total
San Salvador to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£89 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from San Salvador to Heathrow

Cheapest flights from San Salvador to Heathrow
Explore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sun 7/901:22SAL - LHR

3 stops34h 28mMultiple Airlines

Tue 23/906:00LHR - SAL

2 stops31h 30mMultiple Airlines

Deal found 12/6£593

Sun 28/913:34SAL - LHR

1 stop16h 56mKLM

Sun 5/1017:25LHR - SAL

1 stop25h 45mKLM

Deal found 12/6£648

Fri 13/613:25SAL - LHR

1 stop15h 10mUnited Airlines

Sun 15/608:30LHR - SAL

2 stops20h 05mUnited Airlines

Deal found 12/6£726

Wed 5/1108:30SAL - LHR

2 stops24h 05mAvianca

Mon 17/1121:40LHR - SAL

1 stop23h 25mAvianca

Deal found 12/6£746

Wed 10/915:30SAL - LHR

2 stops32h 05mAir Canada

Tue 16/915:50LHR - SAL

2 stops27h 16mAir Canada

Deal found 11/6£764

Fri 19/1221:00SAL - LHR

1 stop29h 25mIberia

Fri 2/117:25LHR - SAL

2 stops32h 05mIberia

Deal found 11/6£1,052

Sat 5/706:00SAL - LHR

2 stops18h 40mAmerican Airlines

Mon 14/719:05LHR - SAL

2 stops23h 25mAmerican Airlines

Deal found 11/6£1,124

Best flights from San Salvador to Heathrow
Discover carefully curated flight deals from San Salvador to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 June 2025.

Sun 7/901:22SAL - LHR

3 stops34h 28mMultiple Airlines

Tue 23/906:00LHR - SAL

2 stops31h 30mMultiple Airlines

Deal found 12/6£593

Sun 28/913:34SAL - LHR

1 stop16h 56mKLM

Sun 5/1017:25LHR - SAL

1 stop25h 45mKLM

Deal found 10/6£648

Wed 5/1108:30SAL - LHR

2 stops24h 05mAvianca

Mon 17/1121:40LHR - SAL

1 stop23h 25mAvianca

Deal found 12/6£746

Wed 10/915:30SAL - LHR

2 stops32h 05mAir Canada

Tue 16/915:50LHR - SAL

2 stops27h 16mAir Canada

Deal found 11/6£764

Mon 1/1216:40SAL - LHR

2 stops31h 50mUnited Airlines

Fri 5/1207:40LHR - SAL

2 stops19h 39mUnited Airlines

Deal found 11/6£799

Sun 29/612:30SAL - LHR

1 stop15h 05mIberia

Sun 13/712:15LHR - SAL

1 stop14h 41mIberia

Deal found 9/6£1,035

Sat 5/712:30SAL - LHR

2 stops17h 00mAmerican Airlines

Mon 14/719:05LHR - SAL

2 stops23h 25mAmerican Airlines

Deal found 12/6£1,124

Wed 10/909:25SAL - LHR

3 stops28h 25mTurkish Airlines

Tue 16/922:25LHR - SAL

2 stops38h 35mTurkish Airlines

Deal found 12/6£1,279

Last-minute flights from San Salvador to Heathrow
Discover last-minute flight deals from San Salvador to Heathrow. Data last updated 13 June 2025 and is based on user searches.

Fri 13/613:25SAL - LHR

1 stop15h 10mUnited Airlines

Sun 15/608:30LHR - SAL

2 stops20h 05mUnited Airlines

Deal found 12/6£726

Fri 13/608:10SAL - LHR

1 stop17h 25mAir Canada

Fri 20/606:00LHR - SAL

2 stops21h 15mAir Canada

Deal found 12/6£800

Sat 21/601:15SAL - LHR

1 stop23h 25mUnited Airlines

Wed 2/709:30LHR - SAL

2 stops18h 13mUnited Airlines

Deal found 10/6£802

Sun 22/613:44SAL - LHR

1 stop16h 46mKLM

Wed 2/713:05LHR - SAL

1 stop30h 24mKLM

Deal found 11/6£719

Sun 22/612:30SAL - LHR

2 stops17h 00mAmerican Airlines

Wed 2/709:45LHR - SAL

2 stops16h 59mAmerican Airlines

Deal found 10/6£1,145

Sun 22/613:40SAL - LHR

2 stops25h 45mTurkish Airlines

Wed 2/722:25LHR - SAL

3 stops32h 12mTurkish Airlines

Deal found 10/6£2,151

Fri 27/612:30SAL - LHR

1 stop15h 05mIberia

Sun 3/812:15LHR - SAL

1 stop14h 41mIberia

Deal found 11/6£1,095

Fri 27/609:25SAL - LHR

1 stop23h 10mAvianca

Sun 3/822:05LHR - SAL

1 stop14h 55mAvianca

Deal found 12/6£1,247

Tue 1/707:35SAL - LHR

2 stops17h 05mMultiple Airlines

Thu 10/713:40LHR - SAL

2 stops23h 45mMultiple Airlines

Deal found 11/6£789

Sat 5/712:30SAL - LHR

2 stops17h 00mAmerican Airlines

Mon 14/719:05LHR - SAL

2 stops23h 25mAmerican Airlines

Deal found 12/6£1,124

Thu 31/709:25SAL - LHR

3 stops28h 25mTurkish Airlines

Mon 11/822:25LHR - SAL

3 stops32h 12mTurkish Airlines

Deal found 11/6£1,601

One-way flights from San Salvador to Heathrow
Search for one-way flight options from San Salvador to Heathrow. Find affordable one-way fares based on user searches. Data last updated 13 June 2025.

Wed 9/709:40SAL - LHR

3 stops29h 20mMultiple Airlines

Deal found 11/6£287

Sun 6/712:20SAL - LHR

2 stops20h 15mAvianca

Deal found 12/6£324

Sat 13/913:34SAL - LHR

1 stop14h 36mKLM

Deal found 10/6£461

Tue 8/701:15SAL - LHR

2 stops22h 20mAir Canada

Deal found 12/6£476

Fri 12/902:00SAL - LHR

1 stop26h 10mUnited Airlines

Deal found 10/6£496

Sun 21/909:25SAL - LHR

3 stops30h 00mTurkish Airlines

Deal found 10/6£612

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Salvador to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 7/9

01:22-18:50

3 stops34h 28m

London Heathrow

Tue 23/9

06:00-06:30

2 stops31h 30m

£593

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 28/9

13:34-13:30

1 stop16h 56m

London Heathrow

Sun 5/10

17:25-12:10

1 stop25h 45m

£648

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 5/11

08:30-14:35

2 stops24h 05m

London Heathrow

Mon 17/11

21:40-15:05

1 stop23h 25m

£746

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 10/9

15:30-06:35

2 stops32h 05m

London Heathrow

Tue 16/9

15:50-12:06

2 stops27h 16m

£764

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Mon 1/12

16:40-06:30

2 stops31h 50m

London Heathrow

Fri 5/12

07:40-21:19

2 stops19h 39m

£799

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 29/6

12:30-10:35

1 stop15h 05m

London Heathrow

Sun 13/7

12:15-19:56

1 stop14h 41m

£1,035

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sat 5/7

12:30-12:30

2 stops17h 00m

London Heathrow

Mon 14/7

19:05-11:30

2 stops23h 25m

£1,124

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 10/9

09:25-20:50

3 stops28h 25m

London Heathrow

Tue 16/9

22:25-06:00

2 stops38h 35m

£1,279

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Wed 9/7

09:40-22:00

3 stops29h 20m

£287

San SalvadorLondon

SAL - LHR

SALLHR

San Salvador El Salvador Intl

Sun 6/7

12:20-15:35

2 stops20h 15m

£324

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 14 results

Best time to book a flight from San Salvador to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

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

The best time to book flights from San Salvador to London Heathrow Airport is 14 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from San Salvador to London Heathrow Airport (average of £112). Flying from San Salvador to London Heathrow Airport in August is currently the most expensive (average of £164). 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 SAL to LHR?

It’s typically best to fly out from San Salvador to London Heathrow Airport at midday. Doing so could potentially save you 45% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with KLM, United Airlines and Turkish Airlines from San Salvador to London by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,358 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

KLM

7.8

Good

1,358 reviews

KLM

7.8

Good

1,358 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Allan,Jun 2025

YYZ - AMS

United Airlines

7.4

Good

8,790 reviews

KLM

7.8

Good

1,358 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Allan,Jun 2025

YYZ - AMS

Turkish Airlines

7.3

Good

3,849 reviews

KLM

7.8

Good

1,358 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Allan,Jun 2025

YYZ - AMS

American Airlines

7.2

Good

10,000 reviews

KLM

7.8

Good

1,358 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Allan,Jun 2025

YYZ - AMS

Air Canada

7.1

Good

9,539 reviews

KLM

7.8

Good

1,358 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Allan,Jun 2025

YYZ - AMS

Related info for your journey

What airport do you fly from for flights from San Salvador to London Heathrow?
Located just 20.5 mi from the city center, San Salvador El Salvador Intl is the airport most travelers will use when flying to London Heathrow from San Salvador. Booking flights from El Salvador Intl (SAL) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.
What are the cheapest airlines flying from San Salvador to London Heathrow Airport round-trip?
Currently priced at £648, KLM will fly you from San Salvador to London Heathrow Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Avianca and Air Canada - these airlines can fly you to your destination from £746 and £764, respectively. Users have found that KLM is 3% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from San Salvador to London Heathrow Airport one-way?
The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as £324. However, be on the lookout for offers from KLM and Air Canada, as they are both options that can get you from San Salvador to London Heathrow Airport for a low price.
Can I find deals for flights from San Salvador to Heathrow that include hotel bookings?
Yes. In addition to deals on San Salvador to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Salvador to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Salvador to Heathrow.
Can I find deals for business class flights from San Salvador to Heathrow?
Yes. Cheapflights offers flight deals from San Salvador to Heathrow 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 San Salvador to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from San Salvador to London Heathrow Airport (average of £112). Flying from San Salvador to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

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Top 2 airlines flying from San Salvador to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£541	Average£588	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Iberia	Cheapest£778	Average£867	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

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

Cheapflights makes it easy to find San Salvador to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from San Salvador to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Heathrow from San Salvador? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for San Salvador to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from San Salvador to London Heathrow Airport from £287

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from San Salvador El Salvador Intl to London Heathrow are usually found in August or September, booked 14 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from San Salvador to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Salvador to Heathrow

Cheapest flights from San Salvador to HeathrowExplore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Explore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Salvador to London Heathrow Airport that are best for you.

Best time to book a flight from San Salvador to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Salvador with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Salvador to London Heathrow Airport

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

Use this chart to determine the optimal time to book a return flight from San Salvador to Heathrow. Price data was last updated on 9 June 2025.

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

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

Find hourly flight availability from San Salvador to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

Related info for your journey

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

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

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

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

How can I find direct flights from San Salvador to Heathrow?

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

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

Travelling to a place near San Salvador?

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.

Alternative routes for San Salvador to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from San Salvador to Heathrow

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 Heathrow?

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

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

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

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Cheapest flights from San Salvador to Heathrow
Explore the most affordable flight options available from San Salvador to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.