Cheap flights from London Heathrow Airport to San Salvador from £347
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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAL
22 Jan — 29 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to San Salvador El Salvador Intl are usually found in March or September, booked 79 days in advance, depart on a Wednesday or Monday and return on a Friday
Cheap flight deals from Heathrow to San Salvador
Enter your travel dates to find the best prices.
Cheapest flights from Heathrow to San Salvador
Explore the most affordable flight options available from Heathrow to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2025.
Thu 25/1212:05LHR - SAL
1 stop18h 31mLufthansa
Fri 16/106:55SAL - LHR
2 stops17h 25mLufthansa
Deal found 21/12£689
Fri 26/1210:00LHR - SAL
1 stop20h 36mUnited Airlines
Tue 30/1223:54SAL - LHR
1 stop15h 26mUnited Airlines
Deal found 21/12£725
Fri 26/1213:00LHR - SAL
1 stop27h 50mAir Canada
Tue 30/1208:15SAL - LHR
1 stop21h 05mAir Canada
Deal found 22/12£895
Thu 25/1210:25LHR - SAL
2 stops20h 11mUnited Airlines
Fri 16/106:55SAL - LHR
2 stops17h 00mUnited Airlines
Deal found 22/12£897
Tue 30/1210:45LHR - SAL
1 stop32h 22mKLM
Sat 3/114:32SAL - LHR
1 stop33h 53mKLM
Deal found 21/12£1,083
Tue 30/1211:35LHR - SAL
2 stops19h 01mUnited Airlines
Fri 2/102:00SAL - LHR
2 stops21h 55mUnited Airlines
Deal found 21/12£1,514
Tue 30/1209:00LHR - SAL
3 stops35h 47mMultiple Airlines
Sat 3/114:44SAL - LHR
2 stops35h 46mMultiple Airlines
Deal found 21/12£1,616
Best flights from Heathrow to San Salvador
Discover carefully curated flight deals from Heathrow to San Salvador that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 December 2025.
Mon 16/321:40LHR - SAL
1 stop19h 25mAvianca
Mon 23/312:05SAL - LHR
1 stop20h 30mAvianca
Deal found 21/12£570
Sat 14/213:35LHR - SAL
2 stops29h 44mUnited Airlines
Sat 21/216:40SAL - LHR
1 stop32h 50mUnited Airlines
Deal found 22/12£627
Tue 17/221:40LHR - SAL
1 stop19h 25mAvianca
Mon 16/308:00SAL - LHR
1 stop24h 35mAvianca
Deal found 21/12£570
Thu 5/312:45LHR - SAL
2 stops23h 00mUnited Airlines
Mon 9/315:40SAL - LHR
2 stops32h 15mUnited Airlines
Deal found 20/12£627
Thu 5/321:40LHR - SAL
1 stop19h 25mAvianca
Mon 9/308:00SAL - LHR
1 stop24h 35mAvianca
Deal found 20/12£600
Last-minute flights from Heathrow to San Salvador
Discover last-minute flight deals from Heathrow to San Salvador. Data last updated 23 December 2025 and is based on user searches.
Thu 25/1212:05LHR - SAL
1 stop15h 14mLufthansa
Fri 16/114:50SAL - LHR
2 stops23h 45mLufthansa
Deal found 22/12£689
Wed 7/116:20LHR - SAL
2 stops26h 59mUnited Airlines
Wed 14/116:40SAL - LHR
1 stop35h 35mUnited Airlines
Deal found 22/12£703
Mon 12/109:00LHR - SAL
2 stops19h 19mMultiple Airlines
Fri 30/107:34SAL - LHR
2 stops32h 06mMultiple Airlines
Deal found 22/12£573
Mon 19/117:00LHR - SAL
2 stops25h 31mAmerican Airlines
Mon 26/115:21SAL - LHR
1 stop14h 54mAmerican Airlines
Deal found 21/12£634
Mon 19/115:20LHR - SAL
1 stop20h 25mUnited Airlines
Mon 26/106:55SAL - LHR
1 stop18h 35mUnited Airlines
Deal found 21/12£655
Mon 26/121:40LHR - SAL
2 stops51h 25mAvianca
Fri 30/112:05SAL - LHR
1 stop20h 30mAvianca
Deal found 21/12£617
Mon 26/117:00LHR - SAL
2 stops25h 31mAmerican Airlines
Fri 30/115:49SAL - LHR
2 stops21h 11mAmerican Airlines
Deal found 21/12£637
One-way flights from Heathrow to San Salvador
Search for one-way flight options from Heathrow to San Salvador. Find affordable one-way fares based on user searches. Data last updated 23 December 2025.
Wed 13/520:50LHR - SAL
2 stops40h 05mMultiple Airlines
Deal found 22/12£347
Fri 1/520:50LHR - SAL
2 stops40h 10mMultiple Airlines
Deal found 21/12£357
Thu 19/215:30LHR - SAL
3 stops25h 35mMultiple Airlines
Deal found 22/12£386
Thu 19/221:40LHR - SAL
1 stop24h 00mAvianca
Deal found 22/12£493
Sat 13/622:05LHR - SAL
1 stop25h 15mAvianca
Deal found 21/12£526
Wed 7/114:50LHR - SAL
3 stops57h 24mMultiple Airlines
Deal found 22/12£532
Find flight deals from Heathrow to San Salvador
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 December 2025.
Customise your flight search to find flights from Heathrow 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 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Salvador that are best for you.
Fly from
Heathrow
Fly to
San Salvador
Route
Depart
Return
Price
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Mon 16/3
21:40-11:05
1 stop19h 25m
San Salvador El Salvador Intl
Mon 23/3
12:05-14:35
1 stop20h 30m
£570
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Tue 17/2
21:40-11:05
1 stop19h 25m
San Salvador El Salvador Intl
Mon 16/3
08:00-14:35
1 stop24h 35m
£570
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Thu 5/3
21:40-11:05
1 stop19h 25m
San Salvador El Salvador Intl
Mon 9/3
08:00-14:35
1 stop24h 35m
£600
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Sat 14/2
13:35-13:19
2 stops29h 44m
San Salvador El Salvador Intl
Sat 21/2
16:40-07:30
1 stop32h 50m
£627
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Thu 5/3
12:45-05:45
2 stops23h 00m
San Salvador El Salvador Intl
Mon 9/3
15:40-05:55
2 stops32h 15m
£627
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Wed 13/5
20:50-05:55
2 stops40h 05m
£347
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Fri 1/5
20:50-06:00
2 stops40h 10m
£357
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Thu 19/2
15:30-11:05
3 stops25h 35m
£386
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Thu 19/2
21:40-15:40
1 stop24h 00m
£493
LondonSan Salvador
LHR - SAL
LHRSAL
London Heathrow
Sat 13/6
22:05-16:20
1 stop25h 15m
£526
Flights are sorted by cheapest return flights first.
Deals found on 22/12
Showing 1-10 of 12 results
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Best time to book a flight from Heathrow to San Salvador
Have a flexible travel schedule? Discover the best time to fly to San Salvador from Heathrow 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 Heathrow Airport to San Salvador
Prices
More
How far ahead should I book a flight from London Heathrow Airport to San Salvador?
Use this chart to determine the optimal time to book a return flight from Heathrow to San Salvador. Price data was last updated on 19 December 2025.
Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to San Salvador. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to San Salvador?
Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to San Salvador (average of £491). Flying from London Heathrow Airport to San Salvador in May is currently the most expensive (average of £610). 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 LHR to SAL?
Find hourly flight availability from Heathrow 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 23 December 2025.
It’s optimal to fly from London Heathrow Airport to San Salvador at midday. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the evening.
How much does it cost for a return flight from London Heathrow Airport to San Salvador?
What’s the top stopover airport for flights from London Heathrow Airport to San Salvador?
Share of one-stop return flights from London Heathrow Airport 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 58% of one-stop itineraries from London Heathrow Airport to San Salvador on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to San Salvador?
Average return fare for one-stop flights from London Heathrow Airport 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 £497.
What’s the fastest stopover option from London Heathrow Airport to San Salvador?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport 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 Heathrow Airport to San Salvador?
Average stopover duration for one-stop one-way flights from London Heathrow Airport 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 18m.
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 December 2025.
Check out reviews from past customers who have flown with KLM, United Airlines, andAir Canada from London Heathrow Airport to San Salvador to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Not literally sitting in the very last row in the middle
Related info for your journey
Find useful and relevant information for your journey from Heathrow 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 Heathrow?
Most people fly into San Salvador El Salvador Intl (SAL) if they book a flight to San Salvador from London Heathrow. On average, El Salvador Intl has 0 inbound flights from London Heathrow per day from 5 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 Heathrow Airport to San Salvador?
Airlines like Avianca fly from London Heathrow Airport to San Salvador in about 19h 25m. The time it takes to get you to your destination can typically vary by up to . There are 5431 mi between London Heathrow Airport and San Salvador.
What are the cheapest airlines flying from London Heathrow Airport to San Salvador round-trip?
Flying on Avianca is currently your cheapest option to San Salvador, with prices starting at £492. Additional return tickets that might be worth considering are offered by United Airlines and KLM, with the lowest prices starting at £545 and £549, respectively. These flights start at 22% lower than the current average price 3 months from now.
Can I find deals for business class flights from Heathrow to San Salvador?
Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to San Salvador?
Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to San Salvador (average of £491). Flying from London Heathrow Airport to San Salvador in May is currently the most expensive (average of £610). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 23 December 2025.
Explore flights to San Salvador departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 23 December 2025.
Top 5 airlines flying from Heathrow to San Salvador
Discover the top 5 airlines that operate flights from Heathrow 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 December 2025.
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 Heathrow to San Salvador?
Deals for Heathrow to San Salvador flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Salvador?
Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to San Salvador 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 Heathrow to San Salvador with no change fees?
Yes, we can. To see specific flights from Heathrow to San Salvador with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Heathrow to San Salvador become cheaper?
Yes, Cheapflights offers price alerts on Heathrow to San Salvador flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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