Cheap flights from London Heathrow Airport to Santiago from £340

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SCL
20 Mar — 27 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Santiago Arturo Merino Benitez are usually found in September or November, booked 74 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from Heathrow to Santiago

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Santiago
Explore the most affordable flight options available from Heathrow to Santiago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 February 2026.

Mon 16/309:55
LHR
-
SCL
1 stop27h 15m
Multiple Airlines
Sat 21/311:55
SCL
-
LHR
1 stop18h 15m
Multiple Airlines
Deal found 17/2£787
Tue 10/317:25
LHR
-
SCL
1 stop18h 55m
Iberia
Tue 17/313:05
SCL
-
LHR
1 stop24h 30m
Iberia
Deal found 17/2£796
Thu 12/1112:05
LHR
-
SCL
2 stops51h 10m
Air Canada
Thu 19/1120:55
SCL
-
LHR
2 stops44h 40m
Air Canada
Deal found 17/2£796
Tue 10/1106:05
LHR
-
SCL
1 stop19h 35m
British Airways
Tue 17/1113:05
SCL
-
LHR
Nonstop14h 20m
British Airways
Deal found 17/2£797
Wed 2/1208:25
LHR
-
SCL
1 stop17h 15m
Iberia
Sun 20/1213:05
SCL
-
LHR
1 stop17h 10m
Iberia
Deal found 17/2£799
Mon 23/318:00
LHR
-
SCL
1 stop20h 15m
Air Canada
Sun 12/400:30
SCL
-
LHR
2 stops27h 05m
Air Canada
Deal found 16/2£800
Mon 14/917:10
LHR
-
SCL
1 stop19h 15m
Iberia
Sun 20/923:00
SCL
-
LHR
1 stop16h 10m
Iberia
Deal found 16/2£801
Mon 16/320:15
LHR
-
SCL
1 stop18h 25m
LATAM Airlines
Mon 23/318:40
SCL
-
LHR
1 stop16h 25m
LATAM Airlines
Deal found 16/2£801
Thu 5/316:20
LHR
-
SCL
2 stops43h 30m
United Airlines
Sun 15/321:45
SCL
-
LHR
1 stop33h 30m
United Airlines
Deal found 15/2£802
Tue 24/318:00
LHR
-
SCL
1 stop20h 15m
Air Canada
Sun 12/400:30
SCL
-
LHR
2 stops25h 05m
Air Canada
Deal found 14/2£803
Sat 7/319:40
LHR
-
SCL
1 stop27h 50m
LATAM Airlines
Mon 30/1116:25
SCL
-
LHR
1 stop18h 40m
LATAM Airlines
Deal found 18/2£804

Find flight deals from Heathrow to Santiago

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Santiago (SCL). 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 18 February 2026.

Round-trip from

£787

One-way from

£340

Popular in

December

Cheapest in

September

Average price

£970

Good round-trip deal

£823 or less

Good one-way deal

£751 or less
16/3-21/3
  • 16/3-21/3
  • 2 total stops
  • 45h 30m total
  • London to Santiago
14/4
  • 14/4
  • 2 total stops
  • 37h 45m total
  • London to Santiago
Highest demand for flights based on searches. 3% potential increase in price (£22 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from London Heathrow to Santiago Arturo Merino Benitez.
Price to beat on a one-way flight from London Heathrow to Santiago Arturo Merino Benitez.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Santiago 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 18 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Santiago that are best for you.

Fly from

Heathrow

Fly to

Santiago

Route

Depart

Return

Price

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Tue 17/3

07:25-07:50

2 stops27h 25m

Santiago Arturo Merino Benitez

Fri 27/3

21:45-11:20

2 stops34h 35m

£801

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sat 16/5

16:30-07:25

1 stop19h 55m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-17:15

1 stop25h 35m

£815

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Thu 14/5

10:50-07:25

1 stop25h 35m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-17:15

1 stop25h 35m

£815

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Fri 15/5

06:15-20:40

1 stop19h 25m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-17:15

1 stop25h 35m

£815

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Tue 12/5

06:15-20:40

1 stop19h 25m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-17:15

1 stop25h 35m

£815

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sun 17/5

06:15-20:20

1 stop19h 05m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-17:15

1 stop25h 35m

£815

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Mon 18/5

21:55-07:30

Nonstop14h 35m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-17:15

1 stop25h 35m

£835

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Fri 15/5

06:15-20:30

1 stop19h 15m

Santiago Arturo Merino Benitez

Sun 24/5

22:00-19:10

1 stop16h 10m

£846

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Mon 9/3

13:35-07:50

2 stops45h 15m

Santiago Arturo Merino Benitez

Sun 22/3

21:45-07:30

1 stop30h 45m

£852

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Thu 5/3

12:05-08:50

1 stop23h 45m

Santiago Arturo Merino Benitez

Thu 12/3

21:45-10:50

2 stops58h 05m

£853

Flights are sorted by cheapest return flights first.

Deals found on 15/2

Showing 1-10 of 22 results
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Best time to book a flight from Heathrow to Santiago

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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Santiago. Price data was last updated on 13 February 2026.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Santiago, you should look to book at least 74 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 Heathrow Airport to Santiago?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Santiago (average of £586). Flying from London Heathrow Airport to Santiago in July is currently the most expensive (average of £842). 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 SCL?

Find hourly flight availability from Heathrow to Santiago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 February 2026.

When flying from London Heathrow Airport to Santiago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Santiago

Get insights into the airlines that provide service to Santiago. 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 Santiago. Reviews last updated 18 February 2026.
Read reviews from past customers who have flown with LATAM Airlines, Air France, andAir Canada from London Heathrow Airport to Santiago. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Crew

8.0

Overall

7.5

Food

6.7

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Comfort

7.3

Crew

8.0

Overall

7.5

Food

6.7

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Comfort

7.3

Crew

8.0

Overall

7.5

Food

6.7

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Comfort

7.3

Crew

8.0

Overall

7.5

Food

6.7

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Comfort

7.3

Crew

8.0

Overall

7.5

Food

6.7

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Comfort

7.3

Crew

8.0

Overall

7.5

Food

6.7

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Santiago. 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 Santiago from London Heathrow?

    For a flight from London Heathrow to Santiago, you will be flying into Arturo Merino Benitez. Santiago Arturo Merino Benitez (SCL) is just 8.4 mi from the center of the city. Arturo Merino Benitez is the only Santiago airport and it handles 2 inbound flights from London Heathrow per day. 7 airlines have flights to Santiago Arturo Merino Benitez from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Santiago?

    Departing from London Heathrow Airport to Santiago will take you 19h 55m. The distance from London Heathrow Airport to Santiago is about 7236 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Santiago round-trip?

    According to our current data, Avianca (£455), Air Canada (£649), and Air France (£739) offers the cheapest pricing from London Heathrow Airport to Santiago. Avianca is currently priced 52% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London Heathrow Airport to Santiago one-way?

    The cheapet airlines for a one-way flight from London Heathrow Airport to Santiago are LATAM Airlines (£396), United Airlines (£424), and Avianca (£454).

  • What are the most reliable airlines from London Heathrow Airport to Santiago?

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Santiago consider choosing Finnair (86%), Iberia (86%) or British Airways (86%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London Heathrow Airport to Santiago?

    The cheapest flight price from London Heathrow Airport to Santiago is £742. On average you can expect to pay £1,717. The most popular route, (London Heathrow - Santiago Arturo Merino Benitez), can usually be booked for £711.

  • Can I find deals for flights from Heathrow to Santiago that include hotel bookings?

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

  • How can I find direct flights from Heathrow to Santiago?

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

  • Can I find deals for business class flights from Heathrow to Santiago?

    Yes. Cheapflights offers flight deals from Heathrow to Santiago 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 Santiago?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Santiago (average of £586). Flying from London Heathrow Airport to Santiago in July is currently the most expensive (average of £842). 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

Travelling to a place near Santiago?

Book flights to Santiago if you plan to visit one of these locations
Viña del Mar

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Top 7 airlines flying from Heathrow to Santiago

Discover the top 7 airlines that operate flights from Heathrow to Santiago. 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 18 February 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£455Average£844FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air CanadaCheapest£649Average£760FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£739Average£873FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£767Average£1,067FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LATAM AirlinesCheapest£779Average£967FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
British AirwaysCheapest£794Average£1,053FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£815Average£1,076FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Santiago?

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

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 Heathrow to Santiago.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Santiago flexibly with Cheapflights today.

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