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Cheap flights from London Heathrow Airport to Santiago from £363

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SCL
10 Mar — 17 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 Monday or Wednesday 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 8 February 2026.

Mon 16/319:40
LHR
-
SCL
1 stop16h 40m
Iberia
Mon 23/323:55
SCL
-
LHR
1 stop15h 55m
Iberia
Deal found 6/2£783
Thu 7/522:05
LHR
-
SCL
1 stop35h 40m
Avianca
Thu 28/506:40
SCL
-
LHR
1 stop27h 55m
Avianca
Deal found 4/2£784
Wed 25/1106:00
LHR
-
SCL
2 stops33h 15m
Air Canada
Fri 11/1208:25
SCL
-
LHR
2 stops43h 05m
Air Canada
Deal found 7/2£784
Sun 22/317:35
LHR
-
SCL
1 stop19h 05m
Air France
Tue 26/510:10
SCL
-
LHR
1 stop16h 45m
Air France
Deal found 6/2£785
Sat 14/319:05
LHR
-
SCL
1 stop17h 15m
Iberia
Mon 23/323:55
SCL
-
LHR
1 stop15h 55m
Iberia
Deal found 5/2£789
Tue 24/1107:30
LHR
-
SCL
1 stop18h 10m
British Airways
Thu 10/1212:30
SCL
-
LHR
Nonstop14h 20m
British Airways
Deal found 7/2£789
Wed 6/522:05
LHR
-
SCL
1 stop21h 10m
Avianca
Wed 27/506:40
SCL
-
LHR
1 stop27h 55m
Avianca
Deal found 7/2£790
Tue 12/522:05
LHR
-
SCL
1 stop21h 10m
Avianca
Wed 27/506:40
SCL
-
LHR
1 stop27h 55m
Avianca
Deal found 7/2£792
Wed 4/320:15
LHR
-
SCL
1 stop18h 20m
LATAM Airlines
Wed 11/317:10
SCL
-
LHR
1 stop17h 55m
LATAM Airlines
Deal found 5/2£792
Wed 4/311:10
LHR
-
SCL
2 stops48h 40m
United Airlines
Wed 11/321:45
SCL
-
LHR
1 stop30h 45m
United Airlines
Deal found 5/2£794

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 8 February 2026.

Round-trip from

£783

One-way from

£363

Popular in

December

Cheapest in

September

Average price

£967

Good round-trip deal

£821 or less
Iberia
  • Iberia
  • 16/3-23/3
  • 2 total stops
  • 32h 35m total
  • London to Santiago
Search Deals
Avianca
  • Avianca
  • 15/3
  • 1 total stop
  • 20h 40m total
  • London to Santiago
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£23 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Santiago Arturo Merino Benitez.
Search Deals

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 8 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

Mon 2/3

16:20-08:50

2 stops43h 30m

Santiago Arturo Merino Benitez

Wed 11/3

21:45-06:20

2 stops29h 35m

£796

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sat 28/2

16:20-08:50

2 stops67h 30m

Santiago Arturo Merino Benitez

Tue 10/3

21:45-07:30

1 stop30h 45m

£798

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Wed 8/4

09:55-08:45

1 stop27h 50m

Santiago Arturo Merino Benitez

Sat 9/5

10:30-09:10

1 stop17h 40m

£802

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Wed 25/2

12:00-08:50

2 stops47h 50m

Santiago Arturo Merino Benitez

Thu 5/3

22:45-07:55

2 stops54h 10m

£802

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sat 9/5

14:40-20:20

1 stop34h 40m

Santiago Arturo Merino Benitez

Tue 26/5

10:40-09:30

1 stop17h 50m

£820

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Fri 17/4

11:45-08:45

2 stops26h 00m

Santiago Arturo Merino Benitez

Wed 6/5

10:10-13:45

1 stop22h 35m

£835

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sun 22/2

15:10-08:50

2 stops44h 40m

Santiago Arturo Merino Benitez

Sun 1/3

22:45-10:15

1 stop32h 30m

£846

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Mon 9/3

16:20-07:50

2 stops42h 30m

Santiago Arturo Merino Benitez

Sun 22/3

21:45-07:30

1 stop30h 45m

£853

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sat 21/3

18:45-22:15

1 stop30h 30m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-08:25

1 stop16h 45m

£857

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Thu 21/5

21:55-07:30

Nonstop14h 35m

Santiago Arturo Merino Benitez

Mon 25/5

10:40-18:15

1 stop26h 35m

£874

Flights are sorted by cheapest return flights first.

Deals found on 7/2

Showing 1-10 of 21 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 6 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 £584). Flying from London Heathrow Airport to Santiago in July is currently the most expensive (average of £838). 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 8 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.

How much does it cost for a return flight from London Heathrow Airport to Santiago?

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 8 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.
LATAM Airlines
7.5
Good
1,917 reviews
Check prices

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Food

6.7

Overall

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
LATAM Airlines
7.5
Good
1,917 reviews
LATAM Airlines
7.5
Good
1,917 reviews
Check prices

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Food

6.7

Overall

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
Air France
7.4
Good
1,531 reviews
LATAM Airlines
7.5
Good
1,917 reviews
Check prices

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Food

6.7

Overall

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
Air Canada
7.1
Good
10,698 reviews
LATAM Airlines
7.5
Good
1,917 reviews
Check prices

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Food

6.7

Overall

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
Iberia
7.0
Good
3,109 reviews
LATAM Airlines
7.5
Good
1,917 reviews
Check prices

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Food

6.7

Overall

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
British Airways
6.7
Okay
7,721 reviews
LATAM Airlines
7.5
Good
1,917 reviews
Check prices

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Food

6.7

Overall

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 1 inbound flight 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 27h 50m. 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 (£454), Air Canada (£647), and Air France (£736) 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 (£395), United Airlines (£423), and Avianca (£453).

  • 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 (89%), Iberia (89%) or British Airways (89%) 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 £719. On average you can expect to pay £1,749. The most popular route, (London Heathrow - Santiago Arturo Merino Benitez), can usually be booked for £669.

  • 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 £584). Flying from London Heathrow Airport to Santiago in July is currently the most expensive (average of £838). 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 8 February 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£454Average£841FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air CanadaCheapest£647Average£758FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£736Average£875FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£764Average£1,006FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£769Average£1,050FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LATAM AirlinesCheapest£776Average£964FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
IberiaCheapest£807Average£1,064FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Heathrow to Santiago 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 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.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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