Cheap flights from London Heathrow Airport to Santiago from £300

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SCL
23 May — 30 May1
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 June, booked 72 days in advance, depart on a Friday 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 23 April 2026.

Tue 15/909:55
LHR
-
SCL
1 stop27h 30m
Iberia
Wed 30/911:20
SCL
-
LHR
1 stop17h 50m
Iberia
Deal found 22/4£762
Sat 7/1120:50
LHR
-
SCL
1 stop40h 20m
Iberia
Sat 14/1111:55
SCL
-
LHR
1 stop18h 15m
Iberia
Deal found 20/4£764
Sat 7/1120:50
LHR
-
SCL
1 stop40h 20m
Iberia
Thu 12/1111:55
SCL
-
LHR
1 stop18h 15m
Iberia
Deal found 20/4£769
Mon 14/909:55
LHR
-
SCL
1 stop27h 40m
Iberia
Wed 30/911:20
SCL
-
LHR
1 stop17h 50m
Iberia
Deal found 22/4£775
Mon 18/519:50
LHR
-
SCL
2 stops29h 45m
Multiple Airlines
Tue 9/620:30
SCL
-
LHR
1 stop37h 35m
Multiple Airlines
Deal found 19/4£778
Mon 9/1115:00
LHR
-
SCL
1 stop23h 15m
Air Canada
Tue 24/1120:55
SCL
-
LHR
1 stop35h 25m
Air Canada
Deal found 19/4£779
Sun 8/1109:55
LHR
-
SCL
1 stop27h 15m
Iberia
Thu 12/1111:55
SCL
-
LHR
1 stop18h 15m
Iberia
Deal found 20/4£779
Thu 19/1122:30
LHR
-
SCL
1 stop25h 45m
Multiple Airlines
Mon 30/1116:25
SCL
-
LHR
1 stop18h 40m
Multiple Airlines
Deal found 18/4£781
Thu 11/619:45
LHR
-
SCL
2 stops32h 35m
Multiple Airlines
Tue 16/605:00
SCL
-
LHR
2 stops32h 55m
Multiple Airlines
Deal found 18/4£784
Wed 10/618:45
LHR
-
SCL
1 stop17h 40m
Iberia
Tue 16/622:20
SCL
-
LHR
1 stop16h 25m
Iberia
Deal found 23/4£787
Fri 13/1118:00
LHR
-
SCL
1 stop20h 15m
Air Canada
Fri 27/1108:25
SCL
-
LHR
1 stop19h 45m
Air Canada
Deal found 20/4£788

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 23 April 2026.

Round-trip from

£762

One-way from

£300

Popular in

December

Cheapest in

September

Average price

£910

Good round-trip deal

£820 or less

Good one-way deal

£646 or less
Iberia
  • Iberia
  • 15/9-30/9
  • 2 total stops
  • 45h 20m total
  • London to Santiago
LEVEL
  • LEVEL
  • 6/5
  • 1 total stop
  • 27h 50m total
  • London to Santiago
Highest demand for flights based on searches. 2% potential increase in price (£21 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in April 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 23 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Santiago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Mon 14/9

21:55-08:30

Nonstop14h 35m

Santiago Arturo Merino Benitez

Tue 29/9

11:40-09:30

1 stop17h 50m

£881

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Thu 11/6

18:00-05:03

3 stops40h 03m

Santiago Arturo Merino Benitez

Sun 21/6

10:15-09:50

2 stops42h 35m

£888

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Wed 10/6

06:30-23:26

2 stops45h 56m

Santiago Arturo Merino Benitez

Fri 19/6

11:17-22:25

2 stops30h 08m

£890

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Tue 5/5

22:40-19:23

2 stops49h 43m

Santiago Arturo Merino Benitez

Thu 14/5

09:15-09:50

3 stops43h 35m

£896

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Tue 12/5

11:15-07:15

1 stop25h 00m

Santiago Arturo Merino Benitez

Mon 18/5

20:40-06:25

1 stop28h 45m

£898

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sat 5/9

11:45-07:15

2 stops24h 30m

Santiago Arturo Merino Benitez

Wed 16/9

20:40-06:20

2 stops29h 40m

£898

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Wed 13/5

09:40-07:15

2 stops26h 35m

Santiago Arturo Merino Benitez

Sun 24/5

20:40-10:20

2 stops32h 40m

£898

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sun 10/5

11:45-07:15

2 stops24h 30m

Santiago Arturo Merino Benitez

Mon 18/5

20:40-06:45

2 stops29h 05m

£900

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sat 9/5

11:15-07:15

1 stop25h 00m

Santiago Arturo Merino Benitez

Mon 18/5

20:40-13:15

1 stop35h 35m

£900

LondonSantiago

LHR - SCL

LHRSCL

London Heathrow

Sun 10/5

15:15-07:15

1 stop21h 00m

Santiago Arturo Merino Benitez

Sun 17/5

20:40-11:20

1 stop33h 40m

£900

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 22 resultsSorted by cheapest first
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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 17 April 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 72 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Santiago (average of £859). Flying from London Heathrow Airport to Santiago in December is currently the most expensive (average of £1,238). 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 23 April 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 23 April 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.

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Food

6.7

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Food

6.7

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Food

6.7

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Food

6.7

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Food

6.7

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Food

6.7

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

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 0 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 14h 35m. 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 (£458), Air Canada (£666), and Air France (£742) offers the cheapest pricing from London Heathrow Airport to Santiago. Avianca is currently priced 53% 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 United Airlines (£446), Avianca (£453), and Iberia (£465).

  • 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 (75%), Iberia (75%) or British Airways (75%) 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 £639. On average you can expect to pay £1,674. The most popular route, (London Heathrow - Santiago Arturo Merino Benitez), can usually be booked for £750.

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Santiago (average of £859). Flying from London Heathrow Airport to Santiago in December is currently the most expensive (average of £1,238). 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 23 April 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£458Average£836FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air CanadaCheapest£666Average£784FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£742Average£938FlexibilityNo cancel feeOn-time77%
Search Air France flights
LATAM AirlinesCheapest£788Average£986FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
British AirwaysCheapest£812Average£1,020FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£837Average£1,082FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£844Average£1,080FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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

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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.

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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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