$466 Cheap Flights from Santiago (SCL) to London (LHR)

Popular airlines from Santiago Intl. Airport (SCL) to Heathrow Airport (LHR)

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Cheap Flights from Santiago to London (SCL-LHR)

Prices were available within the past 7 days and start at $466 for one-way flights and $858 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
LATAM Airlines Group
LATAM Airlines Group
LATAM Airlines Group
LATAM Airlines Group
Air Canada
LATAM Airlines Group
Aeromexico
Air France
avianca

Find the cheapest month to fly from Santiago (SCL) to London (LHR)

March is typically the cheapest month to fly

From $788 - $1,271 per traveler.

Graph displaying average flight prices per month

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Flights from Santiago (SCL) to London (LHR)
Origin airport
Arturo Merino Benitez
Destination airport
Heathrow
Airlines serving
Aeromexico, Air Canada, Air France, American Airlines, British Airways, Delta, Iberia, KLM, LATAM Airlines Group, Turkish Airlines, United, avianca
Roundtrip price
$858
Distance
7241 mi
Average flight time
16 hours 10 mins

Santiago to London Flights

The cheapest times to fly from Santiago to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Santiago to London are during the month of January. You can find some of the cheapest flights from Santiago to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Santiago to London

Sunday is one of the best days to book for cheap flights from Santiago to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Santiago to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Santiago to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $466 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Santiago to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Santiago to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR) cost?
Discover the latest flight deals from SCL to LHR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SCL to LHR?
The cheapest flights from SCL to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
When departing from Arturo Merino Benitez Airport (SCL), you can board a direct flight to Heathrow Airport (LHR) with British Airways.
What is the cheapest airline that flies from SCL to LHR?
Book a flight from SCL to LHR with British Airways. This carrier currently has the lowest one-way fare on this route, starting at $746. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SCL on August 12 2025. Prices were last updated on June 22 2025 and have not changed since.
How many flights per day from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
On average, you can choose from 4 direct flights per week from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR). To expand your choices, consider flights with layovers. Enter your dates on Expedia and then filter your search to include one or two stops.
What are the most popular departure times for flights from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
More passengers fly between SCL and LHR at 1 PM than at any other time of day. Prefer a quieter experience? Travel outside of rush hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from SCL to LHR?
Friday offers the most flights from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR). Consider taking off on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
Take the earliest flight at around 12:40PM UTC-3, heading out of Arturo Merino Benitez Airport (SCL). You'll be in the air for roughly 14h 10m, reaching Heathrow Airport (LHR) at approximately 5:50AM UTC+0.
How long does it take to fly from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
The average flight time from SCL to LHR is 14 hours and 10 minutes, covering a total distance of 7,300 mi.
What is the best time to fly from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
To avoid potential delays on the Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR) route, fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for London from Arturo Merino Benitez Airport (SCL)?
Browse your flight options from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR). This is the only airport in London you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR) last-minute?
Last-minute fares from SCL to LHR are generally more expensive. To secure the cheapest rates, start looking for flights as early as possible. That said, if your travel plans are flexible, you may find a cheap ticket right before your journey.
Is it cheaper to book a SCL to LHR flight and hotel package?
You'll typically save money by booking a SCL to LHR flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Arturo Merino Benitez Airport (SCL) to Heathrow Airport (LHR)?
If you reserved your SCL to LHR flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.