£362 Find Cheap Flights from London Heathrow Airport to South America – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to South America departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Heathrow to South America

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sao Paulo
Sao Paulo1 stop£782
Rio de Janeiro
Rio de Janeiro1 stop£773
Lima
Lima1 stop£745
Buenos Aires
Buenos Aires1 stop£872
Bogotá
Bogotá1 stop£770
Santiago
Santiago2 stops£827
Quito
Quito1 stop£780
Medellín
Medellín2 stops£694
Cali
Cali1 stop£872
Cartagena
Cartagena1 stop£620
Cusco
Cusco3 stops£742
Salvador
Salvador2 stops£857
Pereira
Pereira2 stops£703
Goiânia
Goiânia1 stop£976
Georgetown
Georgetown1 stop£626
Montevideo
Montevideo2 stops£808
Florianopolis
Florianopolis2 stops£781
Recife
Recife1 stop£752
Sao Paulo
Sao Paulo1 stop£782
Rio de Janeiro
Rio de Janeiro1 stop£773
Lima
Lima1 stop£745
Buenos Aires
Buenos Aires1 stop£872
Bogotá
Bogotá1 stop£770
Santiago
Santiago2 stops£827
Quito
Quito1 stop£780
Medellín
Medellín2 stops£694
Cali
Cali1 stop£872
Cartagena
Cartagena1 stop£620
Cusco
Cusco3 stops£742
Salvador
Salvador2 stops£857
Pereira
Pereira2 stops£703
Goiânia
Goiânia1 stop£976
Georgetown
Georgetown1 stop£626
Montevideo
Montevideo2 stops£808
Florianopolis
Florianopolis2 stops£781
Recife
Recife1 stop£752

Book Cheap Heathrow to South America Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to South America that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to South America

Wed, 2 Sep - Tue, 29 Sep
Avianca Logo
22:05 - 00:50
LHR
-
LIM
32h 45m
1 stop
Avianca Logo
07:30 - 15:35
LIM
-
LHR
26h 05m
1 stop
£745Avianca
Sun, 15 Nov - Mon, 30 Nov
Iberia Logo
06:05 - 20:25
LHR
-
LIM
19h 20m
1 stop
Iberia Logo
11:40 - 10:35
LIM
-
LHR
17h 55m
1 stop
£747Iberia
Thu, 3 Sep - Thu, 10 Sep
TAP AIR PORTUGAL Logo
18:45 - 05:20
LHR
-
GIG
14h 35m
1 stop
TAP AIR PORTUGAL Logo
02:15 - 22:05
GIG
-
LHR
15h 50m
1 stop
£773TAP AIR PORTUGAL
Wed, 28 Oct - Tue, 1 Dec
Lufthansa Logo
18:30 - 06:10
LHR
-
GIG
14h 40m
1 stop
Lufthansa Logo
15:40 - 08:45
GIG
-
LHR
14h 05m
1 stop
£775Lufthansa
Mon, 26 Oct - Sat, 7 Nov
Lufthansa Logo
18:30 - 06:10
LHR
-
GIG
14h 40m
1 stop
Lufthansa Logo
15:40 - 09:45
GIG
-
LHR
15h 05m
1 stop
£778Lufthansa
Sat, 7 Nov - Sun, 22 Nov
British Airways Logo
22:00 - 06:50
LHR
-
GIG
11h 50mdirect
British Airways Logo
20:30 - 16:35
GIG
-
LHR
17h 05m
1 stop
£779British Airways
Sat, 31 Oct - Mon, 23 Nov
British Airways Logo
22:00 - 06:50
LHR
-
GIG
11h 50mdirect
British Airways Logo
20:30 - 14:20
GIG
-
LHR
14h 50m
1 stop
£780British Airways
Fri, 21 Aug - Wed, 9 Dec
LATAM Airlines Logo
21:20 - 04:45
LHR
-
GRU
11h 25mdirect
LATAM Airlines Logo
18:25 - 12:45
GRU
-
LHR
15h 20m
1 stop
£784LATAM Airlines
Fri, 11 Sep - Mon, 28 Sep
LATAM Airlines Logo
21:20 - 04:45
LHR
-
GRU
11h 25mdirect
LATAM Airlines Logo
23:50 - 15:05
GRU
-
LHR
11h 15mdirect
£785LATAM Airlines
Fri, 6 Nov - Thu, 26 Nov
TAP AIR PORTUGAL Logo
06:00 - 09:20
LHR
-
AEP
30h 20m
2 stops
TAP AIR PORTUGAL Logo
11:50 - 18:55
AEP
-
LHR
28h 05m
2 stops
£885TAP AIR PORTUGAL
Booking Insights

KAYAK's insights & trends for Heathrow to South America flights

Get data-powered insights and trends into flights from Heathrow to South America to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to South America flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to South America from London Heathrow Airport found in the last 72 hours was to Bogotá, at £584 return. The most popular route is from London Heathrow Airport (LHR) to Sao Paulo Guarulhos Intl Airport (GRU), and the cheapest round-trip airline ticket found on this route in the last 5 days was £801.

What is the cheapest time of day to fly to South America?

The average price for all round-trip flights from London Heathrow Airport to South America depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to South America is generally at night, when retur flights cost £1,025 on average. The most expensive time of day to fly to South America is generally at night, which is peak travel time and where the average cost of a ticket is £1,025.

Can I save money by flying with a stopover from London Heathrow Airport to South America?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £944, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to South America?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to South America, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to South America is March, when tickets cost £816 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £1,237 and £1,160 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to South America?

The average price of all round-trip flights from London Heathrow Airport to South America clicked on KAYAK for each day over the last 12 months.

When flying from London Heathrow Airport to South America, you should consider leaving on a Thursday and avoid Saturdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

How far in advance should I book a flight from London Heathrow Airport to South America?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to South America, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Heathrow Airport to South America, you should book around 2 weeks before departure, which saves you about 20% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to South America

Low seasonJune
Cheapest flight£362
Most popular time to fly (29% more expensive on average)
Flight from London Heathrow Airport to Santiago

FAQs - booking South America flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to South America?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to South America.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to South America?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to South America is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to South America?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to South America with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to South America?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to South America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Heathrow to South America

 
Need help choosing which airline to fly with from Heathrow to South America? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Virgin AtlanticOverall score based on 690 reviews
8.1Crew
7.5Entertainment
6.9Food
7.7Boarding
7.3Comfort
Airline reviews

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

10.0 ExcellentLye Sim, Jun 2026
LHR - JFK
Read more Virgin Atlantic reviews

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

My seat 3G did not go down fully and the buttons were not working properly

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

Nothing I like, I missed this connection b/c of an earlier flight delay. I had to stay one more night and I paid out my own pocket. LATAM failed to send me to a safe and decent hotel.

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

Just to drop my already labeled bag it took 50 minutes inline. Completely disappointed with Latam operation at GRU

My entertainment did not work. I was very tired from the botched connection, and the poor sleep

Staff encountered friendly and helpful. Flight delayed 1 hour due to mechanical issue, but made it through Atlanta immkgration and security in plenty of time,

Only complaint is that the entertainment system wasn’t working on our seats and some others.

It was a short flight, sits uncomfortable No food was provided. Staff was lovely and kind .

For bus boarding, group 1 should have been sent on a separate bus ahead of the general boarding. It would have been nice.

They offered food. The crew passed by again offering water. I enjoyed the two seating section. I think is very comfortable instead of the three seat way, unless you seat in the middle; which it's not bad, but I wouldn't prefer. All and all, I think the lay out of the seating rows are better than other airlines so far( I haven't tried many anyways). The lay out makes the getting in and out to use the restroom less uncomfortable and cramped. First time flying with Latam. I will fly with them again

Terrible They charged me 157$ for excess baggage even though my bags were within the normally accepted limits Flight was late. Service was poor. The snacks were really bad

Bad boarding, threat to force bag check mid journey, lines, late, buses, more waiting awful end to end.

Terrible! I had to cancel our flights due to my wife Carmen requiring an unexpected second cancer surgery. I first contacted orbitz about obtaining a credit due to medical interruption and orbitz directed me to TAP. I contacted TAP and the representative directed me back to orbitz and refused to even explain what TAP’s medical interruption policy was or how it worked—I wanted that information for a second call to orbitz. Terrible service at a particularly difficult time.

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

Boarding went fast. Lisbon's gates are too small for the flights they serve.

The staff were great - very friendly and chatty. I checked in online at 9.30am, when check in had opened at 1.30am, and choices were already very limited, so act fast.

Awful experience all around, misleading booking led to disgraceful baggage charge at gate. Tiny uncomfortable seats with little drinks served in small paper cups filled halfway. Difficult to use bathrooms the whole flight and now on the way back we’re stuck in Lisbon a day later because of a diversion on our connecting flight, I will never fly this airline again.

I suspect that there was an item pilfered from my bag at the TAP automated check-in counter on March 26th at Heathrow Airport around 11:30am. I think that the employee assisting me with my bags took something out of it when I was not paying attention because today, March 27th there is a notebook missing. Please check the camera to see if indeed this occurred. My description: Male, African Decent, 5'8, 180lbs medium build, wearing trousers and a jacket. Employee description: Female, Indian Decent (guessing) 5'7, slight build. Flight 1359, London to Lisbon.

We liked the crew. They were competent, professional and friendly. The only big negative was our departure was delayed several times and the airport staff did not communicate what the problems were and what we should expect.

Very happy with the airline. No issues or complaints! Will definitely use TAP Air Portugal again,

Food is horrible. Flight was good and the staff were mostly men.

Delayed suitcase - terrible service to get my suitcase next day, I was informed it would arrive today in the afternoon (Jun/28). Now, I was informed I may or may not receive it until 3 am (Jun/29).

Seats were comfortable, but boarding was the worst I've ever seen. Way too much walking to get onboard as we had to go up & down steps several & then bus took us halfway around the airport for boarding & had to board outside after a very long bus rood.

I will never want to book with these people. They are arrogant and rude. Food was really really bad, crew was even worst

The plane was so old, it needs to be retired! The windows were rattling we paid for premier economy and there was no footrest. Video console was so old, barely had any games for kids. Video console is very slow to react. The gaming console was broken. The foldable food table was sticky and the air hostess had a rough time opening it and closing it for us!!

Generally very good. I think their service is better than some other big names I used to travel with. Their food variety is second to none - and you can place order beforehand. Their seating design is a bit awkward for service, I'd say. Flight attendants must be tall enough - long legs and arms - to reach the window seat passenger while crossing over the isle passenger. Also appreciated the variety on entertainment.

Could have used more leg room for “business class” which is basically coach with a middle seat blocked. Crew was friendly, attentive. Zero entertainment.

Generally okay. Disappointing compared to some of their competitors. My seat hadn’t been cleaned properly which was upsetting

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

Not good, tried to purchase a first class upgrade and they couldn’t get it done. Was super uncomfortable the whole time.

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

$120 for a carry on bag !!!!!! Insane. Back-breaking seats. Do not recline. Food service is a disgrace. They give only water and a salty snack. Everything else has a price.

The fees for baggage were outrageous. $130 for carry on and $150 for check in for an international flight. The seats did not recline. We were not even offered water. Had we known all of this, we would not have booked Avianca at all.

No water for a 5 hour flight entertainment not working seats with little room for knees when person in front of me reclined kept bumping my knees.

Seat space was terrible no food on a six hour flight

Avianca flights to Galapagos and back and well organized and on time.

I flew with my service dog unfortunately they didn’t allow it to flight on the canine, but ok, the only problem was that when I arrived to Quito it took 1 hour to deliver my dog, they were supposed to deliver it the moment we get off the airplane.

Terrible Business cabin from GRU to BOG. I also flew from BOG to CUN on Premium seat, another disappointment. Not even water is offered for free! Avianca should be ashamed about this poor service.

Everything you need to know for your flight to South America

Information on your arrival and departure airports