£309 Find Cheap Flights from South America to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 12/5. 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.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£592
Overall average: £625
TAP AIR PORTUGAL
Tue 17/2Wed 4/3
GIG - LHR • 1 stop
Cheapest direct flights
£623
Typical prices: £625-£805
LATAM Airlines
Wed 18/2Mon 2/3
GRU - LHR • Direct
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Flight Deals

Cheap Flights from South America to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from South America to London 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 South America to London

Tue, 17 Feb - Wed, 4 Mar
TAP AIR PORTUGAL Logo
20:10 - 17:30
GIG
-
LHR
18h 20m1 stop
TAP AIR PORTUGAL Logo
08:15 - 20:05
LHR
-
GIG
14h 50m1 stop
£592TAP AIR PORTUGAL
Tue, 3 Mar - Mon, 16 Mar
TAP AIR PORTUGAL Logo
20:10 - 17:30
GIG
-
LHR
18h 20m1 stop
TAP AIR PORTUGAL Logo
18:30 - 16:20
LHR
-
GIG
24h 50m1 stop
£593TAP AIR PORTUGAL
Thu, 28 May - Wed, 10 Jun
British Airways Logo
19:15 - 17:15
GIG
-
LHR
18h 00m1 stop
British Airways Logo
20:00 - 17:35
LHR
-
GIG
25h 35m1 stop
£594British Airways
Tue, 10 Mar - Sun, 15 Mar
TAP AIR PORTUGAL Logo
20:10 - 22:40
GIG
-
LHR
23h 30m1 stop
TAP AIR PORTUGAL Logo
08:15 - 20:05
LHR
-
GIG
14h 50m1 stop
£597TAP AIR PORTUGAL
Mon, 9 Feb - Tue, 24 Feb
GOL Logo
11:25 - 13:50
GIG
-
LHR
23h 25m2 stops
GOL Logo
06:30 - 22:45
LHR
-
GIG
19h 15m2 stops
£599GOL
Mon, 9 Feb - Tue, 24 Feb
GOL Logo
20:50 - 13:50
GIG
-
LHR
14h 00m1 stop
GOL Logo
17:35 - 18:25
LHR
-
GIG
27h 50m1 stop
£600GOL
Wed, 6 May - Wed, 13 May
Avianca Logo
04:10 - 15:35
GRU
-
LHR
31h 25m1 stop
Avianca Logo
22:05 - 15:20
LHR
-
GRU
21h 15m1 stop
£600Avianca
Wed, 6 May - Mon, 11 May
Avianca Logo
04:10 - 15:35
GRU
-
LHR
31h 25m1 stop
Avianca Logo
22:05 - 05:35
LHR
-
GRU
35h 30m1 stop
£601Avianca
Mon, 16 Feb - Mon, 2 Mar
ITA Airways Logo
15:45 - 10:55
GRU
-
LCY
16h 10m1 stop
ITA Airways Logo
16:45 - 18:40
LCY
-
GRU
28h 55m1 stop
£603ITA Airways
Mon, 16 Feb - Tue, 10 Mar
ITA Airways Logo
15:45 - 10:55
GRU
-
LCY
16h 10m1 stop
ITA Airways Logo
16:45 - 06:25
LCY
-
GRU
16h 40m1 stop
£604ITA Airways
Useful Info

Good to know - Cheap tickets from South America to London

Low seasonJanuary
Cheapest flight£309
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (11% more expensive on average)
Flight from Sao Paulo Guarulhos Airport to London Heathrow Airport

FAQs for booking flights from South America to London

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

    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 South America to London.

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

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

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

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

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

    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 to London from 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 South America to London

 
Need help choosing which airline to fly with from South America to London? 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
LATAM AirlinesOverall score based on 1897 reviews
8.0Crew
6.7Food
7.3Comfort
7.6Boarding
7.0Entertainment
Airline reviews

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

2.0 MediocreAnonymous, Dec 2025
JFK - EZE
Read more LATAM Airlines reviews

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

Wish the seats were a little more comfortable.. it was a 6 hrs nonstop trip. But the crew was courteous and w a smile

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

Poor, the airline was not able to help me move flights.

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.

The way the Pilot made all announcements, specially the way he congratulated the entire crew as the best team ever, making a comment that due to them they were able to shorter the delay to the destination. Amazing flight .

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

Poor handling of carry on luggage. We had a 8 hour stop in Santiago, are over 70 and, in spite of paying full fare they wanted to send carry on to luggage hold. No empathy. We had to show that several group 4/5 passengers were not sending their carry ons before they finally let Is keep them. Very poor .

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

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

I was disappointed of the crew, not friendly and attentive. Delay one way for fuel leakage and the plane is so hot. Not that great all around but I’m glad I experienced it so now know better.

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

Wonderful just hope the had more direct flights to Boston

Plane was delayed, reading the gates on their screens was horrible. They posted it a half an hour before the plane boarded. By the time I got there with my premier boarding they have filled the plane because it was over booked. Gate closed at 12:03 I was there at 11:54 plane took over around 12:20. I was told they would put me on the next flight. I had to go to TAP information desk. They didn’t give me a voucher they just said they would put me on the next flight. At the desk I was told I had to punches a ticket. The woman said buy it online because it’s cheaper. It in fact was not cheaper. But I had gotten out of the long line that formed so I paid 200$ for a new ticket. At a later flight, not the next flight. I had checked my bag and was told it would be on my new flight. I was then bumped to an earlier flight and was told my bag would also be on my flight. After landing in Madrid loosing a day in my hotel i landed without my bag. They didn’t load it on any flight that day. It arrived in madrid the next day. Essentially ruining the first two days of my vacation. I’m now seeking compensation.

There was no warning that they have added passport control after check in, the line was enormous and after 46 mins wait we missed our flight. Were forced to leave the airport and purchase new tickets at full price to board a later flight. TAP were unsympathetic and unhelpful.

Did not enjoy the meal provided. The aircraft was dirty. For instance, the screen seemed to have been cleaned with a dirty rag. Disgusting.

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

The person at the checkin was very helpful. We couldn’t check in through the keyosk, but the agent was very helpful.

Check in was excellent thanks to the team at the check in counter. I was disappointed to see that one has to pay for coffee on the flight. This is the first time I have seen that after 60 years of flying.

This flight was delayed by more than an hour. The seats are uncomfortable ans do not recline properly. I prepurchased a wifi pass, but wifi was not working on this flight at all. The food was bland.

Food situation was bad. Also movie choices when compared to other airlines was terrible. Seats very narrow. My tv didn’t work.

I was not allowed to cancel the flight, customer service is atrocious

Great staff, just very far from the main terminal, had to run to connect my flight. I had 90 minutes to spare. But my flight from Chicago was delayed also.

My luggage is lost and nowhere to be found, no response from airline

Boarding was a shitshow. Had to bus to the gate. No separate bus and boarding process for Business Class.

The plane was very old, no power outlets. We also had to wait a long time to board. They kept moving us to different lines before we actually could step foot on the plane. We ended up being delayed an hour but we were never told or informed for any reason. After the meal I asked for a coffee which the flight attendant forgot and I had to ask again. Overall not the worst but not the best experience.

Need to pay for headsets, water, or any extra except air to breath.

Sitting space was very tight and I am not big or fat (I am 5'10" 178 Lb), so eating was very challenging. The rest was good.

Sitting space was very tight, so eating was difficult. But everything else was good.

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

I don’t think you’ll like the shoulder require people to pay to reserve seats. Also for the people in the bulkhead row the luggage locker nearest to their seats should be vacant. Both sides were filled with crew or airport items.

Experience was bad. In business class, they ran out of food choices. Luggage was delayed by 2 days in both to and fro flights, ground staff was not helpful, took 3 hours to log the complaint for missing luggage.

We got delayed for 3 hours and. Missed the connection. This is the 3rd time this happened with this airline

5 hour flight with no food or on-board entertainment. Flight crew barely made rounds to provide water.

Staff except one has poor attitude. No cabin crew seen for several hours during the flight in business class. It felt like I was traveling in economy Drinks bad in business class Flight was late for no obvious reasen and I missed my flight to Miami I was put in a 3 star hotel in London although I was traveling in business class. Dinner was aweful at the hotel Overall very poor experience

The transit at Heathrow was an absolute and total nightmare. Absolutely gut wrenchingly horrible and scary. Embarrassing that their National air carrier cannot figure a half decent experience for passengers to transit via London. Shameful.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Gate agents were late…flight was late and air attendants unhelpful.

Awful it always is unfortunately is the only way to fly direct to london

Avianca has transitioned from full service legacy airline to "low cost" but has now became a strange hybrid (minimum leg space, started offering business class in domestic flights again, charges passenger for printing boarding pass, etc.). National and international coverage and destinations are really wide but service is not at its best

We found the chairs to be really uncomfortable. It’s also really unacceptable that no form of food or drink is included in a 6+ hour flight

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

Boarding was late due to the company’s that cleaned the aircraft (very poorly done) and the catering company. The entertainment system was not working for this six hour flight, uncomfortable seats in business (barely any cushion or recline). The airline staff is very good but the planes are horrible and not well maintained.

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

The flight attendant smashed her beverage cart into my knee, causing significant amount of pain. The seats were extremely uncomfortable. No food or drink is offered unless you want to pay the ridiculous prices for it. The schedule of flying in the overnight hours is also very uncomfortable.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

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

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

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Everything you need to know for your flight to London

Cabin class types available on flights to South America

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.