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Cheap flights from Buenos Aires to London from $503

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to London departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buenos Aires to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:20 am - 5:30 pm
AEP
-
LHR
28h 10m
2 stops
Multiple Airlines Logo
6:00 am - 11:30 am
LHR
-
AEP
32h 30m
2 stops
$1,193Multiple Airlines
Tue, Nov 24 - Wed, Dec 9
Multiple Airlines Logo
2:25 pm - 5:15 pm
EZE
-
LHR
23h 50m
1 stop
Multiple Airlines Logo
10:45 am - 7:45 am
LHR
-
EZE
24h 00m
1 stop
$1,197Multiple Airlines
Sun, Nov 22 - Tue, Dec 1
Multiple Airlines Logo
2:25 pm - 4:35 pm
EZE
-
LHR
23h 10m
1 stop
Multiple Airlines Logo
3:45 pm - 7:45 am
LHR
-
EZE
19h 00m
1 stop
$1,201Multiple Airlines
Wed, Nov 25 - Sat, Dec 5
Multiple Airlines Logo
2:25 pm - 4:35 pm
EZE
-
LHR
23h 10m
1 stop
Multiple Airlines Logo
10:45 am - 7:45 am
LHR
-
EZE
24h 00m
1 stop
$1,201Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
5:45 am - 3:35 pm
AEP
-
LHR
29h 50m
2 stops
Multiple Airlines Logo
10:05 pm - 11:54 pm
LHR
-
AEP
29h 49m
3 stops
$1,201Multiple Airlines
Thu, Sep 17 - Sun, Sep 27
Multiple Airlines Logo
2:25 pm - 4:35 pm
EZE
-
LHR
23h 10m
1 stop
Multiple Airlines Logo
10:45 am - 7:45 am
LHR
-
EZE
24h 00m
1 stop
$1,202Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
2:25 pm - 5:15 pm
EZE
-
LHR
23h 50m
1 stop
Multiple Airlines Logo
10:45 am - 7:45 am
LHR
-
EZE
24h 00m
1 stop
$1,204Multiple Airlines
Sun, Nov 22 - Tue, Dec 1
Multiple Airlines Logo
4:55 pm - 7:10 am
EZE
-
LHR
35h 15m
2 stops
Multiple Airlines Logo
6:00 pm - 3:05 pm
LHR
-
EZE
24h 05m
2 stops
$1,207Multiple Airlines
Thu, Nov 5 - Sun, Nov 15
Iberia Logo
7:10 pm - 5:15 pm
EZE
-
LHR
19h 05m
1 stop
Iberia Logo
7:40 pm - 5:25 pm
LHR
-
EZE
24h 45m
1 stop
$1,321Iberia
Mon, Nov 23 - Sat, Dec 5
Iberia Logo
7:10 pm - 5:15 pm
EZE
-
LHR
19h 05m
1 stop
Iberia Logo
7:40 pm - 5:25 pm
LHR
-
EZE
24h 45m
1 stop
$1,324Iberia
Thu, Nov 26 - Sat, Dec 5

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ITA Airways flights from Buenos Aires to London Heathrow Airport

Our best ITA Airways deals on Buenos Aires to London Heathrow Airport flight tickets
ITA Airways
Nov 22
EZE1:50 pmBuenos Aires Ministro Pistarini
16h 50m
1 stop
LHR9:40 amLondon Heathrow
Dec 5
LHR4:30 pmLondon Heathrow
30h 25m
1 stop
EZE7:55 pmBuenos Aires Ministro Pistarini
$1,282
ITA Airways
Nov 24
EZE1:50 pmBuenos Aires Ministro Pistarini
22h 50m
1 stop
LHR3:40 pmLondon Heathrow
Dec 5
LHR4:30 pmLondon Heathrow
30h 25m
1 stop
EZE7:55 pmBuenos Aires Ministro Pistarini
$1,283
ITA Airways
Nov 24
EZE1:50 pmBuenos Aires Ministro Pistarini
22h 50m
1 stop
LHR3:40 pmLondon Heathrow
Dec 5
LHR4:30 pmLondon Heathrow
30h 25m
1 stop
EZE7:55 pmBuenos Aires Ministro Pistarini
$1,284

Air Canada flights from Buenos Aires to London Heathrow Airport

Our best Air Canada deals on Buenos Aires to London Heathrow Airport flight tickets
Air Canada
Nov 8
EZE12:45 pmBuenos Aires Ministro Pistarini
40h 45m
2 stops
LHR8:30 amLondon Heathrow
Nov 28
LHR9:00 amLondon Heathrow
33h 05m
3 stops
EZE3:05 pmBuenos Aires Ministro Pistarini
$1,248
Air Canada
Nov 7
EZE4:15 amBuenos Aires Ministro Pistarini
49h 15m
2 stops
LHR8:30 amLondon Heathrow
Nov 28
LHR1:45 pmLondon Heathrow
52h 20m
3 stops
EZE3:05 pmBuenos Aires Ministro Pistarini
$1,250
Air Canada
Nov 22
EZE4:45 pmBuenos Aires Ministro Pistarini
36h 45m
2 stops
LHR8:30 amLondon Heathrow
Dec 5
LHR1:00 pmLondon Heathrow
29h 05m
2 stops
EZE3:05 pmBuenos Aires Ministro Pistarini
$1,261

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated August 1, 2026.
Use the filters below to find and compare flights from Buenos Aires to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 11/24

10:20 am-5:30 pm

2 stops28h 10m

London Heathrow

Wed 12/9

6:00 am-11:30 am

2 stops32h 30m

$1,193

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 11/22

2:25 pm-5:15 pm

1 stop23h 50m

London Heathrow

Tue 12/1

10:45 am-7:45 am

1 stop24h 00m

$1,197
Quickest round-trip

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 11/25

2:25 pm-4:35 pm

1 stop23h 10m

London Heathrow

Sat 12/5

3:45 pm-7:45 am

1 stop19h 00m

$1,201

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 11/25

2:25 pm-4:35 pm

1 stop23h 10m

London Heathrow

Wed 12/2

10:45 am-7:45 am

1 stop24h 00m

$1,201

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 9/17

5:45 am-3:35 pm

2 stops29h 50m

London Heathrow

Sun 9/27

10:05 pm-11:54 pm

3 stops29h 49m

$1,201

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 11/25

2:25 pm-4:35 pm

1 stop23h 10m

London Heathrow

Wed 12/2

10:45 am-7:45 am

1 stop24h 00m

$1,202

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 11/22

2:25 pm-5:15 pm

1 stop23h 50m

London Heathrow

Tue 12/1

10:45 am-7:45 am

1 stop24h 00m

$1,204

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 11/5

4:55 pm-7:10 am

2 stops35h 15m

London Heathrow

Sun 11/15

6:00 pm-3:05 pm

2 stops24h 05m

$1,207

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 11/23

7:10 pm-5:15 pm

1 stop19h 05m

London Heathrow

Sat 12/5

7:40 pm-5:25 pm

1 stop24h 45m

$1,321

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 11/26

7:10 pm-5:15 pm

1 stop19h 05m

London Heathrow

Sat 12/5

7:40 pm-5:25 pm

1 stop24h 45m

$1,324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Buenos Aires to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Buenos Aires and London Heathrow Airport?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,176 to $1,594.
The lowest price recently found on this route was $1,201.

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Buenos Aires, with most prices found around $1,329. If you’re not able to fly to London Heathrow Airport in February, then March is your next best option. Flight prices from Buenos Aires to London Heathrow Airport during March average around $1,350.

What is the cheapest Buenos Aires to London Heathrow flight route?

Fly from Buenos Aires Ministro Pistarini to London Heathrow for the best Buenos Aires - London Heathrow flight prices

How far in advance should I book a flight from Buenos Aires to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Buenos Aires when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,569 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Buenos Aires for as low as $1,291 on momondo.

What cabin class options are available on Buenos Aires to London Heathrow Airport flights?

There is only 1 cabin class available to choose from on Buenos Aires to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Buenos Aires to London Heathrow Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a Buenos Aires to London Heathrow Airport flight.

How have Buenos Aires to London Heathrow Airport flight prices changed over time?

When to book flights from Buenos Aires to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Buenos Aires to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buenos Aires to London Heathrow Airport (BUE to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buenos Aires to London Heathrow Airport

Fastest flight time

15h 45m

Direct flights

Thu and Fri
The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 45m
Direct flights go from Buenos Aires to London Heathrow Airport on Thursday and Friday. There are no airlines offering direct flights.
Search flight deals

Frequently asked questions about flying from Buenos Aires to London Heathrow Airport

  • How far is Buenos Aires to London Heathrow by plane?

    A flight from Buenos Aires to London Heathrow will travel around 6898.3 mi. Typically, this will take 15h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Buenos Aires to London Heathrow Airport?

    Prices for flights from Buenos Aires to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Buenos Aires to London Heathrow Airport?

  • How old do you have to be to fly from Buenos Aires to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buenos Aires to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Buenos Aires to London Heathrow Airport?

  • What is the most popular airline from Buenos Aires to London Heathrow Airport?

Best airlines flying from Buenos Aires to London Heathrow Airport

Compare and see reviews for airlines that fly from Buenos Aires to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $955Free CancellationRating
7.0
3,263 reviews
Search Iberia flights
American AirlinesPriceFrom $1,308Free CancellationRating
7.1
11,850 reviews
Search American Airlines flights

Traveling to a place near London?

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Romford

Why use momondo?

Why should I use momondo to find a flight deal from Buenos Aires to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Buenos Aires.

Can I find flights from Buenos Aires to London with flexible booking policies on momondo?

Flights from Buenos Aires to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Buenos Aires to London?

momondo helps you find the best flight between Buenos Aires and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Buenos Aires to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Buenos Aires and alert you when they change.

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