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Fly from
Fly to
Route
Depart
Return
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Mon 11/23
7:30 pm-11:50 am
3 stops43h 20m
Buenos Aires Ministro Pistarini
Mon 12/7
2:05 am-1:00 pm
2 stops31h 55m
LondonBuenos Aires
LHR London Heathrow - AEP Buenos Aires Jorge Newbery
LHRAEP
London Heathrow
Mon 11/23
6:30 pm-8:00 pm
2 stops28h 30m
Buenos Aires Jorge Newbery
Mon 11/30
9:25 am-5:15 pm
2 stops28h 50m
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Wed 2/17
7:40 pm-6:35 pm
2 stops25h 55m
Buenos Aires Ministro Pistarini
Thu 3/11
2:05 am-2:05 pm
1 stop33h 00m
LondonBuenos Aires
LHR London Heathrow - AEP Buenos Aires Jorge Newbery
LHRAEP
London Heathrow
Mon 11/23
8:15 pm-10:30 am
1 stop17h 15m
Buenos Aires Jorge Newbery
Mon 11/30
3:50 pm-5:15 pm
2 stops22h 25m
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Fri 11/13
7:40 am-9:20 am
2 stops28h 40m
Buenos Aires Ministro Pistarini
Thu 11/26
11:55 pm-5:55 am
2 stops27h 00m
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Sat 11/14
12:05 pm-7:20 am
1 stop22h 15m
Buenos Aires Ministro Pistarini
Mon 11/30
11:55 pm-7:40 am
1 stop28h 45m
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Mon 1/25
12:05 pm-7:20 am
1 stop22h 15m
Buenos Aires Ministro Pistarini
Tue 2/9
11:55 pm-9:10 am
2 stops30h 15m
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Wed 11/11
8:15 pm-4:00 pm
1 stop22h 45m
Buenos Aires Ministro Pistarini
Wed 11/25
5:00 pm-2:05 pm
1 stop18h 05m
LondonBuenos Aires
LHR London Heathrow - AEP Buenos Aires Jorge Newbery
LHRAEP
London Heathrow
Fri 11/13
8:15 pm-8:00 pm
1 stop26h 45m
Buenos Aires Jorge Newbery
Thu 11/26
6:20 pm-2:05 pm
1 stop16h 45m
LondonBuenos Aires
LHR London Heathrow - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Sun 11/22
10:30 am-8:50 am
1 stop25h 20m
Buenos Aires Ministro Pistarini
Sun 11/29
10:20 pm-9:40 am
1 stop32h 20m
See travel insights to Buenos Aires from
How to get the cheapest flight ticket from London to Buenos Aires
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 London and Buenos Aires?
Prices are currently typical for flights on this route.
Typical prices usually range from $1,216 to $1,598.The lowest price recently found on this route was $1,278.
What is the cheapest month to fly to Buenos Aires?
The cheapest month to fly to Buenos Aires from London is in May. Flight prices, which tend to average around $1,162, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from London during April instead. Flights to Buenos Aires in April, while not as cheap as those in May, still average around $1,234.
How far in advance should I book a flight from London to Buenos Aires?
You are more likely to see cheaper flights to Buenos Aires from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London for as low as $1,138 on momondo.
Can stopping save me money on London to Buenos Aires flights?
You could potentially save up to 18% on your flight if you consider stops on a London to Buenos Aires flight.
How have London to Buenos Aires flight prices changed over time?
As of October 2026, prices for London to Buenos Aires flights are approximately 16% cheaper when compared to flights at the same time last year.
Which airport is the most popular layover for flights between London and Buenos Aires?
Madrid (MAD) was the most common stop: 29% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from London to Buenos Aires?
Flights via Bogotá (BOG) offer the lowest average round-trip price of $1,099.
Which layover airport has the shortest travel time from London to Buenos Aires?
Flights connecting via Paris (CDG) have the shortest average one-way travel time: 16h 05m.
Which layover airport has the shortest connection time from London to Buenos Aires?
Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 05m.
How many flights depart from London to Buenos Aires on average per day?
As of October 2026, there are 3 flights per day flying from London to Buenos Aires. The most common time of day flights depart is 9:00PM, with 100% of flights taking off in the evening.
How many flights depart from London to Buenos Aires on average per week?
21 flights are operational weekly from London to Buenos Aires as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
When to book flights from London to Buenos Aires
Cheap London to Buenos Aires (LON to BUE) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Buenos Aires
Frequently asked questions about flying from London to Buenos Aires
How far is London to Buenos Aires by plane?
Buenos Aires is 6909.8 mi away from London. A reasonable flight in good conditions will take 16h 00m.
When did momondo last update prices for flights from London to Buenos Aires?
Prices for flights from London to Buenos Aires refresh daily.
How old do you have to be to fly from London to Buenos Aires?
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 London to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Buenos Aires?
Based on momondo bookings for flights between London and Buenos Aires, the leading plane model is Boeing 777, making up 100.00% of the total bookings.
What is the most popular airline from London to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London to Buenos Aires is British Airways (53% of total bookings). The next most popular airlines are Avianca (26%) and LATAM Airlines (21%).
Why use momondo?
Why should I use momondo to find a flight deal from London to Buenos Aires?
Finding the right flight to Buenos Aires from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.
Can I find flights from London to Buenos Aires with flexible booking policies on momondo?
All flight searches from London to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to Buenos Aires?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Buenos Aires.
I’m not ready to book a flight from London to Buenos Aires right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from London and alert you when they change.