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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
Sun 12/6
2:05 am-1:00 pm
2 stops31h 55m
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 - EZE Buenos Aires Ministro Pistarini
LHREZE
London Heathrow
Sat 11/14
6:00 pm-7:20 am
2 stops40h 20m
Buenos Aires Ministro Pistarini
Sun 11/22
11:55 pm-6:20 am
2 stops27h 25m
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
8:00 am-7:20 am
2 stops26h 20m
Buenos Aires Ministro Pistarini
Mon 2/8
11:55 pm-5:55 am
2 stops27h 00m
LondonBuenos Aires
LHR London Heathrow - AEP Buenos Aires Jorge Newbery
LHRAEP
London Heathrow
Tue 11/17
8:15 pm-10:30 am
1 stop17h 15m
Buenos Aires Jorge Newbery
Thu 11/26
6:20 pm-2:05 pm
1 stop16h 45m
See travel insights to Buenos Aires from
How to get the cheapest flight ticket from London Heathrow Airport 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 Heathrow Airport and Buenos Aires?
Prices are currently typical for flights on this route.
Typical prices usually range from $1,269 to $1,502.The lowest price recently found on this route was $1,275.
What is the cheapest month to fly to Buenos Aires?
The cheapest month to fly to Buenos Aires from London Heathrow Airport is in May. Flight prices, which tend to average around $1,143, 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 Heathrow Airport during November instead. Flights to Buenos Aires in November, while not as cheap as those in May, still average around $1,235.
How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?
You are more likely to see cheaper flights to Buenos Aires from London Heathrow Airport 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 Heathrow Airport for as low as $1,138 on momondo.
Can stopping save me money on London Heathrow Airport to Buenos Aires flights?
You could potentially save up to 18% on your flight if you consider stops on a London Heathrow Airport to Buenos Aires flight.
How have London Heathrow Airport to Buenos Aires flight prices changed over time?
As of October 2026, prices for London Heathrow Airport to Buenos Aires flights are approximately 15% more expensive when compared to flights at the same time last year.
How many flights depart from London Heathrow Airport to Buenos Aires on average per day?
3 flights are operational daily from London Heathrow Airport to Buenos Aires as of October 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.
How many flights depart from London Heathrow Airport to Buenos Aires on average per week?
As of October 2026, there are 21 flights per week flying from London Heathrow Airport to Buenos Aires. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
When to book flights from London Heathrow Airport to Buenos Aires
Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Buenos Aires
Frequently asked questions about flying from London Heathrow Airport to Buenos Aires
How far is London Heathrow to Buenos Aires by plane?
The distance between London Heathrow and Buenos Aires is about 6898.3 mi. By plane, this route typically takes 14h 00m.
When did momondo last update prices for flights from London Heathrow Airport to Buenos Aires?
Prices for flights from London Heathrow Airport to Buenos Aires are updated daily.
How old do you have to be to fly from London Heathrow Airport to Buenos Aires?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Buenos Aires is Boeing 777 (100.00% of total bookings).
What is the most popular airline from London Heathrow Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Buenos Aires is British Airways (100% of total bookings).
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?
Yes. All flights to Buenos Aires from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to Buenos Aires?
Once all potential London to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from London to Buenos Aires right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.