Cheap flights from Buenos Aires to London Heathrow

Q: What are the cheapest airlines?

British Airways, Iberia Airlines, LATAM. These airlines usually offer the cheapest flights from Buenos Aires to London Heathrow.

Q: What airlines fly indirectly?

British Airways, Delta Air Lines, Iberia Airlines, LATAM, KLM. These airlines fly from Buenos Aires to London Heathrow, but you’ll have at least one layover.

Q: How long is the flight?

15 hrs 20 mins. This is the shortest flight time from Buenos Aires to London Heathrow.

from as little as £1,003

36 nights in London, departing Buenos Aires Ezeiza Ministro Pistarini Airport on 10 / Apr / 2025 with Air Canada (price found 37 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from Buenos Aires to London Heathrow

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The Buenos Aires / London Heathrow route

All 11116 km of it

Cheap flight deals for this route

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London Heathrow flight facts

What you need to know

What are the cheapest airlines?

British Airways
Iberia Airlines
LATAM

These airlines usually offer the cheapest flights from Buenos Aires to London Heathrow.

What airlines fly indirectly?

British Airways
Delta Air Lines
Iberia Airlines
LATAM
KLM

These airlines fly from Buenos Aires to London Heathrow, but you’ll have at least one layover.

How long is the flight?

15 hrs 20 mins

This is the shortest flight time from Buenos Aires to London Heathrow.

Alternative flights from the UK to London Heathrow

Check out prices for other routes

Buenos Aires to London City Airport

from £1,763 pp

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Buenos Aires to London Gatwick

from £1,329 pp

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Alternative flights from Buenos Aires

You might find cheaper flights nearby

London from Buenos Aires Arpt. Jorge Newbery Airport

from £1,070 pp

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London from Buenos Aires Ezeiza Ministro Pistarini Airport

from £1,003 pp

Find flights

10 / Apr / 2025 is currently the lowest priced day of the year to fly the Buenos Aires/London Heathrow route. There are around 26 flights on any given week from the UK to London Heathrow and the cheapest month to fly right now is April.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

2 °C

AVG

11 °C

HIGHEST

24 °C

Rainfall (mm)

LOWEST

38.1 mm

AVG

52.5 mm

HIGHEST

66 mm

Key facts about London Heathrow

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from Buenos Aires to London Heathrow

Tips and advice from our flight experts

To help you find the best deal, we've gathered all the flight options from Buenos Aires to London Heathrow. Look out for LATAM flights – they usually have the lowest prices. If you can’t find what you're looking for, try widening your search to include the other airports in London.

Every week, there are 26 direct and indirect flights connecting London and Buenos Aires. On average, it takes 20 hrs 50 mins to fly the 11116 km between Buenos Aires and London.

Prices vary throughout the year but, right now, the cheapest date to fly is 10 / Apr / 2025. If you're looking for a budget break to United Kingdom and are flexible on dates, search for flights by month to find the best offers.

Once you’ve made your flight selection, click through to the next page to complete your booking. You can also explore accommodation and car hire options in United Kingdom by using the tabs at the top of the page.