Cheap flights from Belfast to Buenos Aires
Cheap return flights from Belfast to Buenos Aires
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Buenos Aires flight facts
What you need to know
What are the cheapest airlines?
- Iberia
- Air Europa
- LATAM Airlines
These airlines usually offer the cheapest flights from Belfast to Buenos Aires.
What airlines fly indirectly?
- British Airways
- KLM
- Air France
These airlines fly from Belfast to Buenos Aires, but you’ll have at least one layover.
How long is the flight?
18 hours 30 minutes
This is the shortest flight time from Belfast to Buenos Aires.
Alternative flights from the UK to Buenos Aires
Check out prices for other routes
Alternative flights from Belfast
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Belfast/Buenos Aires route. There are around 35 flights on any given week from the UK to Buenos Aires and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Belfast to Buenos Aires
Tips and advice from our flight experts
You've searched for flights from Belfast to Buenos Aires. We've found 25 flights and compared them to give you the best offer. Iberia is the average cheapest airline for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for £74 from Belfast to Buenos Aires on 01/03/2026 at 20:05.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 11,600 km flight from Belfast to Buenos Aires.
To find the best offers, book at least 2-3 months in advance. Consider traveling in the shoulder season. Iberia is a popular and affordable choice, with an average flight duration of 18 hours 30 minutes. After selecting an offer, fill out your information and payment. Consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Buenos Aires
Where other people are flying to
