Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Iguassa Falls, across the six airlines that offer this route. We've found that 10 / Nov / 2025 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.
Iberia Airlines is the most popular airline that flies from London Heathrow to Iguassa Falls. But it's still worth looking at other options, as there are 40 flights to Iguassa Falls every week. If you want to broaden your search, look at flights departing from other airports.
The distance between London Heathrow to Iguassa Falls is 10067 km. Normally, it takes about 20 hrs 50 mins to fly, and you can definitely expect the journey to be at least 15 hrs. You can see the various flight times in the results.
Searching by month, for instance, will show you the best time of the week to fly.