Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Adelaide, across the seven airlines that offer this route. We've found that 26 / Feb / 2026 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.
The most popular airlines offering flights to Adelaide are British Airways, Qantas & Qatar Airways. British Airways is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?
Your flight from London Heathrow to Adelaide will take at least 20 hrs 30 mins. On average, it takes 22 hrs 55 mins to fly the 16298 km distance. Take a look at flight times to see which one works best for you.
If you want to travel in December, it's best to book your flights early, as this is peak season in Adelaide. The cheapest month to fly is normally June – try searching three to four months prior to then to get a bargain. You can also search by month, which will reveal the cheapest time of the week to fly.
