Cheap flights from London to Adelaide from $629

The month of May is, on average, the cheapest month to fly to Adelaide from London, with most prices found around $1,811. If you aren’t able to travel during the month of May, then book flights to Adelaide from London during February instead. Flights to Adelaide in February, while not as cheap as those in May, still average around $1,824.

You are more likely to see cheaper flights to Adelaide from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Adelaide for around $2,122 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Adelaide from London for as low as $1,928 on momondo.

You could potentially save up to 3% on your flight if you consider stops on a London to Adelaide flight.

As of March 2026, prices for London to Adelaide flights are approximately 5% cheaper when compared to flights at the same time last year.

China Southern, Singapore Airlines, and Qatar Airways are the most popular carriers operating from London to Adelaide

Qatar Airways, Malaysia Airlines and Emirates are the top three most popular airlines that fly to Adelaide from London according to our data. Qatar Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Adelaide. Keep in mind that there are 3 different airlines that fly to Adelaide on a routine basis, so you have a few additional options to choose from.

Singapore (SIN) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

Flights via San Francisco (SFO) offer the lowest average return price of $1,801.

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 21h 30m.

Singapore (SIN) has the shortest average stopover time for this route: 1h 25m.