A British aviator has touched down in Sydney after a marathon 27,000-kilometre journey from the United Kingdom to Australia.

Beginning on October 1 in England, Tracey Curtis-Taylor, 53, single-handedly piloted the 1942 Boeing Stearman biplane across 23 countries over the course of three months.

She flew across the Mediterranean Sea to Jordan, over the Arabian Desert, across the Gulf of Oman to Pakistan, through India and on to Myanmar, Thailand, Malaysia and Indonesia before crossing the Timor Sea and landing in Darwin on January 1.

When she arrived at her final destination on Saturday, she said she was overcome with euphoria.

"I just was so relieved to land, to come to quite complicated airspace into the international airport, I was terrified I'd bring the whole thing to a standstill," she said.

Cockpit of 1940s era biplane, with modern addition of satellite navigation. ( Supplied )

The flight was modelled after Amy Johnson, the first female pilot to fly solo from Britain to Australia in 1930.

"It was so brilliant, she had so little time, she was so naive about what she was doing, and she survived against the odds — she basically crashed her way to Australia," Curtis-Taylor said.

"I can't recreate what Amy did — it was so special — but it is a tribute to her.

"Her story deserves to be remembered and celebrated so I like to think I made some contribution to her memory."

Curtis-Taylor said she always knew she would finish what she had set out to achieve.

"You do these things and people would say: 'she's attempting to fly' and I'd think: 'I'm not attempting, I'm flying'," she said.

"There was never a moment of doubt about it you just press on and that's what you need, you need determination and stamina."

English aviation pioneer Amy Johnson, pictured two years before her death in 1941. ( Supplied: Rex/Shutterstock )

However, she said the flight was not without its challenges.

"It's an open cockpit, this is old-fashioned flying, so the weather was always the biggest concern. You were exposed to the elements. There was some shocking weather," she said.

"Very bad visibility, dust storms, thunder storms, but it's been exciting.

"You're living the moment, and it's the challenge of the elements, and the old flying machine … it's been brilliantly exciting."

When Curtis-Taylor touched down, she told reporters the aircraft, which is more than 73 years old, had served her well.

"Do you know what? It hasn't missed a beat," she said.

"I mean this is the dream airplane for me, this is the love of my life. I have boundless admiration for it."

The biplane will now be shipped to America and prepped to fly across the United States as part of Boeing's centenary celebrations.