Sarah Ferguson left Balmoral early after her former father-on-law Prince Philip, 93, arrived before he was expected.
The Duchess of York was at the Royal Family’s Scottish home with her ex husband Prince Andrew, also 59.
However, reports came that she left early as Prince Philip has never been able to move past the initial feud caused when Sarah and Andrew split up.
Sarah Ferguson and Prince Andrew had arrived separately, him in a private jet and she on a commercial flight.
The snaps were posted to Instagram and showed the Duchess walking through Aberdeen airport.
The poster of the images wrote: “The Duchess of York, pictured landing in Aberdeen, has joined Prince Andrew in Balmoral amid rumours the couple are rekindling their romance.”
The Duchess wore a black dress with black slippers featuring cat faces.
She wore a blue blazer over her torso, with an orange leather bag.
Sarah Ferguson appeared to be wearing minimal make up, with her red hair coiffed.
She appeared far from her usual upbeat self, according to a body language expert.
Body language expert Judi James told Express.co.uk the images were “powerful”.
She said: “Usually ebullient and positive, Sarah looks uncharacteristically serious and reflective in these poses, walking with her head leaning forward as though impatient to get to her destination and with an eye expression that makes her look almost haunted.
“In one shot her lips are sucked in, which is often associated with regret or unhappiness and in the other her mouth is partially open but not in a smile.”
The expert suggested Fergie may have actually been heading to comfort someone rather than on a holiday.
Judi added: “Poses like this could imply she was travelling to help or offer support rather than to enjoy herself.”
Sarah Ferguson’s Instagram often adds as a window into her life for fans. /life-style/life/1163429/sarah-ferguson-duchess-of-york-princess-beatrice-prince-andrew-Instagram-pictures
She recently posted images of her “soul mate” Andrew for her daughter Beatrice’s birthday.
Many pictures showed Sarah and Andrew when they were still happily married.
A black and white shot showed a smiling Sarah looking directly in the lens and she holds a baby Beatrice on her hip. The little girl is pointing at something Andrew, on the baby’s left, is pointing to as well.
Sarah Ferguson: Five facts about the Duchess of York
Sarah is the second daughter of Major Ronald Ferguson and Susan Mary Wright.
Her parents divorced in 1974, with her mother going on to marry polo player Héctor Barrantes in 1975 and moving to Argentina. Sarah stayed in the UK with her father, who remarried in 1976 and went on to have three more children.
Sarah married Prince Andrew on 23 July 1986 at Westminster Abbey in London.
She wore an ivory-silk wedding gown designed by Lindka Cierarch which had a 17 foot train and 20 foot veil. As is tradition, Sarah wore a diamond tiara, and her wedding band was crafted from Welsh gold.
The couple spent their honeymoon abroad the real yacht Britannia off the coast of the Azores Islands.
Sarah and Andrew divorced in 1996 after separating in 1992.
However the couple remain on good terms, even living together in the Royal Lodge from 2008 until Sarah moved to a ski chalet in Switzerland they bought together in 2015.
Sarah has written children’s books for many years, her first being a series about Budgie The Helicopter in the early 90s.
She has also been the US spokeswoman for WeightWatchers after famously battling her weight over the years.
On top of commercial endeavours, the Duchess devotes plenty of time to charity, including Children in Crisis, which she founded in 1993.
Fergie, as she is known to friends, uses both Twitter and Instagram.
She has over 200,000 followers across the platforms, and shares many insights in to her life.
Most of the Royal Family are not on social media, but are represented by Kensington Palace, Buckingham Palace, or Clarence House.
Sarah’s daughters, Beatrice and Eugenie, are the exception, with both joining their mother on social media.