Kate Middleton beams while heading to church with Queen Elizabeth II

Sporting their Sunday best!

Kate Middleton offered a big smile on the car ride to church alongside Queen Elizabeth II in Scotland on Sunday morning. The Duchess of Cambridge and her husband, Prince William, flew to the U.K's northernmost country three days prior to be with the family's matriarch.

Kate chose a stylish navy double-breast herringbone coat for the outing, which she paired with a small black forward-leaning hat. The queen, sporting a vibrant pink coat and matching hat, looked equally cheerful, waving at the cameras and onlookers on their way to Crathie Kirk, the parish where they attended church.

In the front seat, alongside the driver, was William, who also offered a smile as their car rolled out of Balmoral Castle, where the family is staying. According to a source, Kate and William, as well as Prince Harry and Meghan Markle, are all visiting in Scotland at the queen's residence to mark the end of summer, however likely not at the same time.

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Kate Middleton attends church with Queen Elizabeth
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Kate Middleton attends church with Queen Elizabeth
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II and Catherine, Duchess of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II and Catherine, Duchess of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II and Catherine, Duchess of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II and Catherine, Duchess of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II and Catherine, Duchess of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Catherine, Duchess of Cambridge waves while she is driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge drive to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge drive to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge drive to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Catherine, Duchess of Cambridge waves while she is driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II and Catherine, Duchess of Cambridge are driven to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
CRATHIE, ABERDEENSHIRE - AUGUST 25: Queen Elizabeth II, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge drive to Crathie Kirk Church before the service on August 25, 2019 in Crathie, Aberdeenshire. Queen Victoria began worshiping at the church in 1848 and every British monarch since has worshiped there while staying at nearby Balmoral Castle (Photo by Duncan McGlynn/Getty Images)
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Kate and William flew commercial with their three children -- Prince George, 6, Princess Charlotte, 4, and 1-year-old Prince Louis -- after Meghan Markle and Prince Harry came under fire for recently taking a private jet to Ibiza, Spain, for the duchess' 38th birthday, a luxury which some argued runs counter to their environmental activism.

After the couple was roundly criticized for the flight, a number of fellow celebs, including Elton John and Ellen DeGeneres, showed their support.

"I am deeply distressed by today's distorted and malicious account in the press surrounding the Duke and Duchess of Sussex's private stay at my home in Nice last week," John wrote in a tweet on Aug. 19. "Prince Harry's Mother' Diana Princess of Wales was one of my dearest friends. I feel a profound sense of obligation to protect Harry and his family from the unnecessary press intrusion that contributed to Diana's untimely death."

The singer went on to explain that, when Harry and Meghan previously traveled to France, he was the one who provided the royals with a private flight, to ensure privacy and protection. He even made a contribution to Carbon Footprint in order to render the flight carbon neutral.

John concluded by writing, "I highly respect and applaud both Harry and Meghan's commitment to charity and I'm calling on the press to cease these relentless and untrue assassinations on their character that are spuriously crafted on an almost daily basis."

23 PHOTOS
Meghan Markle makes first solo outing with Queen Elizabeth
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Meghan Markle makes first solo outing with Queen Elizabeth
WIDNES, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive at Runcorn Train Station on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Neil Mockford/GC Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive at Runcorn Train Station on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Neil Mockford/GC Images)
RUNCORN, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II is greeted with Meghan, Duchess of Sussex as they arrive by Royal Train at Runcorn Station to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Runcorn, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Peter Byrne - WPA Pool/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II sits with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II sits with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II stands and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II sits and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II sitts and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II stands with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II sitts and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex during a visit to the Catalyst Museum by the Mersey Gateway Bridge on June 14, 2018 in Widnes, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Mark Cuthbert/UK Press via Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex during a visit to the Catalyst Museum by the Mersey Gateway Bridge on June 14, 2018 in Widnes, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Mark Cuthbert/UK Press via Getty Images)
RUNCORN, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive by Royal Train at Runcorn Station to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Runcorn, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Peter Byrne - WPA Pool/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II sits with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Children look on as Queen Elizabeth II and Meghan, Duchess of Sussex arrive for their visit to the Storyhouse on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Phil Noble - WPA Pool/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex visits the Storyhouse on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Phil Noble - WPA Pool/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex visit Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Chris Jackson/Getty Images)
CHESTER, ENGLAND - JUNE 14: Meghan, Duchess of Sussex meets the public as she and Queen Elizabeth II walk from Storyhouse to Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair opened a road bridge in Widness, visited The Storyhouse in Chester ofllowed by the Town Hall. (Photo by Anthony Devlin/Getty Images)
CHESTER, ENGLAND - JUNE 14: Meghan, Duchess of Sussex meets members of the public as she joins Queen Elizabeth II to walk from Storyhouse to Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair opened a road bridge in Widness, visited The Storyhouse in Chester ofllowed by the Town Hall. (Photo by Anthony Devlin/Getty Images)
CHESTER, ENGLAND - JUNE 14: Meghan, Duchess of Sussex waves as she joins Queen Elizabeth II to walk from Storyhouse to Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair opened a road bridge in Widness, visited The Storyhouse in Chester ofllowed by the Town Hall. (Photo by Anthony Devlin/Getty Images)
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