Prince William.Photo: DANNY LAWSON/POOL/AFP via Getty ImagesQueen Elizabethis reportedly urgingPrince Williamto give up flying via helicopter with his young family.It has been a long-held convention that the heir to the throne doesn’t fly with his family for fear that tragedy might strike, but William has been doing to travel back and forth from London to Norfolk, where he andKate Middletonhave their Anmer Hall country home, according toThe Sun on Sunday.The paper said that the Queen, 95, has told courtiers that she would “like William to stop flying himself, particularly in bad weather, as helicopters are not the safest form of transport. It keeps the Queen awake at night and she is understandably very worried,” a source close to the monarch told the paper.“She knows William is a capable pilot but does not think it is worth the risk for all five of them to carry on flying together, and can’t imagine what would happen. It would spark a constitutional crisis,” the article continued.Chris Jackson/Getty ImagesAfter his fatherPrince Charles, 73, William is next in line to the throne withPrince George, 8, third in line.Buckingham Palace tells PEOPLE it “doesn’t comment on private conversations.“William is a skilled pilot, learning in the Royal Air Force, where he ultimately flew demanding missions in harsh weather over the Irish Sea and Welsh mountains as a search and rescue pilot. He then went on to work in the civilian sector as anAir Ambulance pilot in East Anglia, the area around his country home Anmer Hall.Can’t get enough ofPEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton,Meghan Markleand more!Samir Hussein/WireImageWhen William and Kate took a then-9-month-oldPrince Georgeto Australia and New Zealand in 2014, an aide said at the time that the Queen had given permission for the two heirs to take the long flight together. “While here is no official rule on this, and royal heirs have travelled together in the past, it is something the Queen has the final say on,” the official added.The practice has been further relaxed in recent years with the arrivals ofPrincess CharlotteandPrince Louis.

Prince William.Photo: DANNY LAWSON/POOL/AFP via Getty Images

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Queen Elizabethis reportedly urgingPrince Williamto give up flying via helicopter with his young family.It has been a long-held convention that the heir to the throne doesn’t fly with his family for fear that tragedy might strike, but William has been doing to travel back and forth from London to Norfolk, where he andKate Middletonhave their Anmer Hall country home, according toThe Sun on Sunday.The paper said that the Queen, 95, has told courtiers that she would “like William to stop flying himself, particularly in bad weather, as helicopters are not the safest form of transport. It keeps the Queen awake at night and she is understandably very worried,” a source close to the monarch told the paper.“She knows William is a capable pilot but does not think it is worth the risk for all five of them to carry on flying together, and can’t imagine what would happen. It would spark a constitutional crisis,” the article continued.Chris Jackson/Getty ImagesAfter his fatherPrince Charles, 73, William is next in line to the throne withPrince George, 8, third in line.Buckingham Palace tells PEOPLE it “doesn’t comment on private conversations.“William is a skilled pilot, learning in the Royal Air Force, where he ultimately flew demanding missions in harsh weather over the Irish Sea and Welsh mountains as a search and rescue pilot. He then went on to work in the civilian sector as anAir Ambulance pilot in East Anglia, the area around his country home Anmer Hall.Can’t get enough ofPEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton,Meghan Markleand more!Samir Hussein/WireImageWhen William and Kate took a then-9-month-oldPrince Georgeto Australia and New Zealand in 2014, an aide said at the time that the Queen had given permission for the two heirs to take the long flight together. “While here is no official rule on this, and royal heirs have travelled together in the past, it is something the Queen has the final say on,” the official added.The practice has been further relaxed in recent years with the arrivals ofPrincess CharlotteandPrince Louis.

Queen Elizabethis reportedly urgingPrince Williamto give up flying via helicopter with his young family.

It has been a long-held convention that the heir to the throne doesn’t fly with his family for fear that tragedy might strike, but William has been doing to travel back and forth from London to Norfolk, where he andKate Middletonhave their Anmer Hall country home, according toThe Sun on Sunday.

The paper said that the Queen, 95, has told courtiers that she would “like William to stop flying himself, particularly in bad weather, as helicopters are not the safest form of transport. It keeps the Queen awake at night and she is understandably very worried,” a source close to the monarch told the paper.

“She knows William is a capable pilot but does not think it is worth the risk for all five of them to carry on flying together, and can’t imagine what would happen. It would spark a constitutional crisis,” the article continued.

Chris Jackson/Getty Images

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After his fatherPrince Charles, 73, William is next in line to the throne withPrince George, 8, third in line.

Buckingham Palace tells PEOPLE it “doesn’t comment on private conversations.”

William is a skilled pilot, learning in the Royal Air Force, where he ultimately flew demanding missions in harsh weather over the Irish Sea and Welsh mountains as a search and rescue pilot. He then went on to work in the civilian sector as anAir Ambulance pilot in East Anglia, the area around his country home Anmer Hall.

Can’t get enough ofPEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton,Meghan Markleand more!

Samir Hussein/WireImage

The Duke And Duchess Of Cambridge Visit Germany - Day 3

When William and Kate took a then-9-month-oldPrince Georgeto Australia and New Zealand in 2014, an aide said at the time that the Queen had given permission for the two heirs to take the long flight together. “While here is no official rule on this, and royal heirs have travelled together in the past, it is something the Queen has the final say on,” the official added.

The practice has been further relaxed in recent years with the arrivals ofPrincess CharlotteandPrince Louis.

source: people.com