Prince William is breaking royal protocol by flying with his kids

The best part about a royal tour? Well, obviously any Prince George or Princess Charlotte sightings.

Through the years, George and Charlotte's most adorable moments happen when they disembark planes with their mom and dad. We still can't get over Charlotte's first attempt at a curtsy, or George's priceless post-flight face.

Unbeknownst to most, Prince William has actually been breaking unofficial royal protocol by flying with his children.

19 PHOTOS
Prince George on Royal Tour
See Gallery
Prince George on Royal Tour
Prince William, the Duke of Cambridge, his wife Catherine, The Duchess of Cambridge, Prince George and Princess Charlotte arrive at Tegel airport in Berlin, Germany, July 19, 2017. REUTERS/Kay Nietfeld/POOL
Prince George holds the hand of his father Britain's Prince William, Duke of Cambridge, upon their arrival at Tegel airport in Berlin, Germany, July 19, 2017. REUTERS/Steffi Loos/Pool
BERLIN, GERMANY - JULY 19: Prince George arrives at Berlin's Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Karwai Tang/WireImage)
Prince George arrives at Tegel airport in Berlin, Germany, July 19, 2017. REUTERS/Fabrizio Bensch TPX IMAGES OF THE DAY
Prince William, the Duke of Cambridge, his wife Catherine, The Duchess of Cambridge, Prince George and Princess Charlotte arrive at Tegel airport in Berlin, Germany, July 19, 2017. REUTERS/Kay Nietfeld/POOL TPX IMAGES OF THE DAY
BERLIN, GERMANY - JULY 19: Prince George arrives at Berlin's Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Karwai Tang/WireImage)
BERLIN, GERMANY - JULY 19: Prince George of Cambridge during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Isa Foltin/Getty Images)
BERLIN, GERMANY - JULY 19: Prince George of Cambridge during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Isa Foltin/Getty Images)
BERLIN, GERMANY - JULY 19: Prince George of Cambridge during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Isa Foltin/Getty Images)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince George of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince George of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince George of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince George of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince George of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
The Duke and Duchess of Cambridge with Prince George and Princess Charlotte arriving at Berlin Airport in Germany.
Prince George after arriving at Berlin Airport in Germany.
The Duke of Cambridge and Prince George arrive at Warsaw Chopin airport, on day one of their five-day tour of Poland and Germany. PRESS ASSOCIATION Photo. Picture date: Monday July 17, 2017. See PA story ROYAL Cambridge. Photo credit should read: Dominic Lipinski/PA Wire
Prince George at Warsaw's Chopin Airport with the Duke and Duchess of Cambridge and Princess Charlotte at the start of their five-day tour of Poland and Germany.
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

William's father, Prince Charles, is the current heir to the throne followed by William and his kids, Prince George and Princess Charlotte. It has been standard practice, thought not official, for those in the succession to the throne to travel separately so that if anything should happen to the plane, their royal lineage would stay intact. In fact, George and Charlotte shouldn't be traveling on the same plane either.

A spokesperson for the royal family told the BBC at the time, "While there is no official rule on this, and royal heirs have travelled together in the past, it is something that the Queen has the final say on."

Prince William asked the Queen for permission to travel with Prince George on their royal tour to Australia and New Zealand in 2014 when his son was less than a year old. Most recently, Kate and William brought their kiddos along to Poland and Germany. And if you recall, George and Charlotte also accompanied their parents to Canada last year.

Breaking protocol is nothing new for the royal couple. When it comes to raising their children, Kate is reportedly "keeping stuffy ­royal protocol far from their apartment at Kensington Palace."

Check out the slideshow above for Prince George's cutest royal tour moments!

30 PHOTOS
Prince George and Princess Charlotte attend party in Canada
See Gallery
Prince George and Princess Charlotte attend party in Canada
Britain's Prince William (2nd R), Catherine, Duchess of Cambridge (2nd L), Prince George and Princess Charlotte (L) watch as a man inflates balloons at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge plays with bubbles at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Carcross, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
Britain's Prince William (R), Catherine, Duchess of Cambridge (2nd L), Prince George and Princess Charlotte (R) attend a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George plays with a bubble gun at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George watches as bubbles are blown at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George watches as bubbles are blown at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
The Duchess of Cambridge with her daughter Princess Charlotte at a children's party for Military families at Government House in Victoria during the Royal Tour of Canada.
The Duchess of Cambridge with her daughter Princess Charlotte at a children's party for Military families at Government House in Victoria during the Royal Tour of Canada.
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Carcross, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge and Prince George of Cambridge, Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Carcross, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
Britain's Prince William and his wife Kate, the Duke and Duchess of Cambridge, take part in a tea party with their children Prince George and Princess Charlotte at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince William and his wife Kate, the Duke and Duchess of Cambridge, take part in a tea party with their children Prince George and Princess Charlotte at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince George plays with a bubble gun at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince George plays with bubbles as Prince William looks on during a children's tea party at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince William blows up a balloon as he and his wife Kate, the Duchess of Cambridge, take part in a tea party with their children Prince George and Princess Charlotte at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
Britain's Prince George plays with bubbles during a children's tea party at Government House in Victoria, British Columbia, Canada September 29, 2016. REUTERS/Jonathan Hayward/Pool
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Prince George of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge with Prince William, Duke of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: Prince George of Cambridge plays with bubbles at a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Chris Jackson - Pool/Getty Images)
VICTORIA, BC - SEPTEMBER 29: (NO UK SALES FOR 28 DAYS) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge attend a children's party for Military families during the Royal Tour of Canada on September 29, 2016 in Victoria, Canada. (Photo by Pool/Sam Hussein/WireImage)
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

Read Full Story

Sign up for the Best Bites by AOL newsletter to get the most delicious recipes and hottest food trends delivered straight to your inbox every day.

Subscribe to our other newsletters

Emails may offer personalized content or ads. Learn more. You may unsubscribe any time.