Prince William, Prince Harry, Queen Elizabeth Kate Middleton and Prince Philip
Pictured: Prince Philip, Queen Elizabeth II, Kate Middleton, Prince Harry and Prince William during 'The Patron's Lunch' celebrations for The Queen's 90th birthday at The Mall on June 12, 2016 in London. Getty Images/Jeff Spicer

Prince William and Prince Harry’s penchant for air travel has been criticized.

According to Daniela Elser of News.com.au, the Duke of Sussex had been a perennial favorite despite his past scandals including the controversial Nazi costume and naked Las Vegas scandal until now. Prince Harry has been criticized for his “naughty helicopter habit.”

Last week, Meghan Markle’s husband spoke at WE Day in Wembley Stadium and encouraged the audience to take action against climate change. It was later learned that two days before the event, the royal took a 45-minute chopper trip that cost $7,854. He could have saved more if he took the 83-minute train trip for only $45.

The helicopter emissions are at least five times higher compared to other transport modes and this contradicts his speech. Due to this, Prince Harry was called “hypocrite” and “full of hot heir.”

Elser added that Prince Harry shares this penchant for air travel with his older brother Prince William. The Duke of Cambridge routinely uses private helicopters. The second-in-line to the throne made headlines back in 2008 for borrowing one of the military’s $18 million Chinook helicopters to make a quick visit to Kate Middleton when they were still dating. Prince William could have driven there in just around half an hour.

Prince William was also criticized for flying himself to cousin Peter Phillips’ stag do and stopping along the way in London to pick up Prince Harry. Prince Charles and Princess Diana’s sons love for traveling using expensive choppers is at odds with the older royals “more frugal ways.”

Queen Elizabeth II and Prince Philip regularly travel by public train. The Queen and Duke of Edinburgh head to Sandringham every year and they stick to this mode of transportation since then.

In December, Her Majesty was photographed arriving at King’s Lynn Station from London to spend the holidays in Sandringham. The Queen was seated in first class and walked alongside her security. She reportedly briefly mingled with the other passengers when she walked her way inside the train before taking her seat.

Prince William and Prince Harry’s choice to use choppers was compared to their uncle Prince Andrew’s expensive travel habits. The Duke of York was dubbed “Air Miles Andy” for always traveling with five officials, flying first class on chartered planes and staying in five-star hotels.