On June 14, 2025, the Red Arrows made history by conducting the world's first eco-friendly flypast over London, using sustainable fuel and vegetable oil to honor King Charles III's birthday.

All nine Hawk fast-jets from the aerobatic team were powered by a blend of sustainable aviation fuel (SAF) and hydrotreated vegetable oil (HVO), marking a significant milestone as the first time renewable biofuel has been used to create vapour trails in an aerobatic display.

Minister for the Armed Forces, Luke Pollard, praised the Red Arrows for leading the way in adopting environmentally friendly aviation practices, highlighting their role in the Royal Air Force's commitment to combat climate change.

Squadron leader Andy King emphasized that the Red Arrows aim to inspire future generations, showcasing innovation in aviation through their commitment to sustainable technology.

This achievement follows innovative trials conducted by RAF engineers and logisticians to develop sustainable fuel options, reflecting the Royal Air Force's efforts to meet the UK's net zero target.

The RAF is actively exploring alternative fuels, as it contributes 40 percent of Defence's carbon emissions, aligning with the UK Government's environmental goals.

After the flypast, King Charles and Queen Camilla were seen on the Buckingham Palace balcony with their family, including Prince George, Princess Charlotte, and Prince Louis, who showed excitement during the display.

The ceremony featured a parade of the Royal family from Buckingham Palace to Horse Guards Parade, attended by thousands of spectators.

The Red Arrows' 2025 season is set to run until October, featuring 60 shows across the UK and mainland Europe.

During the event, the Royal family observed a minute's silence for the victims of the Air India disaster, wearing black armbands in remembrance.

King Charles III, a strong advocate for sustainability and climate action, expressed delight over the use of sustainable fuel during the flypast, although he was not directly involved in the decision-making process.