A KLM flight carrying the Queen of Belgium was forced to make an emergency landing after a crack appeared in the the plane's cockpit windshield.

Queen Mathilde was on a 11-hour flight from Amsterdam to San Jose in Costa Rica for a three-day trip organised by Unicef when the damage to the Boeing 787-9 occurred, Independent reported.

As a result, the pilot requested a priority landing at the destination airport, with the plan landing 11 minutes early on Sunday at 5pm local time.

On board was Belgium royal commentator Wim Dehandschutter, who said he was surprised to learn about issue on landing. He wrote on X: “The airplane with Belgian Queen Mathilde landed in Costa Rica with a cracked windshield.

"I was on that flight. As passengers, we didn’t notice anything, and we didn’t receive any notification during the flight or upon landing.