India, July 30 -- A passenger recently shared his frustrating experience aboard a nearly 20-hour international flight, claiming fellow travellers turned the journey into a "chaotic nightmare" by chatting loudly, letting children repeatedly kick seats and ignoring basic flight etiquette.

In a Reddit post titled "Paid for extra legroom on a 20-hour flight, ended up in a chaotic nightmare. Here's why basic flight etiquette needs to change," the traveller said that the flight from Vancouver to Delhi was originally scheduled to last around 16 hours, but stretched to almost 20 hours because of a mid-air medical emergency and a 3.5-hour tarmac hold.

He said that he had paid extra for a bulkhead seat, hoping to get some rest during the long jou...