The Vietnam Aviation Authority has ordered the carrier, VietJetAir, launched last year, to pay 600 pounds (USD 938) for violating the local aviation regulations by organising an unapproved show on a plane, the 'Daily Mail' reported.
VJA hosted the bikini show, which was called a Hawaiian dance performance with the participation of contestants from a local beauty pageant.
"It was the first flight to a beach town, so we came up with the idea of getting a number of girls in bikinis to dance and make passengers happy to improve our customer service," a VietjetAir official was quoted as saying by the paper.
The plane had already reached its safe altitude before the time the show occurred, the official claimed.
A string of women in Hawaiian bikinis trooped through the cabin on the inaugural VietJetAir (VJA) flight from Ho Chi Minh City to the coastal holiday destination of Nha Trang in Vietnam.
The passengers photographed and took videos of the scantily-clad women, performing a three minute hip-shaking dance in front of them during the night flight, which later featured on the Internet.
Nguyen Trong Thang, chief inspector of the Civil Aviation Administration of Vietnam said he thought the airline made a serious error of judgement in giving the go ahead for the sky high show, the paper reported.