The reality star travelled overseas to promote her new fragrance and visit beau Kanye West.
But after returning to US on Sunday, the brunette insisted that the she was quite disappointed with British Airways.
“Very disappointed in British Airways for opening my luggage ‘n’ taking some special items of mine!” Kardashian, 31, tweeted.
“Some things are sentimental ‘n’ not replaceable.”
“What happened to the days when you could lock your bags! We need to get back to that. There's no sense of security & no trust!” she continued.
“Shame on you,” she added.
The reality star refrained from revealing what specific items had been removed from her bags.
However a British Airways spokesperson told the a news channel that they were looking into her claims.
'Look' how the Sheena Bora case has taken a toll on Indrani Mukerjea
Photos: Katrina Kaif, Parineeti Chopra, Shilpa Shetty's movie outing in Juhu
Birthday special: 14 Bollywood actors who made it big on TV
Photos: Vaani Kapoor, Poonam Pandey, Sana Khan at fashion event
Photos: Rishi Kapoor, wife Neetu, daughter Riddhima at book launch