Moscow Sheremetyevo Airport
Receiving approximately 30 million incoming travelers annually, Moscow Sheremetyevo quite frankly is unable to maintain this level of traffic. Missing flight connections here is a common fault due to long security checks, visa and passport issues and the pure lack of a streamlined process. A few adjustments here in planning could send this airport back up the list for sure. Until then however.. best avoid.

Moscow Sheremetyevo Airport
Netaji Subhash Chandra Bose International Airport, Calcutta, India
A laughable airport, one ‘airlinequality.com’ user labels the airport as the “funniest terminal I’ve ever seen”. Lacking hygiene, working services; the structure and layout of the system is poorly planned and annoying to say the least. Nothing is where it would need to be, announcements are non-existent. A truly confusing airport experience.

Netaji Subhash Chandra Bose International Airport, Calcutta, India