ANY Indian Airport
For all those who are critical of LHR...the airports in India are VILE. No investment in infrastructure from a country who is suppose to be the next economic powerhouse. Security screening which is questionable (Xray machines have only just been replaced at DEL with modern ones). 1950's proceedures for crew clearance of customs/immigration on arrival/departure.
Sydney is overcrowded for the 5-8 a.m. arrivals with horrendous lines to leave customs. Hindered by some stupid reality TV show being filmed during the CHAOS the occurs every morning at Kingsford Smith every morning.
Any US airport full of people trying to get far too much carry on baggage on to aircraft. Servere lack of eating/shopping facilities, esp. during irregular operations---airports don't seem to stipulate eating facilities stay open til last departure so passengers can use refrement vouchers when airlines finally give them...Need better SLA's.
Madrid...another Sir RR classic-need I say more?
Best airports:
Johannesburg-vast improvement with renovations esp. International terminal, very few off pier departures/arrivals now.
Hong Kong-modern, effcient good shops/restaurants/fantastic link to city.
Harare-fantastic modern terminal...shame the country has gone to pot.