Travelling to India and China? Pack your patience. Airports in those countries top a third annual list of the most delay-prone terminals on Earth.

Indira Gandhi international airport, in Delhi, takes the prize for the airport with the least timely arrivals in the world: just 45% of its scheduled passenger flights arrive on time. Beijing Capital international airport has the worst departure record, with just 38% of commercial passenger flights leaving as scheduled. To gather the information discussed here, Forbes magazine relied on FlightStats, a service that tracks historical and real-time flight information around the globe.

In pictures: World’s most delayed airports

Officials from the Delhi and Beijing airports could not be reached for comment, but their status should come as no surprise. Both were at or near the top of Forbes’s most-delayed list last year.

Chhatrapati Shivaji international airport, in Mumbai, and Istanbul Ataturk international airport round out the top three worst airports for timely arrivals. For departures, Dubai international airport and Moscow Sheremetyevo international airport follow Beijing.