Key airports and railway stations in Japan's major urban areas became congested with travelers Thursday as the annual rush of summer holidaymakers got into full swing.A number of domestic flights from Haneda airport in Tokyo, notably those bound for the northern main island of Hokkaido and southern islands in Okinawa, were fully booked while almost all reserved seats on westbound Shinkansen bullet trains leaving Tokyo Station were full throughout the day.The international hub airports of Narita near Tokyo and Kansai, located south of central Osaka, were packed with people going on overseas …READ FULL ARTICLE