Travelling overseas used to be a hassle for Japanese, because Narita International Airport is located far away from the central city. However, from October 21st this year, an additional airport, Haneda International Airport is officially open. It is located just a few minutes from Tokyo, a much shorter distance compared to Narita, which is about 1.5 hours by express train.
Unfortunately, there are still many limitations of Haneda, which at this stage it only covers 17 major cities around the world, while Narita covers more than 40 cities.