Name the major airports in the Tokyo and Osaka regions.

In the Tokyo region, the major airports are:

1. Tokyo International Airport (Haneda Airport) - This is one of the two primary airports that serve the Greater Tokyo Area. It is the primary base of Japan's two major domestic airlines, Japan Airlines and All Nippon Airways.

2. Narita International Airport - This is the other primary airport serving the Greater Tokyo Area. It is located in Narita, Chiba and is the primary international hub for Japan Airlines and All Nippon Airways.

In the Osaka region, the major airports are:

1. Kansai International Airport - This is an international airport located on an artificial island in the middle of Osaka Bay. It is the international gateway for Japan's Kansai region, which contains the major cities of Kyoto, Kobe, and Osaka.

2. Osaka International Airport (Itami Airport) - This is a domestic airport located in Itami, a city in Hyogo Prefecture. Despite its "international" name, the airport's international operations were transferred to Kansai International Airport in 1994.