ANA canceled 40 000 seats on flights to China
Due to conflicts between China and Japan, All Nippon Airways said it had canceled 40 000 seats on flights between the two countries, between September and November. I think you have read / heard / seen, the two Asian countries are "bumping" on a patch of land under which there would be large deposits of oil.
In addition to canceled flights by ANA, China Eastern Airlines has announced that it is delaying the launch of flights between Shanghai and Sendai from northern Japan, and Japan Airlines has reduced the number of flights to Hong Kong from 10 to 3 per week.
I advise you to be careful when buying your tickets and how to establish links to ASIA!