The world’s largest dam, the Three Gorges Dam is in Yichang. The city of four million is otherwise popular as a casting-off point for Yangtze cruises. The city and surrounds offers a number of other attractions, mostly centered around the dam or the river itself.
Book cheapest flight tickets to Yichang. You can see the cheapest month to fly and a snapshot of flight prices for the following month. Also, don't forget to factor in your travelling time - the typical flight from London Heathrow to Yichang takes 18 hours, 20 minutes