Need to travel to and from the two places for a long time, how to buy a plane ticket is the most cost-effective?

Subscribe to airline newsletters: for example, Qatar Airways and Etihad Airways basically have promotional activities every month; AirAsia has ultra-low price promotion more than half a year in advance; China Eastern Airlines, China Southern Airlines and Air China all have member day discounts.

Official WeChat account or Weibo who pays attention to the promotion of preferential information: I personally recommend "Travel Radar" (Weibo and official WeChat account are both names). Brother radar doesn't have to pay me for advertising. What you did was really great. It is original, objective, timely and insightful. I have given it to many friends in Amway.

How to refund or reschedule:

The plan can't keep up with the changes, and occasionally it needs to be refunded or rescheduled. However, the refund fee for discounted air tickets is generally higher, sometimes even higher than the ticket price …

If the departure date is far away, you can wait for the flight change (flight cancellation or flight time change), and then refund or change the ticket for free.

The departure date is coming, and we haven't waited for such an opportunity. It is suggested to check the fare rules and contact the airlines to refund or change the ticket before the deadline to reduce the loss.