The end of February to mid-March every year is the prime time for off-peak travel after the winter vacation and the Spring Festival travel season. Most of the major domestic scenic spots also implement off-season fares, which can be said to be "less people, less expenses" The lowest air ticket price from Beijing to Chongqing is about 290 yuan, which is 1.1% off the economy class fare.
Air tickets to Southeast Asia are roughly equivalent to about 1/4 of the price during Spring Festival peak season.