HNA Hainan Airlines will launch a direct Haikou–Phnom Penh route on December 12, 2026, and plans to extend the route to Taiyuan from December 22, after which the route will be adjusted to Taiyuan–Haikou–Phnom Penh. The launch of this route will further expand Haikou's route network to Southeast Asia and effectively promote exchanges and cooperation between China and Cambodia in economy, trade, culture and other fields.

It is reported that the Hainan Airlines Haikou–Phnom Penh international route is scheduled to operate three round-trip flights per week, on Tuesdays, Thursdays and Saturdays. The outbound flight is scheduled to depart Haikou Meilan International Airport at 13:50 Beijing time and arrive at Phnom Penh Techo International Airport at 15:00 local time, with an estimated flight time of 2 hours and 10 minutes. The return flight is scheduled to depart Phnom Penh Techo International Airport at 16:05 local time and arrive at Haikou Meilan International Airport at 19:20 Beijing time, with an estimated flight time of 2 hours and 15 minutes.

(From http://www.caacnews.com.cn/)