Group 1 - Hainan Airlines will officially implement its winter-spring flight schedule starting from October 26, 2025, with new domestic routes and increased flight frequencies from Shenzhen [1][3] - The airline has added three new domestic routes from Shenzhen: Shenzhen-Qingdao-Harbin, Shenzhen-Wuhan-Shenyang, and Shenzhen-Ningbo-Changchun, enhancing travel options for winter travelers [3] - Popular routes such as Shenzhen-Zhengzhou, Shenzhen-Shanghai Pudong, and Shenzhen-Hangzhou will see increased frequencies, further catering to diverse travel needs [3] Group 2 - Hainan Airlines is offering an additional free luggage allowance for ski equipment on five European routes from Shenzhen, addressing the needs of ski enthusiasts [5] - The airline operates a total of 11 direct international routes from Shenzhen, including destinations like Vancouver, Paris, Madrid, and others, providing various options for business and leisure travelers [5] - Travelers are advised to check flight schedules and details due to potential adjustments in the flight plan after the seasonal change [5]