The airlines are reducing the number of flights as demand for travel drops because of the outbreak.
The airline operates daily flights from London's Heathrow Airport to Shanghai and Beijing. It took the measure a day after Britain's Foreign Office updated its travel advice on China, warning against "all but essential travel" to the mainland, not including Hong Kong and Macao.
Air Seoul, a budget airline, became the first South Korean airline to suspend its fights to mainland Chinese destinations that wasn't Wuhan, stopping its flights to the cities of Zhangjiajie and Linyi.
Lion Air said it has canceled more than 50 flights to China well into February. The flights are from five international airports in Denpasar, Manado, Surabaya, Jakarta and Batam to 15 airports in China.
Lion Group spokesman Danang Mandala Prihantor said the suspension would be phased in gradually and would continue until further notice.
China has cut off access to Wuhan and 16 other cities to prevent people from leaving and spreading the virus further. The outbreak has infected more than 6,000 on the mainland and abroad.