United Airlines has suspended some of its flights to Tokyo, Osaka, Singapore and Seoul and extended its flight cancellations to mainland China and Hong Kong through 30 April.

The Chicago-based airline has cancelled flights from Los Angeles and Houston to Tokyo Narita between 8 March and 24 April, and flights from Chicago O’Hare to Tokyo Narita between 8 and 27 March. After 28 March, the Chicago route will switch to Tokyo Haneda.

As of 28 February, United states that it will proceed with its regularly scheduled flights to Tokyo Haneda in March and April.

Flights from Newark to Tokyo Narita will be reduced to five times weekly from daily in April, and flights from Honolulu to Tokyo Narita will be downgauged the same month. Daily flights to Osaka Kansai from San Francisco will be reduced to five times weekly in April.

San Francisco-Singapore flights will be cut from twice daily to once daily between 8 March and 24 April.

United will reduce San Francisco-Seoul Incheon flights to three times weekly between 8 March and 30 April, from daily in March and twice daily in April. In addition, San Francisco-Taipei Taoyuan flights will be downgauged in March and April.

Earlier this week, United withdrew its full-year 2020 guidance because of unexpected business losses from the coronavirus outbreak in the Asia Pacific region. United operates the most routes to mainland China and Hong Kong among US majors. The China and Hong Kong routes represent approximately 5% of the carrier’s previous planned capacity for 2020, with its other trans-Pacific routes representing an additional 10% of its planned capacity, the airline stated in a 24 February US Securities and Exchange Commission filing.