United Airlines announced its plans to resume twice-weekly San Francisco-Seoul Incheon-Shanghai Pudong service from July 8 making it the second US airline to restart flights to China.

The service will be operated operating with Boeing 777-300ER equipment. 

United will operate flights from San Francisco to Shanghai on Wednesdays and Saturdays and customers travelling from Shanghai will return to San Francisco on Thursdays and Sundays.

United Airlines VP for international network and alliances Patrick Quayle noted the resumption of the service "is a significant step in rebuilding our international network."

Prior to suspending service to Shanghai in February due to COVID-19, United was the largest U.S. carrier serving China and operated five daily flights between Shanghai and its hubs in San Francisco, Los Angeles, Chicago and New York/Newark.

In July, across the Pacific, United will also reinstate service between Chicago and Tokyo with the addition of new service to Tokyo's Haneda Airport.

Additionally, the Chicago-based airline said it will resume service to Seoul; restart service to Hong Kong and will fly to Singapore via a stop at Hong Kong.

Earlier, Delta Air Lines said it will re-start service between Seattle and Shanghai-Pudong via Seoul-Incheon on June 25, operating twice per week. From July and beyond, it will operate once-weekly flights from Seattle and Detroit, also via Incheon.