On March 18, 2020 Amtrak temporarily suspended all "Keystone Service" trains due to declining demand because of the ongoing COVID-19 pandemic. Service between Philadelphia and Harrisburg resumed on June 1, 2020, with all-reserved seating. On January 4, 2021, Amtrak reduced service levels along the "Keystone Service" due to decreased ridership caused by the COVID-19 pandemic. With the reduction in service, the "Keystone Service" will offer seven roundtrips on weekdays and six roundtrips on weekends between Harrisburg and Philadelphia, with three daily roundtrips running the full route between Harrisburg and New York City.