American Airlines plans to cut off most of its service from US airports to London next month due to weak epidemic demand, the carrier said on Sunday.

Cases of coronavirus have increased in both countries and authorities have imposed new sanctions to help prevent the spread of the virus, keeping in mind the demand on the most profitable and popular international route due to the epidemic.

The carrier will arrive next month in Charlotte, New York. Kennedy International Airport and will not operate flights from Chicago Ohre to London Heathrow. Customers in Chicago and New York can optionally book on American Airways, America’s trans-Atlantic partner. American will continue Only operate cargo-flights From Chicago and New York and London, “daily passenger service resumes in January,” a spokesman said in a statement.

“We are constantly evaluating our network to match supply and demand and have been making regular schedule adjustments since March,” the spokesperson said. “In an effort to meet the low demand for coronavirus (COVID-19), we continue to operate on a reduced schedule.”

Delta and United did not immediately respond to a request for comment on their plans.

Airlines, including American and British Airways, are urging officials on both sides of the Atlantic to change travel restrictions, such as barring most Europeans from entering the UK and the protection requirements for Americans entering the UK, through the Covid-19 test.