Customers will be offered the option to move their bookings free of charge or cancel and receive a full refund. Inghams has also extended its "no fee to change up to 28 days before departure" policy.
Joe Ponte, Inghams chief executive, said trips to Switzerland accounted for around 6% of the operator’s winter programme.
"Following the news that Switzerland has imposed a 10-day quarantine on all UK arrivals, we have sadly suspended all December 2021 departures to Switzerland," said Ponte. "Customers impacted by this news are being offered the option to move their booking free of charge or to cancel their booking with a full refund."
Ponte continued: "We are extremely disappointed for all our customers who were looking forward to a ski holiday in Switzerland in the coming month. Switzerland accounts for around 6% of the holidays in our winter programme, and booking numbers for the coming ski season have been strong."
He added the operator would continue to offer customers flexibility to put their minds at ease. “While many of our customers remain eager to return to the slopes, we understand that customers with later departure dates may be feeling apprehensive about their holiday following this latest update.
"With this in mind, we continue to offer flexibility via our ‘no fee to change up to 28 days before departure’ policy. Allowing our customers the option to move their holiday to a later date or different destination."