Travelsphere and Just You have relaunched a guaranteed departures initiative.
The sister operators say more than 80% of holidays on sale are guaranteed to depart.
More will be guaranteed each week and viewable on the Travelsphere and Just You websites.
Alastair Campbell, managing director of parent company G Touring, said: “It’s more critical than ever that we do everything we can to rebuild customer confidence and encourage bookings.
“Customers are now seeking surety that their long awaited holiday will actually happen.
“Our amazingly supportive agents have also been staggeringly understanding of the necessity to amend and reschedule holidays due primarily to aviation and supplier amendments.
“Now though we need to kick-on and ensure we get customers travelling again, sharing their amazing experiences and encouraging the great British traveller to get booked and go.
“Our guaranteed departures gives confidence once again to both customers and our trade partners that the holiday will go ahead.”
Travelsphere customers can choose from more than 60 holidays with 120 departure dates this year, with Just You offering guaranteed departures on 86% of 2022 departure dates.