BERLIN: Lufthansa is adding more holiday destinations to its summer flight schedule from Germany in anticipation of a strong rebound in bookings, it said on Thursday, betting COVID-19 vaccines and testing will soon make vacation travel possible.

Germany's largest airline said it was planning to add around 20 new destinations from Frankfurt and 13 from Munich to locations such as the Caribbean, the Canary Islands and Greece.

COVID-19 vaccines and testing, along with strict hygiene rules at airports and on planes, will be prerequisites for travel this summer, it said.

"We expect many countries to relax travel restrictions towards the summer as more and more people have been vaccinated," Lufthansa board member Harry Hohmeister said in a statement.

Hohmeister said the airline, which secured a 9 billion euro ($11 billion) state bailout last year, expects a sharp increase in demand once restrictions are lifted.

Concerned about more transmissible coronavirus mutations, many European Union countries have reinstated border controls in what is normally a passport-free travel zone.

"There is a great yearning for travel and we believe that the summer months will reflect this," Hohmeister added.

In Britain, holiday bookings soared this week after the government laid out plans to gradually relax coronavirus restrictions, giving battered airlines and tour operators hope that a bumper summer could come to their rescue.

Plans for relaxing coronavirus travel restrictions have not been announced yet in Germany. Chancellor Angela Merkel is due to discuss lockdown options with the head of the regional governments next Wednesday.

Lufthansa, which said in January it was losing a million euros every two hours, is due to publish its fourth quarter results on March 4.