Boats have been chartered between Guernsey and Alderney with morning and afternoon sailings.
Pictured: Passengers on the cancelled flights who were going between Alderney and Guernsey are being offered a boat service instead.
In addition, an extra ATR air service will operate between Southampton and Guernsey this afternoon to enable UK passengers to connect from the inter-island boat service.
The airline is contacting passengers directly with their alternative arrangements and will update customers on future services when further information is available.