The airline is now operating three chartered return services each week to Southampton.
However, in line with new travel restrictions, only passengers with a government-approved reason – such as those travelling for medical purposes – will be able to book a seat, at a cost of £100.
The government is paying Blue Islands £15,000 a week to ensure the services remain running.
Economic Development Minister Lyndon Farnham said it was currently commercially unviable for any airline to continue flying to and from Jersey but said it was essential that lifeline flights continued.
‘For a small number of people, travel will be absolutely essential, and this agreement is already making a positive difference to Island life,’ he said.
‘We have already supported more than 75 Islanders, who were stranded overseas, to return home on government-chartered flights which have also been used to transport essential medical supplies and construction workers vital for building Jersey’s new Nightingale Hospital.’
He added: ‘All travellers should be prepared to provide proof of justification for essential travel. Passengers who do not meet the essential travel criteria will be denied travel.’
All other airlines, Condor Ferries and Manche-Iles Express have suspended their passenger services.
Instructions on how to book the Blue Islands flights and details of who is allowed to travel are available at blueislands.com/travel. All those travelling must complete a health declaration and passenger information form.
Meanwhile, restrictions have also been placed on private modes of travel outside of Jersey, such as private aircraft and boats. Anyone wishing to travel in or out of Jersey through non-commercial means must first obtain authorisation from the Jersey Customs and Immigration Service by emailing firstname.lastname@example.org.