Aurigny's inaugural Guernsey to Paris Charles de Gaulle flight takes off this morning, 1 April.
The service will run twice weekly, on Mondays and Fridays.
Aurigny says it will take around 70 minutes to fly between Guernsey and the French capital's international hub airport.
While many people will be using the service to holiday in Paris, it will enable others to use Charles de Gaulle to take an international connection.
Aurigny says bookings are good for the month of April, and beyond.
The route has backing from the Economic Development Committee as it opens up a new, regular air route into Europe. That backing will extend to a subsidy worth nearly £1M over a period of three years, but this will only be paid if the route doesn't hit its financial targets.
Volunteers celebrate 20 years of restoring Guernsey WW2 bunkers
Aurigny raises concerns over impact of BA’s Guernsey–Heathrow flights
Channel Island musicians record Christmas song at Abbey Road
BA to operate Heathrow-Guernsey flights
13 cubic metres of invasive plant removed from Alderney beach
Guernsey's Lieutenant-General receives knighthood
Donations flood in to save Sark-born border collie with rare condition
Aurigny extends flight schedule up until early January
