For the Classic Provence and Hidden Provence trips the best arrival point is Avignon. I pick up from there and take you to the hotel about one hour away (location shown with marker on map). This transfer is included in the Provence Hiking Week. for the return a taxi may be used at a cost of around 110€ divided between up to 4 people. 

For Gorgeous Provence fly to Nice and then take a short transfer to the meeting hotel. 

By Air

There are flights from the UK to Avignon airport but only in the summer.
The nearest other airports are Marseille, Nimes and Lyon.

By Train
The French railways provide a fast and efficient service and getting to Provence from the UK by train is straightforward.  Avignon is served by TGV train from the north and the south.

Possible options are
By Car
Driving out is not difficult, although it takes a full day from the UK, a journey you may wish to break en route. Also bear in mind that the French motorways are toll roads.
There is also convenient car rental at Avignon if you want to have a vehicle during your stay.