By far the best way to get here at the moment depending on where you live is via Marseille Airport with its specialised budget airline terminal known as MP2.

This hub now caters well for multiple European destinations as well as all the principle intercontinental hubs.

Marseilles has the advantage of only being about 1hr.15mins from us by road

The currant destinations supported directly from this airport are shown on MP2 own site shown here.
http://www.mp2.aeroport.fr/index.php?page=vols_directs

Easyjet (Linked car hire Europcar)
Easyjet now has a permanent hub at Marseille airport MP2 and offers a great series of flights in.

http://www.easyjet.com/en/book/index.asp

British Airways

http://www.britishairways.com/travel/globalgateway.jsp/global/public/en_

Ryan Air (Linked car hire Hertz)

Ryan Air now has a permanent hub at Marseille airport MP2 and offers a great series of flights in.

http://www.ryanair.ie/

Please note you could be adventurous and have a two centre holiday in different locations using MP2 as your cross over point i.e. Provence with us for a week and then on to Moroco for the next week retuning via MP2 to home.

Other near Airports:

If you can not get a flight direct to Marseille; try Nice or Nimes, or try one through London as it is a major hub to the rest of Europe.

You can then pick up a good rental at say Budget, Europcar or Hertz and be here within 2.30 hrs approx. (from Nimes or Nice) rather than spending 3 - 4 times the time coming down from Paris.

Road and Rail
My research has shown that if you are coming from another continent or country outside mainland Europe i.e. the US or the UK you would be better off using a company like Easyjet, British Airways or Ryan Air hiring a car through say Europcar or Hertz ( you can get a good discounts) and then driving up from Marseilles.

When I did a cost comparison driving from London to here for a family of 4 if you take all the costs including ware and tear on your vehicle the costs come out about the same.

The advantage is that you can gain 2 extra days of relaxation and the low cost airlines are getting cheaper all the time.If you live on the continental mainland of Europe, a car drive is financially better but there are so many new budget carriers that this changes very quickly. Also if you are coming for say only a week then why get tired on a long car journey? After all you are going on holiday!

In France between the 15th of July and the 15th of August is the French national summer holidays. These two periods are split roughly 50/50 into two weekly periods, therefore the first weekend near the 15th of July, the nearest weekend in the middle two weeks latter and the weekend nearest to the 15th August are signaled as RED heavy traffic. The first weekend going South, the second North and South and the third weekend going North.