It’s getting cheaper and more comfortable to travel by bus around France and Europe.
Isilines is a new coach service by Eurolines offering very cheap fares on bus routes that aren’t already covered by Eurolines, and in many cases allowing you to travel between small French towns without having to be routed through big cities like Paris, Lyon, or Marseille which is usually the case when taking the train).
The rates for one-way tickets fluctuate depending on the dates, but with their chart it’s easy to see when the cheapest fares are available. Just a quick glance I found the following fares: Paris to Lille €5, Paris to Bordeaux €14, Paris to Aix-en-Provence €18.
Superior Comfort and Amenities
All busses have free WiFi, electric and USB outlets, personal fold-down table, a/c and light control (like in an airplane), no charge for bags, and huge comfy seats that recline. All stations are in city centers, so no more airport shuttles, and buses actually go slow enough to enjoy the views of the French countryside (ever try taking a photo from the window of a TGV zipping through sunflower fields at 275km/h?) If you've got the time, it can be a great way to travel, see the countryside, and avoid the busy airports and train stations.
Isilines only covers France (they’ll be adding more stations through 2016). You can also check out the European-wide routes offered by Eurolines and the the SNCF-operated OuiBus (formerly known as iDBus) wich has a 15 or 30-day pass covering 53 European cities.