Originally Posted by brunos

Are there French airports with scheduled flights which are not "international".?
Many of the smaller airports (e.g. Bergerac) mostly cater to foreign flights, especially from UK.
Then you pass immigration (if needed) as soon as you disembark, but the bag delivery is common area and bags are distinguished by the tag that Irishguy28 mentioned.
Note that even if you arrive from France a custom officier has the right to check you bag (that happened once to my wife in Nice).