The nearest airport to travel to Annecy is in Geneva but there are other airports with which it is possible to go to France like Lyon for exemple. You have to take a bus from Geneva to Annecy that cost around 10€.
There are direct flights to Geneva operated by Air France, KLM, Easyjet, Ryanair, Eurowings, Transavia, Aer Lingus, Volotea, Norwegian/SAS, Hop !, Air Arabia and many daily connecting flights to and from Paris Roissy-CDG and Orly airports.
Otherwise you can fly into Lyon airport (148km) and request a transfer from there (prices available on request).
If you take the train you should arrive at Annecy station which is right in the center of Annecy. There are fast TGV trains from Paris-Gare de Lyon (around 3H40) or Roissy-CDG airport (around 4 hours).
Eurolines, Ibéribus, Flixbus and Ouibus also operate low-cost coach services to Annecy from many European cities.
So, now you’ve read this newsletter you will have no excuse not to travel to Annecy!