Hi Travelers!!
I will be traveling from the Mont Blanc area to Munich during the fall of 2010. Train or fly???

We fly into Munich and drive to visit family in the area - it's a "road trip thing".

If driving is out of the question, fly unless you don't mind multiple transfers and spending 8+ hours traveling on trains.

Enjoy your trip no matter how you go.

You may want to fly. The train will take 10+ hours according to SNCF.COM and will cost as much or more than the plane, which can be had for $199 on a Swissair mid-week flight from Geneva to Munich according to Kayak.com. Whether the pricing holds for next year is another question.

Geneva to Munich is a distance where fyling makes more sense than train. However there are good connections with only 1 change, so it's not a problem. The trip from Chamonix to Geneva is better done by the direct bus (www.gareroutiere.ch) which does not figure in the SNCF database.
For the train planning see www.sbb.ch - SNCF website isn't so great when it comes to trains outside of France.

For flight overview see www.ebookers.ch - "local" websites tend to have a wider range of offers than "foreign" sites like kayak.com

Altamiro is right about the 1 change train but that runs once per day and takes like 7+ hours - not counting the trip from Cham to Geneva. The rest of the trains are 8-10 hours with 3+ changes. And do use the sbb.ch site.