Cheapest travel options from Frankfurt to Munich

so this is an apology to those who I didn't say goodbye to and also a plea for help... first off, I will be in touch with people in the next couple of days to explain my quick departure and lack of time before I left. I miss everyone so much! k... second, my friend from canada has to go to munich for a funeral and flies into frankfurt... I need people to help me find the cheapest possible way she can travel from frankfurt to munich tomorrow afternoon. She arrives at 11:50 at the airport... k ready set go... the prize is a surprise, I appreciate everyones help!

What's the date of the return leg? What time of the day?

Just a one way... anytime after 11:50, lets say 1

CHEAPEST is Schönes Wochende Ticket.
Frankfurt Hbf to Munich with one change in Nürnburg.

www.bahn.de

Flying LH single Frankfurt-Munich would cost her 293.47 €.

If I understand your post correctly, it sounds like you're asking what the cheapest method to travel between Frankfurt Airport and Munich Hbf tomorrow afternoon is. The answer is the train. This costs €75 with ICE (about 4 hours), €63 with IC (4.5 hours if she takes the right connection) or €30 with the Schönes Wochenende Ticket already mentioned by MT (7 hours).

http://www.mitfahrgelegenheit.de/ will probably only cost 20 if someone's driving the route at the time you need.