From Jenbach city to Kaltenbach, Zillertal Arena, Mayrhofen, Hintertux.

• Price from 10€:

Free, if you have skipass. If no, from 10 Euro for 1 trip

• Timetable:

City buses, goes all year round
Also here
Ski buses. Goes only in winter

Tickets:
You can buy in bus.

From Munich / Innsbruck to
Kaltenbach, Zillertal Arena, Mayrhofen, Hintertux by train

• Price from 50-100€:

Approximate price from Munich Airport to Zillertal Valley is from 50-100 Euro for 1 trip.
Free train inside Zillertal Valley goes from Jenbach to Mayrhofen, if you have skipass.

• Tickets and timetable:

Buy tickets and timetable here
Also here
Train map here - for Germany, Belgium, Switzerland, France, Italy, Slovenia, Croatia.
From these countries you can come to Janbach train station. Then goes by Zillertal Valley train >

Buy tickets here.
Choose From Jenbach or München Flughafen or whatever you need from, to Kaltenbach-Stumm im Zillertal / Zell am Ziller / Mayrhofen im Zillertal

Timetable here (pdf file)

Also, it could be found here in section Zillertalbahn

From Munich / Innsbruck
to Kaltenbach, Zillertal Arena, Mayrhofen, Hintertux by taxi

• Price from 450€:

Taxi will be a good choice if you come with company 2+ people.

Approximate price from Munich Airport to Zillertal Valley is from 450 Euro for 1 trip

Mobile apps which better suits for Tirol, Austria region:
TaxiApp Austria
My Zillertal app
Links to download MyZillertalApp

Call or book on web-site to get taxi:
Zillertal Taxi
Kroell taxi

Here in section Regiotaxis

From Munich / Innsbruck
to Kaltenbach, Zillertal Arena, Mayrhofen, Hintertux by rented car

• Price from 300€ for 5 days

You can rent car for 5-7 days to use all time you're here.

Don't forget:

• car must be on winter tiers (!!!)
• Insurance. If you're coming from Munich Airport, or other countries, your CAR Insurance must cover all European countries.
• All this you can add as "Extras"

Rental aggregator services:

• RentalCars
• Kayak
• EconomyBookings
• Expedia
• Priceline