How to reach Helsinki central from the airport? Can we store our luggage somewhere?

The fastest and easiest way to reach Helsinki central is by Train (in Finnish: Juna). 

You can take either the P train or I train to arrive in Helsinki.

The journey should take around 30 minutes.

And yes, it is possible to store your luggage if you arrive in the morning and spend the day in Helsinki.

Inside the Railway Station building's main hall, there are some rows of lockers that you could rent within 24 hours to store your luggage. 

For the storing price, please check here.