There are several ways.
If you’ve got the time, the leisurely, romantic way is to fly to Rome, get trains through Italy all the way down the boot to Brindisi, and from there get ferries to Chania, Crete. You’ll feel so rested when you get there!
But there are faster ways:
Aegean Airlines flies from Athens to Chania daily. They also fly from various other European destinations, depending on where you are coming from. Check Aegean Airlines website
You can take a ferry from Athens (Piraeus) to Chania. They are usually overnight and you have the option of a cabin or on deck. Best to book early. Here is the link;
Once you have made arrangements please let Judy know so that you can be met on arrival at the ferry wharf.