Easiest way to travel from Meteora to Delphi

You'll likely want to drive it in a rental car. It's about 150 miles, but much of it is two-lane, and part of it is over hills. Figure 3.5-4 hours. If you have time, start your trip by going up the road from Delphi a few miles to Arachova (the "Athens of Greece," or "Greece's Winter Mykanos"), stroll the town, and then take a backroad over the Parnassos Mountains and rejoin E65 at Gravia. There's a fun bakery in the village of Eptalofos.