Another argument for not doing Athens first is... that is no place to get over Jet lag! Huge bustling capital city, where you don't even know the alphabet or how to get around, and groggy-faced, you'll feel obliged to sightsee world-famous Landmarks, which will all pass in a blur. If go somewhere outside, with a view of the sea ... then you can ease into the delights of Greece.
OK, I can understand you don't want to jump off a plane, and do a long drive ... but how about just a short one, where you'd end up in a lovely room with balcony overlooking sea, and even a wee beach to take a quick dip before you collapse on a comfy bed? Here's the deal. Look at this map - https://tinyurl.com/zekuft9 -- (click & it gets huuuge -- use side-slides to navigate). It shows all of the Peloponnese and -- importantly for you -- the "Big Green Road" that leads from the airport bypassing Above Athens, then straight to That Promised Land. ...
But Wait! I promised just a short drive for weary Seattle-ites, and here it is! With the aid of one strong espresso, could you drive 43 miles on a modern divided highway, with no stops or turns needed?? If so. look on that map, and between Megara and Vineta right on the water -- is HOTEL COKKINO - https://www.cokkinishotel.com/en/ -- off the big road to the Old ROad by the sea, and presto! this divine resting place. Stunning view, a beach chair to fall into, food & drink at the wave of a hand, and blessed recovery begins. The next Morning you'll be refreshed and bright-eyed, to take the wheel for all the discoveries across the corinth canal.