Originally Posted by
travelswithmyself
Would that be the route I marked out in yellow? How would one tell the driver to take this route...
It's not exactly as you marked but rather the more 'local' road running north/south closer to the airport called King Kaeo Rd (although you're bound to screw up the pronunciation and confuse the driver because in Thai the sounds are more G than K).
This is one of those locales which will be easier having a printout/card from the hotel to show the driver barring any kind of Thai language ability.