Originally Posted by
Panos17
I just noticed something very weird. The prices for IAD -> ATH -> IAD are about 50% more expensive than ATH -> IAD -> ATH. i.e. the whole date grid for the whole summer in google flights suddenly looks very different when you click on the "double arrow" button in the middle. How does this make sense?
IAD-ATH is probably directed at the US market. ATH-IAD is directed at the Greek market. Different markets, different prices.