Just booked SEA-DOH-ATH rt for a week around Memorial Day, $2033 all in. Interestingly, I selected a "classic" fare that indicated seat selection wouldn't be available until check-in, but it let me pick seats in the "add-ons" screen for no charge. Here's hoping they figure out how to let vaccinated pax visit without quarantine by then. A fully refundable ticket sure is nice in uncertain times.