FYI, ATL-ICN seems to have decent availability in August with Flying Bule for 45.5k one way and just $33 in taxes (this is something to watch out for with Flying Blue). And, in theory, the round trip rate is just 53k, but the website conks out when I try to get to step 2. I looked at ATL-TYO too, but didn't find any August dates where the nonstop was on offer.