my family will be visiting me in Japan soon and we plan to make a trip to South Korea too. So they would be coming from France to Japan, then from Japan to Korea, then Korea to Japan and from Japan back to France.
So we would like to take a ticket from Osaka (Japan) to Seoul (Korea) then from Seoul to Tokyo (Japan). The problem is that when booking a flight from Osaka to Seoul, some companies ask that a return ticket is taken or we might be denied access to the flight. Although these companies do no block you from buying a one way ticket.
Is it okay to book a one way ticket from Osaka to Seoul then another one way ticket from Seoul to Tokyo on another company ? Or do they need the return trip to be on same ticket ?
Also, from what I get, you don't need to get a visa if you stay less than 90 days in Japan and Korea. But is there going to be a visa problem with leaving Japan to Korea and coming back soon after ?
Thanks for your answers.