Can I go to Japan without a return flight?
Can I go to Japan without a return flight? You must have a valid passport and an onward/return ticket for tourist/business visa free stays of up to 90 days. Your passport must be valid for the entire time you are staying in Japan.
Do I need a return ticket for visa?
Should I Buy a Return Air Ticket Before Applying for a Visa? No, buying a return air ticket is not recommended before applying for a visa. Because if your visa gets denied, you will lose your money. We recommend getting a flight itinerary, and once your visa is granted, you can purchase a real travel flight ticket.
Do I need a visa for Japan?
You must have a valid passport and an onward/return ticket for tourist/business visa free stays of up to 90 days. Your passport must be valid for the entire time you are staying in Japan. You cannot work on a 90-day visa free entry.
Do I need a return flight to enter Korea?
You will need some form of onward ticket. Korean immigration doesn't even enter into it: Without the ticket the airline will not even let you board the flight to Korea. The Airline will check the TIMATIC system mentioned in the other answer, and make sure you have all the necessary documentation.