[Japan Domestic Flights] Q: What are the regulations for carry-on baggage? A: Please check the regulations for carry-on baggage on each airline's website.A list of airline websites can be found here Carry-on baggage is included in the ticket price for all airlines. Baggage that exceeds the carry-on baggage regulations must be checked in as checked baggage.For information on checked baggage, please see here Related articles SKYTICKET SERVICES - Airlines Website and Contact Information [Japan Domestic Flights]Regarding Checked Baggage [Japan Domestic Flights]How to Use [Japan Domestic Flights] Q: Can I select my seat? [Japan Domestic Flights]How to Select Seats for Skymark (SKY)