How it works
International tickets are competition tickets
A club sells you a seat at its own ground; a national team mostly plays in someone else's competition. Nations League matchdays and World Cup qualifiers are ticketed by the home federation, tournament finals by the organiser — and resale inventory follows the same shape. That is why a country's page here lists matches from several competitions at once, and why availability arrives in waves around each international window rather than at a season's start.
Home internationals are usually the accessible entry point: national stadiums are large, and demand outside the biggest fixtures sits below a comparable club match. The hard tickets are tournament knockouts and the marquee qualifiers — for those, resale is often the only route once official ballots close.