[2][3] Widely regarded for his skillful display and good vision, Al-Ammar is praised to be one of the next top best Saudi football talents.

[12] However, despite skillful performance of Al-Ammar in the 2018 U-19 Asian Cup, his performance in the 2019 FIFA U-20 World Cup held in Poland was a complete disappointment, with he silenced himself in many important moments as Saudi Arabia, the champions of Asia, exited from the group stage in a complete humiliation with three straight defeats, the first time since 1985.

His impressive performance at the 2018 U-19 Asian Cup allowed him to occupy a spot in the Saudi squad, as he was first called up to the main team by then-manager Juan Antonio Pizzi for the friendlies against Yemen, Jordan and South Korea.

Turki Al-Ammar finally made his debut for the senior team in the friendly against Paraguay at home, came on as substitute for Yahya Al-Shehri at the second half, where they drew goalless.

[15] He was also included to the final squad of the 24th Arabian Gulf Cup under coach Hervé Renard, but after the disastrous 1–3 loss to Kuwait, he is not used.