Saringkarn earned his first cap for the Thailand under-19 squad on 24 August 2015, starting in the 1–1 draw against Laos in 2015 AFF U-19 Youth Championship game.

He was part of the victorious under-19 side at the AFF U-19 Youth Championship in Laos under Anurak Srikerd.

Selected for the Thailand under-23 squad in the 2017 Southeast Asian Games by manager Worrawoot Srimaka, Saringkarn played all seven times for the champions.

In the M-150 Cup tournament he was called up by manager Zoran Janković and squad for the 2018 AFC U-23 Championship in China.

[3][4] In November 2024, Saringkarn earned a called up to the Thailand national team squad for a friendly match.