Dallas International is regionally accredited by the Independent Schools Association of the Southwest (ISAS).
In 2016, DIS was ranked by the Washington Post as #24 in the nation for "America's Most Challenging High Schools.
In high school, a student may stay in the French language track leading to the French Baccalaureate Diploma, or may enter the English language track leading to the International Baccalaureate (IB) Diploma.
[6] Beginning in the 2025-26 school year, DIS will be expanding its International Program from 5th to 12th grades, with core courses taught in English.
[8] Students in all three IB programs can pursue language acquisition in French, German, Mandarin, and Spanish.