International School of Athens
International School in Athens
Quick answer
International School of Athens (ISA) serves 660 students from 60 nationalities aged 2 to 18. The school is an IB Continuum World School delivering PYP, MYP and the IB Diploma, accredited by IBO and MSA-CESS. Tuition $8,700-$15,000 per year — strong value for a multi-accredited IB school in Greece. Strong fit for diplomatic, shipping and corporate expat families on Athens assignments seeking IB-track education with high international diversity.
Key facts
- Curriculum: IB taught at International School of Athens.
- Tuition: $8,700–$15,000/yr published in EUR, US$ equivalent.
- Avg class size: 13 (max 15) Athens international school · 660 students total.
- 60 nationalities top: American.
- Ages: Ages 2 to 18 school day starts at 8:20am.
- Accreditations: IBO, MSA-CESS verified.
660
60 (American)
13 avg / 15 max
Rolling
IBO, MSA-CESS
About International School of Athens
ISA is the only IB World School in Athens, offering all three IB Programmes (PYP, MYP, IBDP) in English. ISA offers an academically challenging, socially engaged and culturally rich education.
| Item | Amount |
|---|---|
| Annual tuition (USD) | $8,700 – $15,000 |
| Annual tuition (EUR) | 8700-15000 |
| Fee year | 2025-2026 |
| True annual cost (with hidden fees)how we calculate | $13,350(+13%) |
| First-year total (with registration + deposit) | $14,850 |
| Cost position in Athens | 50th percentile(mid-range) |
IB
IB Diploma
Highest IB Diploma points awarded to a candidate in 2025 was 43. The class average for 2025 was 34
Greek, French, Spanish, German, Arabic, Chinese
The Learning Center involves a team of special educators, educational psychologists, and counseling psychologists who work together with mainstream teachers and administrators in order to support the social and academic growth of students with learning differences. The program serves a culturally and linguistically diverse population with students that have been diagnosed with learning differences.
Learning Support Center
English Language Support (ELS)
8:20am – 3:30pm
Yes, as an additional service
Is International School of Athens right for your family?
A School Fit Brief scores this school against your children's ages, learning needs, and budget — with hidden fee analysis, admissions timing, and a ranked shortlist of alternatives in Athens.
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At a Glance
Fee Position in Athens
Mid-rangeSchool Profile
Class Size
Student Diversity
Very diverse
Common: American
Estimated Real Cost
Tuition + registration, transport, uniform, exams
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Nearby Schools (within 5km)
Disclaimer: School profiles are source-backed decision aids, not endorsements or official rankings. Tuition figures are approximate and may not include registration fees, uniforms, transport, or exam costs. Always verify directly with the school before applying. WhereNext is not affiliated with any school listed. This is not admissions consulting, legal advice, or official school placement guidance.