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School comparison · Athens
Side-by-side comparison · Updated 2026-04-26 · Both schools in Athens
| Metric | International School of Athens | St. Catherine's British School |
|---|---|---|
| Curriculum | IB | IB, British |
| Qualifications | — | IGCSE and IB Diploma |
| Ages served | Ages 2 to 18 | Ages 3 to 18 |
| Language of instruction | English |
| English |
| Tuition USD | $8,700-$15,000 | $9,710-$16,500 |
|---|
| True annual cost? | $13,350 | $14,605 |
|---|
| Hidden fee %? | +13% | +11% |
|---|
| First-year cost? | $14,850 | $16,105 |
|---|
| WhereNext Value Score? | 72/100 | 67/100 |
|---|
| Cost percentile (city)? | 50th | 92th |
|---|
| Students | 660 | 1,275 |
|---|
| Nationalities | 60 | 50 |
|---|
| Avg class size | 13 | 22 |
|---|
| Admissions | Open | Open |
|---|
| Accreditations | IBO, MSA-CESS | IBO |
|---|
Highlighted cells indicate which school holds the more favourable value for arriving expat families on that dimension (e.g. lower tuition, smaller class size, higher Value Score, more open admissions). Some rows are neutral.
Full profile · International School of Athens
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Full profile · St. Catherine's British School
View the full St. Catherine's British School school profile →
Best value in Athens
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True annual cost in Athens
All schools ranked by total annual cost →
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