Bangkok has Thailand's largest and most prestigious international-school cluster — British, IB and American, several world-ranked. Fees run from about ฿240,000 to over ฿1.2M a year. Here's the honest map: who's who, where they are, what they cost, and the extras nobody quotes up front.
Annual tuition only, 2025/26; fees rise steeply from early years (the low figure) to senior/IB years. Confirm current figures on each school's own fee page before deciding.
| School | Area | Curriculum | Ages | Annual fee |
|---|---|---|---|---|
| NIST International School | Sukhumvit (Asok) | IB | 3–18 | ฿630k–1.09M |
| Bangkok Patana | Bang Na | British → IB | 2–18 | ฿495k–975k |
| International School Bangkok (ISB) | Nichada, Pakkret | American + IB | 3–18 | ฿640k–1.16M |
| Shrewsbury (Riverside) | Rama III | British | 3–18 | ฿692k–1.21M |
| Harrow International | Don Mueang | British; boarding | 2–18 | ฿553k–1.04M |
| Regent's International | Rama 9 | British + IB | 2–18 | ฿431k–760k |
| KIS International | Huai Khwang | IB | 3–18 | ฿440k–945k |
| St Andrews (Sukhumvit) | Sukhumvit 71/107 | British | 2–18 | ฿401k–849k |
| Bromsgrove International | Min Buri | British | 2–18 | ฿361k–744k |
| Wells International | On Nut & Bang Na | American/British | 2–18 | ฿239k–522k |
| Concordian International | Bangna-Trad | IB (trilingual) | 3–18 | ฿626k–963k |
| Ruamrudee (RIS) | Min Buri | American + IB | 3–18 | ฿538k–786k |
| Brighton College Bangkok | Vibhavadi | British | 2–18 | ฿590k–1.02M |
NIST, Patana, ISB, Shrewsbury and Harrow are the flagship/most-prestigious; Harrow is the main boarding option. Several schools already publish 2026/27 fees — verify for the upcoming intake.
Budget for these per child on top of tuition: an application fee (฿4,000–6,500), a one-off registration / admission fee (฿75,000–260,000, often non-refundable — ISB and Harrow at the top), a refundable deposit / capital fund at the premium schools (฿150,000–575,000, refundable on departure), the school bus (varies by route, often ฿40,000–90,000+/yr), meals (sometimes included), and exam fees (IGCSE/IB). Sibling discounts of 5–15% are common. For two children at a top school, all-in cost commonly runs ฿1.2M–2.4M+ per year — model it on the Bangkok planner.
Three corridors. Sukhumvit (NIST, St Andrews) suits live-near-work families. The Bang Na / south-east corridor (Bangkok Patana, Concordian, Wells) has the big purpose-built campuses and family housing. The north — Nichada Thani near ISB, and Harrow at Don Mueang — trades a commute for space and community. Pick housing near the chosen school; see the neighbourhoods guide.
Bangkok's top schools are competitive and popular year-groups fill ahead of the year. Contact admissions directly for live availability, and budget the full all-in cost (enrolment, deposit, bus, meals) before you commit — school fees usually dwarf every other line in a family budget.
Annual tuition ranges from about THB 240,000 at the budget end (Wells) to over THB 1.2M at flagships like Shrewsbury, ISB and NIST in senior/IB years. Most mid-tier schools sit around THB 400,000–760,000. On top, budget for registration (THB 75,000–260,000), a refundable deposit, bus and meals — two children at a top school is often THB 1.2M–2.4M+ per year.
NIST (full IB), Bangkok Patana (British→IB), ISB (American+IB), Shrewsbury (British) and Harrow (British, with boarding) are the flagships, several world-ranked. Regent's, KIS, St Andrews, Bromsgrove, Concordian and Ruamrudee are strong established options across IB, British and American curricula.
Along three corridors: central Sukhumvit (NIST, St Andrews) for live-near-work families; the Bang Na / south-east corridor (Patana, Concordian, Wells) for the big campuses; and the north (Nichada Thani near ISB, Harrow at Don Mueang) for space. Families generally rent near their chosen school.
Yes. NIST, KIS and Concordian run the full IB continuum, and Patana, ISB, Regent's and Ruamrudee offer the IB Diploma. Harrow International is the main boarding option in the city.