Choosing an international school in Bangkok is one of the bigger decisions any relocating family will make. Thailand's capital hosts more than 120 international schools, served by every major curriculum and price band from value to ultra-premium. Sukhumvit, Sathorn, Ekkamai and the riverside neighbourhoods each have their own school clusters and family character. This 2026 family guide explains how to filter Bangkok's options, what to expect in fees, and how to spot the schools that will fit your child best.
Why Bangkok works for international families
Bangkok's appeal is the same combination that has drawn expats for decades: a low cost of living relative to other Asian capitals, world-class healthcare, a hub airport, and a deeply child-friendly culture. Add the post-pandemic boom in remote-work families, the digital nomad visa and the city's surge of new IB Diploma schools, and the international school market has never been more competitive — or higher quality.
Curricula available in Bangkok
- British (English National Curriculum, IGCSE, A Level) — the dominant segment, with Harrow, Shrewsbury, Brighton College and many mid-market schools.
- American (US diploma, AP) — strong at ISB Nichada, Singapore International School and a handful of newer entrants.
- International Baccalaureate (PYP, MYP, DP) — NIST, KIS and ISB lead the IB segment.
- Bilingual Thai-English — Wells, Bangkok Christian and several other long-established schools.
- French, German, Japanese — national-system schools serving compatriot families.
Top international schools to shortlist
International School Bangkok (ISB)
The classic American-IB school for Nichada Thani. ISB delivers AP, IB Diploma and a US diploma with strong sports and arts. Most multinational packages name ISB by default. See ISB on ISA.
NIST International School
Bangkok's only full IB Continuum (PYP, MYP, DP) and one of the most academically rigorous schools in Asia. Located in the heart of Sukhumvit, just off the BTS Asoke. View NIST on ISA.
St. Andrews International School
Multiple campuses (Sathorn, Sukhumvit 71, Green Valley) delivering the English National Curriculum with IB Diploma at sixth form. Strong inclusion programmes. Read St. Andrews on ISA.
KIS International School Reignwood Park
The newest premium IB school in Bangkok, set on a 130-rai campus near Bang Bua Thong. Full PYP, MYP and DP with a focus on outdoor learning. Explore KIS Reignwood Park.
Garden International School
British-curriculum school in Sukhumvit with strong primary care and IGCSE/A Level outcomes. View Garden International on ISA.
Neighbourhoods to know
- Sukhumvit (Phrom Phong, Thonglor, Ekkamai) — high concentration of expat families, easy BTS access, premium condos. NIST, Bangkok Prep, KIS Wat Don.
- Sathorn / Silom — central business district, suited to working parents and embassy families. St. Andrews Sathorn.
- Nichada Thani (Pakkret) — gated community, school-bus convenience, ideal for ISB families.
- Riverside (Charoennakorn) — Shrewsbury riverside campus, premium feel, longer commute.
- Outer ring (Bang Na, Bang Bua Thong) — newer campuses with green space (KIS Reignwood, Concordian).
Bangkok school fees in 2026
- Premium tier: THB 800,000–1,150,000 per year (Harrow, Shrewsbury, NIST, ISB).
- Upper-mid tier: THB 550,000–800,000 (St. Andrews, KIS, Brighton College).
- Mid-market: THB 350,000–550,000 (Garden International, Anglo Singapore, Bromsgrove).
- Value international: THB 200,000–350,000 (Heathfield, ELC, smaller bilingual options).
Add a one-off application fee (THB 4,500–8,000), enrolment fee (THB 80,000–200,000) and 8–12% extras for transport, lunch, uniforms and trips. Most schools allow termly instalments with a small surcharge.
Accreditation: the WASC and CIS check
Top Bangkok schools are accredited by CIS (Council of International Schools), WASC (US Western Association of Schools and Colleges) or both. This matters for two reasons: it guarantees a recognised graduation pathway, and it signals consistent inspection and pastoral standards. Always confirm the accreditation logo and certificate during your school tour.
How to actually choose
- Define your university horizon. AP/SAT-bound students benefit from ISB; IB-bound from NIST or KIS; UK-bound from Shrewsbury, Harrow or Brighton.
- Stress-test the commute. Drive the route at 7:30am on a weekday. Anything beyond 45 minutes erodes family life.
- Check teacher turnover. Ask schools for their three-year retention rate; under 75% can signal management issues.
- Tour with your child. A 90-minute classroom rotation reveals whether the school's pace matches your child's temperament.
- Read the last CIS or WASC report if available — these spell out strengths and growth areas with unusual honesty.
Admissions timeline for August 2026
- August–October 2025: open day visits and tours.
- October–January 2026: applications and assessments.
- February–March 2026: offers and acceptance deposits.
- April–June 2026: visa processing, transfer certificate from current school, vaccination records.
- August 2026: orientation and uniform collection.
Where to compare every school
Browse ISA's ranking of the best international schools in Bangkok for verified profiles, parent reviews and fee data, filtered by curriculum, neighbourhood and budget.
Frequently asked questions
When should I start the Bangkok school application process?
For premium schools, apply 10–14 months before your intended start date. Mid-market schools accept applications 4–8 months ahead and value schools often admit students within 1–3 months.
Do Bangkok international schools require Thai language?
Foreign-system schools do not require Thai for admission but offer Thai as a Modern Foreign Language from Year 1. Most schools provide an ELL/EAL pathway for students whose first language is not English.
How much should I budget for the first year at a Bangkok international school?
Premium schools require a first-year cash flow of THB 950,000–1,400,000 once enrolment fees, deposits, uniforms and transport are included. Mid-market schools fall in the THB 450,000–700,000 range.