Choosing an international school in Bangkok shapes everything else about a family relocation to Thailand: where you live, your daily commute through the traffic, your child's friends, and the credentials they leave with. The city has more than ninety international schools spanning British, American, IB, Thai bilingual and Australian programmes, with annual fees from around 350,000 THB at smaller schools to over a million THB at the most established campuses. This 2026 guide walks you through the curricula on offer, five top international schools recognised on ISA, realistic fee ranges, and the practical questions families should ask before sending applications.
International school curricula in Bangkok
Bangkok is one of the densest international school markets in Asia, and that depth means parents can usually find a curriculum that matches their child's previous schooling and future university goals.
- British (IGCSE / A Level): The most common track in the city, anchored by long-established schools and a wave of newer UK boarding-school satellites.
- International Baccalaureate (PYP, MYP, DP): Strong in IB-only schools and several British or American schools that run dual pathways.
- American (Advanced Placement, US Diploma): A smaller footprint than British but still well represented through traditional American schools.
- Bilingual Thai-English programmes: A useful option for mixed Thai-foreign families and for children planning to remain long-term in Thailand.
Top international schools in Bangkok recognised on ISA
Bangkok Patana School
The oldest British international school in the city, Bangkok Patana follows the National Curriculum for England leading to IGCSE and the IB Diploma in Years 12 to 13. It is known for its expansive Bangna campus, a deep co-curricular programme, and consistently strong IB results that send graduates to UK Russell Group, Ivy League and top Australian universities.
View Bangkok Patana School profile on ISA
NIST International School
NIST is one of the few full-IB schools in the city, offering the PYP, MYP and Diploma Programme on its central Sukhumvit campus. Its non-profit foundation and small-class culture appeal to families looking for an inquiry-led approach with global mobility built in.
View NIST International School profile on ISA
International School Bangkok (ISB)
Founded in 1951 and located in Nichada Thani, ISB is the most established American-curriculum school in the city, offering an American High School Diploma, the IB Diploma and Advanced Placement options. The leafy campus is a draw for diplomatic and corporate families on long postings.
View International School Bangkok on ISA
Harrow International School Bangkok
An offshoot of London's Harrow School, this campus delivers the English National Curriculum through to A Level, with optional flexi-boarding for older students. Strong in academics, music and sport, it is a natural fit for families considering Russell Group and US Ivy universities.
View Harrow International School Bangkok on ISA
Shrewsbury International School Bangkok City Campus
Set on the Chao Phraya river, Shrewsbury offers a full British education from EYFS through A Level. The City Campus is purpose-built for younger years and complements the older Riverside Campus, making it useful for families with children at different stages.
View Shrewsbury International School Bangkok on ISA
How much do international schools in Bangkok cost in 2026?
Tuition is published in Thai baht (THB) and rises every year. As a benchmark for the 2025 to 2026 academic year:
- Early years and primary: 350,000 to 750,000 THB
- Secondary (Years 7 to 11 / Grades 6 to 10): 600,000 to 950,000 THB
- Sixth form / Grade 11 to 12: 750,000 to 1,150,000 THB
Add a one-off application and assessment fee of 5,000 to 25,000 THB and a refundable deposit of one term's tuition. Most British and American schools also charge a non-refundable enrolment fee in the 100,000 to 250,000 THB range, plus optional bus, lunch and uniform charges.
Location, traffic and the school commute
Bangkok's traffic is the single most underestimated factor for new families. International schools cluster in three main corridors: the Sukhumvit / Bangna axis (NIST, Harrow, Bangkok Patana, Bangkok Prep), the riverside and central west (Shrewsbury City Campus, KIS), and the northern Nichada Thani area near Pakkret (ISB). Aim to live within thirty minutes of the school gate, or factor in the school's bus network, which usually adds 30,000 to 60,000 THB per year.
Admissions calendar at a glance
Most international schools in Bangkok follow an August-to-June academic year. Open houses run from October to January, with main intake decisions in February and March. Mid-year entry is common at non-flagship schools but rare at the most oversubscribed campuses. Plan for an English assessment for any child entering Year 3 / Grade 2 and above, plus school reports from the past two years and a passport copy at the application stage.
Compare more Bangkok schools
Browse the full curated list of top international schools in Bangkok on ISA, with side-by-side comparison of curriculum, fees and parent reviews.
Frequently asked questions
What is the average cost of an international school in Bangkok?
Average annual tuition at an established international school in Bangkok ranges from 600,000 to 950,000 THB for secondary years, with elite British and American schools reaching 1,150,000 THB at A Level or Grade 12. Add enrolment, capital and bus fees on top.
Are there waiting lists for top schools in Bangkok?
Yes. Bangkok Patana, NIST, ISB and Harrow all run waiting lists in popular year groups, especially Years 1 to 3 and Year 7. Apply twelve to eighteen months before your target start date if you are aiming at any of these flagships.
Do international schools in Bangkok teach Thai language?
All licensed international schools include Thai language and Thai culture as a Ministry of Education requirement. Programmes vary from full daily Thai lessons for Thai nationals to lighter Thai-for-foreigners tracks for short-stay families.