How to Choose the Right International School in Bangkok: A 2026 Parent's Roadmap

My kids are 16 and 14 now, and between the two of them my family has spent about 8 years navigating international schools here in Bangkok. I have sat through the tours, compared the fee schedules, and made the mistake of picking a school before I really understood the commute. This is the framework I put together based on what I actually learned, not just what the brochures say.

Which curriculum should you choose?

Curriculum is usually the first thing to sort out. British schools follow the National Curriculum for England through IGCSE and A Levels. American schools lead to a US high school diploma, often with AP courses layered in during the later years. IB schools offer some or all of the Primary Years, Middle Years, and Diploma Programmes, which is a big draw for families who move around a lot since the IB transfers cleanly between countries. One thing I'd tell any parent starting this search: check whether a school calling itself an IB school actually teaches the full continuum, or only the Diploma Programme in the last two years. The experience for a 6 year old is completely different depending on which it is.

British curriculum: Bangkok Patana and Shrewsbury

On the British side, Bangkok Patana School and Shrewsbury International School Bangkok are two of the names that come up again and again. Patana, founded in 1957, is Thailand's oldest and largest British school, run as a not for profit under parent governance on a roughly 40 acre campus in Bang Na. Shrewsbury, affiliated with the 500 year old UK school of the same name, operates two campuses, a riverside site and a second City Campus, and has built a reputation as one of the more academically competitive British options in the city.

American curriculum: ISB and Berkeley

On the American side, International School Bangkok (ISB) and Berkeley International School Bangkok sit at different points on the spectrum. ISB, founded in 1951, is one of the oldest international schools in the country and occupies a large, self contained campus in Nichada Thani, Nonthaburi, effectively its own suburb, popular with families who want space and a tight knit expat community outside the city center. Berkeley, a newer American school founded in 2010, earned full WASC accreditation in 2014 and has built out strong athletics and arts facilities, including competition standard swimming pools, which appeals to families who want a college preparatory American track without the scale of ISB.

Full IB continuum: NIST and KIS Bangkok

For families who specifically want the full IB continuum, not just the Diploma Programme bolted onto a British or American base, NIST International School and KIS International School Bangkok are two of the clearest options. NIST, founded in 1992 with support from Bangkok's UN community, was Thailand's first full IB World School, teaching the PYP, MYP, and DP as one continuous program from a central Sukhumvit campus. KIS, closer to the city center near Huai Khwang, is smaller and more intimate by design, and is generally regarded as delivering strong IB exam results within a tighter knit community than the larger IB schools in the city.

Why location matters more in Bangkok than almost anywhere

If there is one thing I would tell my past self, it is that location matters more in Bangkok than almost anywhere else, because of the traffic. A school that looks perfect on a map can mean a 45 to 75 minute commute each way during peak hours, every single school day, for years. Families based in Sukhumvit (Asoke, Phrom Phong, Thong Lo, Ekkamai) tend to gravitate toward schools clustered in that corridor, while families who choose ISB often end up living inside or near Nichada Thani specifically to avoid the cross town commute. Before you fall in love with a school, map out the actual drive time from where you plan to live, at the time of day you would really be doing the school run, not the optimistic Google Maps estimate.

Waiting lists at Bangkok's most popular schools

The most popular schools in each category, including all six I named above, routinely run waiting lists, particularly for the more commonly requested year groups like early primary and the start of secondary. If a specific school is a priority for your family, apply well before you need a place. Many advisors recommend starting 9 to 12 months ahead for a normal move, and 12 to 18 months ahead if you are targeting a popular year group or a premium school specifically. I would still call admissions directly even when a website lists a firm deadline, since places do open up at different points in the year as other families' plans change.

The fee conversation nobody advertises

Here is something that never shows up in any school's marketing. Mid tier and smaller schools will often negotiate on fees, especially registration or enrollment fees, for families who ask directly. This is not advertised publicly, and you will not find it mentioned on a website or in a brochure. It tends to come up only in an in person conversation with admissions, particularly if you are enrolling more than one child, applying outside the main August intake, or a school is trying to fill a specific year group. It rarely happens at the very top tier, schools like Patana, ISB, or NIST generally do not need to negotiate. But for many of the schools in the middle of the market, it is worth simply asking the admissions team in person whether any flexibility exists on the registration or enrollment fee before you commit.