How to Choose an International School in Luxembourg: 2026 Family Guide

Last reviewed: September 2026 by Catherine from ISA. Fee ranges are indicative; always confirm with the school.

Luxembourg is small, but its school system is unusually varied. Nearly half the population is foreign, three languages run through daily life, and the state has invested heavily in public international schools that cost families nothing. That makes choosing an international school in Luxembourg a different exercise from most expat cities, where the only real question is which private school to pay for. This guide sets out the options for 2026 and the questions that help you decide.

Understanding the Luxembourg school landscape

The traditional Luxembourgish public system is trilingual. Children start in Luxembourgish, learn to read and write in German in primary school and move increasingly to French in secondary. It works well for children who arrive young and stay, but it can be hard for a ten-year-old arriving with only English.

Alongside it, families can choose among three broad alternatives. Private international schools teach in English and charge fees. European Schools serve mainly children of EU institution staff, with other families admitted only if places allow. Public international schools, accredited to teach the European curriculum, are open to all residents and free of tuition. Most families end up choosing between the first and the last.

Curricula available

• International Baccalaureate: offered at the International School of Luxembourg and, for the diploma, at some public lycées such as the Athénée.
• British curriculum: St. George's International School follows the English National Curriculum up to IGCSE and A levels.
• European curriculum: European Schools and public international schools, leading to the European Baccalaureate.
• Luxembourgish national curriculum: trilingual public schooling, sometimes with English-language sections at secondary level.
• Alternative pedagogies: Waldorf and Montessori options for younger children.

International schools in Luxembourg to compare

International School of Luxembourg

International School of Luxembourg ISL is the largest private English-language school in the country and runs the IB, including the diploma. Fees are among the highest in Luxembourg, and many families rely on employer support.

St. George's International School, Luxembourg

St. George's International School, Luxembourg St. George's follows the British curriculum and suits families with UK connections or those planning to move on to another British school.

Lycée Michel Lucius International School

Lycée Michel Lucius International School A public school with English-language international classes, so tuition is free. Demand is high and places depend on availability, so contact the school as soon as your move is confirmed.

Athénée de Luxembourg

Athénée de Luxembourg The Athénée is one of the country's oldest public secondary schools and offers the IB Diploma alongside the national programme, a strong option for older students who want a recognised international diploma without private fees.

European School Luxembourg

European School Luxembourg European Schools give priority to children of EU institution staff. Other families can apply, but should see it as an uncertain option rather than a plan.

What school costs in Luxembourg in 2026

Figures are indicative annual amounts in euros. Confirm with each school.

• Private international schools: roughly EUR 15,000 to 30,000 a year, rising with age.
• Registration and capital fees: roughly EUR 1,000 to 5,000 at private schools, often one-off.
• Public international and national schools: no tuition. Families pay for some books, materials, trips and school meals.
• Extras: after-school care, bus services where offered, and exam fees for IGCSE or IB.

A hard fact worth knowing: since 1 March 2020 all public transport in Luxembourg, including buses, trams and trains, has been free for everyone. For families choosing a school across the city, that makes a longer commute much cheaper than it would be elsewhere, and many teenagers travel independently.

Questions that help you decide

How long will you stay? If your posting is two or three years, a private English-language school or a public international school offers continuity with other systems. If you might stay for good, the national system or a public international school with strong French or German teaching keeps doors open to local universities and jobs.

Which languages matter to your family? Public international schools usually let you pick a main language section in English, French or German, and teach other languages on top. Private schools teach mainly in English with French and German as subjects.

What does your employer cover? Some packages pay private fees in full, which changes the calculation entirely. Others give a fixed allowance, and a free public option can let you spend that on housing instead.

What to look for when you visit

Class composition. Ask how many nationalities are in a typical class and how many children arrive or leave each year. High turnover is normal in Luxembourg, but a school that handles it well will have a clear welcome programme and buddy system for newcomers.

Language support. In public international schools, check how quickly children can move between language sections and what help exists for a child starting French or German from zero. In private schools, ask how many hours of French and German are taught each week, since those languages matter for daily life and future work in the country.

After-school care. Many Luxembourg households have two working parents. Maisons relais and school-based childcare vary in hours and cost, so include them in your comparison.

Practical tips for Luxembourg families

Register as a resident quickly. Public schools, including international ones, generally require proof of residence in Luxembourg and assign places based on availability and sometimes catchment. Registration at your commune comes first.

Apply to several options at once. Waiting lists for English sections can be long, particularly in primary. Holding a private offer while you wait for a public place is common.

Think about the cross-border option carefully. Some families live in France, Belgium or Germany to save on housing. Check whether public schools in Luxembourg will accept your children if you are not resident, because rules differ from private schools.

See how Luxembourg schools compare

Read reviews and compare fees for every school with a profile in our ranking of the best schools in Luxembourg.

More guides to schools in Luxembourg

• International School Fees in Luxembourg: 2026 Cost Guide for Families
• Multilingual Schools in Luxembourg City: A 2026 Guide
• ranking of the best schools in Luxembourg

Frequently asked questions

Are there free international schools in Luxembourg?

Yes. Luxembourg runs public international schools that teach the European curriculum in English, French or German sections and charge no tuition to resident families. Some public lycées also offer the IB Diploma or English-language classes. Places depend on availability, so apply early and keep a private option in reserve.

How much does a private international school in Luxembourg cost?

For 2026, private English-language schools such as the International School of Luxembourg and St. George's charge roughly EUR 15,000 to 30,000 a year depending on age. One-off registration or capital fees can add a few thousand euros. Many employers cover part or all of the cost.

Can my child join the Luxembourgish public system without the local languages?

Yes, and reception classes exist for newcomers, but the system is demanding because teaching moves from Luxembourgish to German and then French. Children who arrive young usually adapt well. For older children with only English, a public international school or a private school is usually a smoother start.