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Library at Carlucci American International School of Lisbon, two pupils seen from behind
Carlucci American International School of Lisbon logo

Carlucci American International School of Lisbon

  • Linhó
  • IB DP
  • American HS Diploma

Photo: Carlucci American International School of Lisbon

CAISL is an American international school on a purpose-built campus in Linhó, in the Sintra area, inland from Cascais. It began in a small apartment in 1956 and now brings all its year groups together on one site.

Teaching follows an American approach from Early Childhood through High School. Every graduate earns an American High School Diploma. In the last two years, students can also take the IB Diploma alongside it, and the school says most of them do.

If you’re coming from the US, or you’d like to keep both American and international university options open, CAISL is worth a close look. Ask about the school bus from your area when you visit.

TASIS Portugal is the other American school at Linhó. See how the two compare on fees, buses, admissions and accreditation in CAISL vs TASIS Portugal.

Tuition 2026-2027

Year groupAnnual tuition
Early Childhood – Kindergarten€12,128
Grades 1–2€14,060
Grades 3–5€15,632
Grades 6–8€17,756
Grades 9–12€23,532

Other fees

  • Registration fee (one-time)€600
  • Building fee, per year for the first five years from Grade 1€1,953

From the CAISL 2026-2027 Fees Overview. Lunch is included in tuition for Early Childhood and Kindergarten only. Lunch from Grade 1 and transport are optional extras.

Services

  • School bus or transport

    Confirmed · source

    School bus (extra fee)

    Areas served: Cascais, Lisbon

  • School meals

    Confirmed · source

    Cafeteria lunch and snack bar

  • Gym or sports hall

    Confirmed · source

    Gymnasium, smaller gym and fitness room

  • Swimming pool on site

    Not mentioned

    Varsity swimming season; the 2026 ESC meet was at Piscina de Alapraia. No on-site pool described

  • Dance

    Confirmed · source

    Dance studios; movement and dance in Fine Arts

  • Music lessons or programme

    Confirmed · source

    Choir and orchestra

  • Martial arts

    Confirmed · source

    Capoeira (after-school, extra cost)

Checked on the school's website on 21 Oct 2026; ask the school to confirm.

Check your commute

Times change a lot at rush hour; check around 8:00 on a weekday.

Directions to CAISL, Linhó, 2710-301 Sintra. Opens Google Maps in a new tab; nothing is sent to or stored by Colegio Cascais.

Questions parents ask

Does CAISL offer the IB Diploma?

Yes. Every graduate receives an American High School Diploma, and in Grades 11 and 12 students can also choose the IB Diploma. The school says about 80% of its students take this route.

What are CAISL fees for 2026-2027?

Annual tuition runs from €12,128 (Early Childhood to Kindergarten) to €23,532 (Grades 9–12). There is also a one-time €600 registration fee and a €1,953 building fee each year for the first five years from Grade 1.

What age can my child start at CAISL?

The Early Childhood programme starts with a class for 3-year-olds, followed by a class for 4-year-olds and Kindergarten at age 5.

Facts checked on the school's own website on 21 October 2026. Schools update fees and programmes every year, so please confirm details with the school before you apply.

Sources: caislisbon.org · caislisbon.org/learning/high-school · caislisbon.org/learning/early-childhood · caislisbon.org/join-us/fee-schedule

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