Prem Tinsulanonda International School (Prem/PTIS) vs American Pacific International School (APIS)
Side by side from CredRadar's verified dataset — every fee carries its source label. Last verified 2026-10-06.
Photo: Google MapsPrem Tinsulanonda International School (Prem/PTIS)
Chiang Mai, Mae Rim · Chiang Mai
Photo: Google MapsAmerican Pacific International School (APIS)
Chiang Mai, Hang Dong (+ primary campus in city) · Chiang Mai
In short
How they differ
- On published fees, American Pacific International School (APIS) is the less expensive of the two: its range (฿250,650 – ฿524,800 / year) sits against ฿416,000 – ฿814,000 / year at Prem Tinsulanonda International School (Prem/PTIS) — a gap of ฿289,200 at the top of the range and ฿165,350 at entry level.
- Curriculum: Prem Tinsulanonda International School (Prem/PTIS) lists IB PYP/MYP/DP/CP — all four; American Pacific International School (APIS) lists American + IB PYP/MYP/DP. That difference — not the brand name — is what most affects transferability to your next school or university system.
- Over 13 years at today's fees, the midpoint totals are ฿7,995,000 at Prem Tinsulanonda International School (Prem/PTIS) and ฿5,040,425 at American Pacific International School (APIS) — a difference of ฿2,954,575 before annual increases.
| Prem Tinsulanonda International School (Prem/PTIS) | American Pacific International School (APIS) | |
|---|---|---|
| Location | Chiang Mai, Mae Rim · Chiang Mai · North | Chiang Mai, Hang Dong (+ primary campus in city) · Chiang Mai · North |
| Founded | 2001 | — |
| Grades / ages | 3–19, EY–G12 | Nursery–G12 |
| Curriculum | IB PYP/MYP/DP/CP — all four | American + IB PYP/MYP/DP |
| Accreditation / notes | IB, CIS, NEASC, ONESQA (World Schools listing) | IB (all 3, IB finder) |
| Annual tuition | ฿416,000 – ฿814,000 / year [O] Official fees Full fees breakdown | ฿250,650 – ฿524,800 / year [O] Official fees Full fees breakdown |
| Est. 13 years | ฿5,408,000 – ฿10,582,000 at today's fees, before annual increases | ฿3,258,450 – ฿6,822,400 at today's fees, before annual increases |
| Fee history (recorded) | +8.8% on recorded points, 2021/22 → 2025/26 (5 school years recorded) Fee history | +23.2% on recorded points, 2021/22 → 2024/25 (4 school years recorded) Fee history |
| Boarding | Weekly boarding (5 days/nights) 350,000/yr (87,500/term); Full boarding (7 days/nights) 478,000/yr (119,500/term); Temporary boarding 2,250/day-night (day students, on request) — AY2026-27 fee schedule | Residential (Main Campus, G5-G12): Weekly Board 267,800-305,500/yr by grade; Full Board 337,800-375,500/yr by grade (2026-27) |
| Nearest rail station | — | — |
| Google rating | No live Google rating (Google removed K-12 reviews in Apr 2025) | No live Google rating (Google removed K-12 reviews in Apr 2025) |
| School website | Visit website → | Visit website → |
Fees are the published annual ranges in our dataset (checked 2026-10-06); one-off enrolment charges, deposits and transport are additional — each school's fees page shows the published wording in full. Enrolment/student numbers are not shown because neither school publishes a figure we could verify in this pass.
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