The Guide
Sat, 16 May 2026

Cities / Bangkok / Ramkhamhaeng Advent International School Bangkok (RAIS)

Ramkhamhaeng Advent International School Bangkok (RAIS)

Ramkhamhaeng Advent International School is a WASC-accredited Christian international school offering American curriculum from preschool through Grade 12, positioned as one of Bangkok's most affordable international options with fees around THB 237,500-274,000. While Reddit discussions mention hearing some good things…


Curriculum
American
Fees, annual
THB 185–230k
Ages
2 to 18
Pupils
Est. 700
Founded
1999

Founded in 1999 by the Seventh-day Adventist Mission in Thailand, RAIS operates from its Hua Mak campus serving students from 18 different nationalities. The school follows WASC-accredited American curriculum aligned with California Content Standards, featuring English-only instruction from preschool through high school. Students can take AP courses, SAT, and IELTS examinations, with RAIS serving as an official SAT and AP testing center. The Christian foundation integrates faith-based values with academic learning, emphasizing moral development alongside educational achievement.

Parent discussions on Reddit position RAIS within the budget-friendly tier of Bangkok international schools, with families mentioning hearing positive things about the institution. However, concerns exist within the broader Christian school network about religious content potentially replacing academic subjects, as noted by former students from similar institutions. The school's small student body and diverse nationality mix create an intimate learning environment, though this also means fewer extracurricular options and peer networks compared to Bangkok's larger international schools. RAIS serves families seeking affordable American curriculum education with Christian values integration, though it operates below the radar of Bangkok's most discussed international education options.

Strengths

  • Affordable fees compared to Bangkok's tier-one international schools
  • WASC accreditation ensuring American curriculum standards
  • Official SAT and AP testing center status
  • Small class sizes with personalized attention
  • Diverse student body representing 18 nationalities
  • Christian values integration for families seeking faith-based education
  • English-only instruction environment from early years

Considerations

  • Very small student population may limit extracurricular and social opportunities
  • Christian religious instruction is integral to the curriculum
  • Limited visibility and discussion in expatriate community school comparisons
  • Concerns about religious content potentially affecting academic subjects
  • Less established reputation compared to Bangkok's tier-one international schools
  • Limited information available about university placement outcomes
  • Located in Hua Mak area which may not be convenient for all families

Fee Age Type Amount
Nursery 3 Annual THB 185,000
K1-K2 3 Annual THB 192,000
K3 5 Annual THB 192,000
Grade 1-2 6 Annual THB 216,000
Grade 3 8 Annual THB 216,000
Grade 4 9 Annual THB 217,000
Grade 5 10 Annual THB 217,000
Grade 6-8 11 Annual THB 218,000
Grade 9-11 14 Annual THB 230,000
Grade 12 17 Annual THB 230,000
Book Deposit (Refundable) One-time THB 30,000
Admission Fee (Nursery to K3) One-time THB 50,000
Admission Fee (Grade 1 to 5) One-time THB 75,000
Admission Fee (Grade 6 to 8) One-time THB 80,000
Admission Fee (Grade 9 to 12) One-time THB 90,000

  • Adventist Christian school running American curriculum and AP, founded 1999 and competitively priced for the Bangkok market.
  • Facilities and atmosphere draw praise. Parents describe well-maintained classrooms, a stocked library and strong sports areas, plus a friendly staff culture.
  • Academic feedback is split. Some parents call standards excellent for the price; others said "teachers do not grade or return homework" and gave "very few quizzes and tests, with some teachers giving none".
  • Communication is a recurring complaint. Parents report event notices arriving the day before or hours before, and lengthy disputes over Covid-era school van refunds.
  • Discipline concerns surface from staff voices about vaping and disrespect, with parents and staff sitting on different sides of the culture question.
  • One Reddit parent flagged it as a budget-friendly Bangkok option "within this budget and I've heard some good things about it".

Head of school

Mary Megan Lartey

Mary Megan Lartey serves as the Principal of Ramkhamhaeng Advent International School (RAIS) in Bangkok, leading the school through the 2025-2026 academic year. She authored the official welcome message for returning and new families, emphasizing academic excellence, character development, and spiritual growth in a Christian environment.

Accreditations

  • Western Association of Schools and Colleges (Accrediting Commission for Schools) 01
  • TH_ONESQA 02

  • Result SAT average score 1343 (highest 1530) SY 2024-2025
  • Result IELTS average score 7.0 (highest 8.0) SY 2024-2025

1 Soi Ramkhamhaeng 119, Sukhapibal 3, Huamark Bangkapi Bangkok 10240 Thailand,

School website