6 Best TEFL Courses for Teaching Overseas (Updated 2025)

"If you want the closest thing to in-classroom training, I consider the International TEFL Academy the best on the market: their online courses are fully interactive, collegiate-level programs taught by university-level professors (their popular ~11-week course requires about 10–12 hours per week and costs $1,599, with a four-week intensive option around $2,099), the online format is asynchronous so you can log in anytime but you must meet weekly deadlines, and they also offer in-person courses in over twenty countries—some of which even guarantee job placement." - Matthew Kepnes