HSR line connecting three airports to commence operations in 2029, Thailand January 30, 2023 | Asia Pacific News, News The high-speed rail line connecting three airports — Don Mueang, Suvarnabhumi, and U-Tapao — in Thailand is expected to be operational in 2029. The line is one of the key developments under Thailand’s... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password