Thai Airways International this week made additional service adjustment for summer 2017 operation to Japan and Korea, with a number of aircraft changes. Planned aircraft changes as follow.
Bangkok – Osaka Kansai TG622/623 777-300ER replaces 747-400 in May and July 2017
Bangkok – Seoul Incheon
TG658/659 747-400 continues operating on/after 26MAR17, 1 daily
TG657/656 777-300 replaces A330-300 from 26MAR17, 1 daily
Bangkok – Tokyo Narita TG640/641 26MAR17 – 30JUN17 A380 replaces A330-300 (Overall Tokyo Narita A380 service increases to 2 daily)