Yes, Thai Airways offers a top-tier Royal First Class experience to its travelers on international routes from Bangkok to London, Tokyo, and Osaka on its Boeing 777-300ER aircraft fleet. In Thai Airways First Class cabins, travelers can experience exceptional services and perks such as a private suite, relaxation on lie-flat seats, world-class dining, personalized service, extra baggage, in-flight entertainment, an exclusive amenity kit, Wi-Fi, etc. To know more, travelers can visit the official website or read the blog mentioned by Fares First Class.