Please note that business on Thai Smile merely consists of the front 3? rows of economy seats but a spare seat next to you, i.e. no one in the middle seat. Maybe a better snack, I can't recall as I only ever have a coffee. No way is it worth the extra cost over economy.

TG217 or TG221 are 747 and because this is peak season you might get lucky and get an F suite. These and all the other flights are all available at the 9,550 fare. You have to select this fare for the flights not to be greyed out.