THAI Smile Airways would like you to experience the superior service in the Smile Plus or Premium Economy class in Indochina routes including Yangon, Vientiane, Luang Prabang, Phnom Penh and Siem Reap with a special promotion, starting at Bt13,855.

Lufthansa is among the airlines offering a third class of seating, a little pricier than economy but with plenty of perks