Bangkok Suvarnabhumi, Khon Kaen, and Chiang Rai are the top airports THAI Smile flies into and out of during the year.
A flight from Bangkok Suvarnabhumi to Chiang Rai, which has 0 stops, is Rp 1,175,016 which is the least expensive round-trip domestic flight that THAI Smile offers. The cheapest one-way THAI Smile ticket is flying from Bangkok Suvarnabhumi to Chiang Rai. You can expect to pay around Rp 587,508 per ticket. This flight has 0 stops.
THAI Smile does not have flights from Denpasar Bali Ngurah Rai at the moment. There are scheduled flights with THAI Smile out of Singapore Changi though (if you don’t mind flying from this airport). Flying with Ethiopian Air is recommended if you still want to fly from Denpasar Bali Ngurah Rai.