The cheapest month to fly to Chiang Rai from Australia is in July. Flight prices, which tend to average around $793, are often lower during this time because this is during the off-season. If you don’t want to visit Chiang Rai in July, then you should wait until October to fly from Australia, when ticket prices are also cheap, with an average price of $933.
The ideal time to book your flight to Chiang Rai is 42 days in advance, when prices tend to average $1,137.
The cheapest day to depart from Australia to Chiang Rai is on a Wednesday. Travellers who choose to depart for Chiang Rai on a Wednesday will often find tickets for as low as $984. Flights from Australia to Chiang Rai on a Friday will generally be more expensive and average around $1,646. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.