Cheap flights from Sydney to Bangkok from $266

If you aren’t able to travel during the month of August, then book flights to Bangkok from Sydney during October instead. Flights to Bangkok in October, while not as cheap as those in August, still average around $579.

On average, the least expensive day to fly to Bangkok from Sydney is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,110. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Sydney to Bangkok on a Saturday will generally be more expensive and average around $1,348. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Bangkok is in the morning. momondo users have found flights departing from Sydney to Bangkok in the morning for as low as $1,132. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $1,462. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Sydney Kingsford Smith to Bangkok Suvarnabhumi for the best Sydney Kingsford Smith - Bangkok flight prices

You are more likely to see cheaper flights to Bangkok from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $739 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Sydney for as low as $673 on momondo.

There are 3 cabin classes available to choose from on Sydney to Bangkok flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Jetstar, VietJet Air, and China Eastern are the most popular carriers operating from Sydney Kingsford Smith to Bangkok

Thai Airways, Scoot and Qantas Airways are the top three most popular airlines that fly to Bangkok from Sydney according to our data. Thai Airways is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 8 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% of flights between Sydney and Bangkok have experienced a delay on any given week. The average delay length over the past 12 months has been 104 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, Thai Airways have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of June 2026, there are 15 flights per day flying from Sydney to Bangkok. The most common time of day flights depart is 9:00AM, with 68% of flights taking off at noon.

As of June 2026, there are 110 flights per week flying from Sydney to Bangkok. The most common day of the week flights depart is Tue, with 15% of flights taking off on this day.