Cheap flights from Sydney to Bangkok from $273

If you are unable to visit Bangkok Suvarnabhumi Airport during the month of October, then departing from Sydney during the month May is also very affordable. Most momondo users find prices during this month for around $849.

On average, the least expensive day to fly to Bangkok Suvarnabhumi Airport from Sydney is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,335. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Bangkok Suvarnabhumi Airport on Thursday is $1,414.

According to our data, the cheapest time of day to fly to Bangkok Suvarnabhumi Airport is in the afternoon. momondo users have found flights departing from Sydney to Bangkok Suvarnabhumi Airport in the afternoon for as low as $1,348. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are $1,402 on average. Flights to Bangkok Suvarnabhumi Airport from Sydney at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $975 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Sydney for as low as $877 on momondo.

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

China Eastern is the most popular carrier operating from Sydney Kingsford Smith to Bangkok Suvarnabhumi

Thai Airways, Scoot and Qantas Airways are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Sydney according to our data. Thai Airways is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 21 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% 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 98 minutes.

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

Tuesday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

Singapore (SIN) was the most common stop: 44% of momondo users choosing one-stop flights on this route connected there.

Flights via Beijing (PEK) offer the lowest average return price of $430.

Flights connecting via Kuala Lumpur (KUL) have the shortest average one-way travel time: 14h 01m.

Taipei City (TPE) has the shortest average stopover time for this route: 1h 23m.

16 flights are operational daily from Sydney to Bangkok Suvarnabhumi Airport as of March 2026. The most popular departure time for this route is 10:00, with 70% of flights per day taking off at midday.

As of March 2026, there are 118 flights per week flying from Sydney to Bangkok Suvarnabhumi Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.