$349 Find Cheap Flights from Sydney to Bangkok – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Bangkok departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest return fare
$715
Typical prices: $770-$1,166
XiamenAir
Wed 12/8Wed 2/9
SYD - BKK • 1 stop
Cheapest direct flights
$1,000
Typical prices: $969-$1,201
Thai Airways
Fri 13/11Sun 22/11
SYD - BKK • Direct
Top airlines
Cheapest • from $715 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Qantas Airways and Thai Airways. Average duration is 9h 30m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
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Insights
Insights
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 2% compared to booking last minute.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Bangkok (SYD-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Bangkok that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Bangkok

Wed, 12 Aug - Wed, 2 Sep
XiamenAir Logo
11:25 - 00:50
SYD
-
BKK
16h 25m
1 stop
XiamenAir Logo
17:40 - 09:20
BKK
-
SYD
36h 40m
1 stop
$715XiamenAir
Mon, 24 Aug - Thu, 17 Sep
Multiple Airlines Logo
20:35 - 21:00
SYD
-
BKK
27h 25m
2 stops
Multiple Airlines Logo
15:45 - 07:20
BKK
-
SYD
12h 35m
1 stop
$715Multiple Airlines
Fri, 23 Oct - Sat, 31 Oct
Multiple Airlines Logo
21:35 - 14:00
SYD
-
DMK
20h 25m
2 stops
Multiple Airlines Logo
10:45 - 12:10
DMK
-
SYD
21h 25m
2 stops
$715Multiple Airlines
Wed, 21 Oct - Wed, 4 Nov
Scoot Logo
21:35 - 09:55
SYD
-
BKK
16h 20m
1 stop
Scoot Logo
18:25 - 12:10
BKK
-
SYD
13h 45m
1 stop
$719Scoot
Thu, 13 Aug - Mon, 17 Aug
VietJet Air Logo
10:15 - 10:05
SYD
-
BKK
26h 50m
1 stop
VietJet Air Logo
19:55 - 07:20
BKK
-
SYD
32h 25m
1 stop
$719VietJet Air
Tue, 22 Sep - Tue, 29 Sep
Scoot Logo
20:35 - 14:25
SYD
-
BKK
20h 50m
1 stop
Scoot Logo
18:50 - 11:45
BKK
-
SYD
13h 55m
1 stop
$723Scoot
Sat, 8 Aug - Sat, 15 Aug
XiamenAir Logo
11:25 - 00:50
SYD
-
BKK
16h 25m
1 stop
XiamenAir Logo
01:50 - 09:20
BKK
-
SYD
28h 30m
1 stop
$723XiamenAir
Tue, 22 Sep - Fri, 2 Oct
Hainan Airlines Logo
21:00 - 10:00
SYD
-
BKK
16h 00m
1 stop
Hainan Airlines Logo
19:20 - 14:25
BKK
-
SYD
16h 05m
1 stop
$737Hainan Airlines
Wed, 19 Aug - Sun, 23 Aug
VietJet Air Logo
10:15 - 14:45
SYD
-
BKK
31h 30m
1 stop
VietJet Air Logo
13:50 - 07:20
BKK
-
SYD
14h 30m
1 stop
$746VietJet Air
Tue, 29 Sep - Wed, 14 Oct
Hainan Airlines Logo
21:00 - 10:00
SYD
-
BKK
16h 00m
1 stop
Hainan Airlines Logo
19:20 - 15:25
BKK
-
SYD
16h 05m
1 stop
$763Hainan Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Bangkok flights

Get data-powered insights and trends into flights from Sydney to Bangkok to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Sydney to Bangkok?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Bangkok departing in August.

Flight prices are below average for this route right now.

Flights to Bangkok from Sydney usually cost between $745 and $1,055 in August.
The lowest price found in the past 5 days was $715 on XiamenAir (9 Aug–2 Sept).

What is the cheapest Sydney to Bangkok flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Sydney to Bangkok costs $1,035 on the route between Sydney (SYD) and Bangkok Suvarnabhumi Airport (BKK). It is also the most popular route.

What’s the cheapest day of the week to fly from Sydney to Bangkok?

The average price of all round-trip flights from Sydney to Bangkok clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Sydney to Bangkok, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Bangkok, Wednesday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Sydney to Bangkok?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Bangkok, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Bangkok is October, where tickets cost $945 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,552 and $1,179 respectively.

How far in advance should I book a flight from Sydney to Bangkok?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Bangkok, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sydney to Bangkok, you should book around 5 weeks before departure, which saves you about 2% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Cheapest flight

$349
Flight from Sydney to Bangkok Suvarnabhumi Airport

When to book flights from Sydney to Bangkok

Are your dates flexible? Find out the best times to travel from Sydney to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Bangkok

  • What is the cheapest flight from Sydney to Bangkok?

    In the last 5 days, the lowest price for a flight from Sydney to Bangkok was $349 for a one-way ticket and $715 for a return.

  • Which airports will I be using when flying from Sydney to Bangkok?

    Sydney is served by only 1 airport and there are 2 airports in Bangkok. You will leave Sydney from Sydney Kingsford Smith and you will be arriving in Bangkok at one of these airports: Bangkok Suvarnabhumi or Bangkok Don Mueang Intl.

  • Which aircraft models fly most regularly from Sydney to Bangkok?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Bangkok?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Sydney and Bangkok, with SkyTeam being the most commonly used for this route.

  • What is the most popular stopover when flying to Bangkok from Sydney?

    Singapore is the most popular stopover city among KAYAK users travelling from Sydney to Bangkok.

  • How does KAYAK find such low prices on flights from Sydney to Bangkok?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Bangkok.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Bangkok?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Bangkok?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Bangkok with an airline and back to Sydney with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Bangkok?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bangkok from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Sydney Kingsford Smith to Bangkok?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Sydney Kingsford Smith to Bangkok.
Find which airlines fly direct from Sydney Kingsford Smith Airport to Bangkok, which days they fly and book direct flights.

Direct departures

Sydney Kingsford Smith to Bangkok

Monday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Tuesday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Wednesday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Thursday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Friday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Saturday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Sunday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

See more direct flights

Direct returns

Bangkok to Sydney Kingsford Smith

Monday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Tuesday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Wednesday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Thursday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Friday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Saturday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

Sunday

Qantas Airways,Thai Airways

Qantas Airways,Thai Airways

See more direct flights

Reviews of the top 5 airlines flying from Sydney to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Bangkok. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Bangkok? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Thai AirwaysOverall score based on 412 reviews
7.5Food
6.9Entertainment
8.0Boarding
8.4Crew
7.7Comfort
Airline reviews

Excellent airline. The plane was clean and the staff were very attentive

10.0 ExcellentThad, Dec 2025
NRT - BKK
Read more Thai Airways reviews

Excellent airline. The plane was clean and the staff were very attentive

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

USB charging port was not working at my seat 48K.

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

Service on board was excellent. Flight attendant was very helpful. I wish the website is more functional. I can't even choose seats online and had to call the customer service. During check-in at the counter in CGK, I saw a printed page about paying for the bulkhead and exit row seats, so I asked the staff at the check-in counter. I was told that the flight is full and there isn't any seats available for paid upgrade. When I boarded the plane, I saw so many bulkhead and exit row seats empty and asked the flight attendant. He allowed me to purchase the upgrades on board. It would have been nice if I could purchase the upgrades ahead of time, eg. During online check-in or bag drop at the airport. The economy seats in the A350-900 are arranged in 3-3-3 configuration. Seat width is a bit tight for me.

My flight with Qantas was excellent, the crew were exceptional, the food was very good, and the seats were surprisingly spacious and comfortable. I was extremely disappointed when my checked bag did not make it onto my connecting flight, but was pleased with the ease of filing a report of a missing bag with Qantas at the Auckland airport - there, my pleasure ended. I can see, with an apple tag on my bag, that it is still in Sydney and has not moved in more than 30 hours. I shared the tracking information with Qantas and was assured when I filed the missing bag report that my bag would be delivered first thing the next morning on the next flight from Sydney to Auckland. Qantas' missing bag tracking feature still lists its status as "searching for your bag, check back later" more than a full 24 hours after filing the report despite my having shared tracking information, a photo of the bag, and calling the customer care line and being assured that an "urgent action message" had been sent to the team in Sydney. The lack of communication from Qantas' customer service department and the lack of action after an incredibly expensive business class ticket price is outrageous and has, definitively, affected my willingness to consider flying Qantas in the future, much less on long-haul international flights with high cost airfare.

Going from Sydney to London on a single flight number was very convenient, not having to worry about changing planes. Entertainment system on A380 economy cabin is very dated. Lavatories are small. The self serve refreshments have been significantly reduced since the A380 first started.

Great food and good entertainment options for the long flight.

It seems that qantas are trying hard to regain their status as Australia's premier airline. I only flew economy but happy with the service entertainment, food, configuration everything.

We had bulkhead seats in a A380 in the upper deck in seats 31 D and E. Storage was very limited other than in overhead bin - which is not within reach when in seat. Yet paying same price as others in premium economy who have a lot more storage within arm’s reach. Seems very unfair.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

When I originally booked this flight, I was expecting to travel on Qantas. When the itinerary changed and the long-haul segment was operated by American Airlines, we were disappointed but remained open-minded. Unfortunately, the overall service experience fell far short of expectations. This was a long-haul international flight. Getting up periodically to use the restroom or stretch is inevitable, especially on flights of this duration. However, each time we stood up, we felt as though we were inconveniencing the crew. The tone and body language often suggested that we were in the way or disrupting something simply by moving about the cabin. As a result, I avoided getting up as often as I needed to and was physically very sore upon arrival. Meal service was similarly impersonal. The options were presented in single words “beef or veggie,” “pasta or beef” without any description of what was actually being served. There was little engagement or courtesy beyond that. Even simple expressions of gratitude were often not acknowledged. I am accustomed to no-frills travel and do not expect luxury. What was disappointing was not the absence of extras, but the absence of basic warmth and professionalism. On a long-haul international flight, small moments of courtesy and humanity make a significant difference. In this case, the experience felt transactional and dismissive rather than welcoming. I hope this feedback is taken constructively, as there is a meaningful difference between efficient service and indifferent service.

Business seats not as comfortable or private as most competitors (e.g. Qantas was outstanding), and movie selection was much more limited than Qantas or United has been recently

It was a good flight and no complaints. It just wasn't anything that was better than any other flight.

One of the oldest most uncomfortable "lay down" seats I've ever experienced. Old plane and old seats that don't lay flat. The seat back does not even recline - at all. Instead the legrest awkwardly extends to fill the gap between a small cubby into which you must insert your feet/legs. I am 5' 11" and could not lay straight but had to tuck my knees. Ticket was also very expensive. Would not recommend flying business/first on Finair from Melbourne to Bangkok and will not do so again myself.

Poor seats. Not helpful crew. The food was awful.overall very very bad experience. Traveled with the family of 5

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

Crew: Everybody was polite. People just need to get efficient and less reworking things. Entertainment: Could have move movies and games. The “music” section is a joke, only ONE available. Food: The food provided on the flights boarding in china needs a serious reworking. Too much oil, bad for your stomach, tastes too artificial and the eggs were a giant mass of green dough.

Food was terrible. Fish was equal to a sausage and scrumbled eggs were terribly green with a quite weird fllavour. Everybody with me hated all options. The best food was the bread with butter.

Had some luggage loading delays but it was still a good experience

Wuhan - Dubai. Old plane: 1. Only USB charger. No power outlet to plug in.. 2. Super narrow seat layout 3. Toilet cover consistently fell down and hit my back when sitting on it.. :( 4. Entertainment system touch screen not sensitive, and need to press hard or use finger tips to hit. Crew were very nice and accommodating though.

Quality flight from start to finish. Customer service is evidently very important to this company. The staff really exceeded expectations.

Surprised that the safety briefing was only conducted in Malay language and no English despite there are foreigners on board. MH should take safety more seriously.

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

AC not working, just slowly blowing room temperature air. Long taxi time does not help as well. Sweating all over the whole trip.

Did not take as cancelled 3 time so took another airline

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

No recognition for one World Emerald member. I got row 1 in business class and it was pathetic. No leg space, cramped space, less recline

I had purchased extra leg room for all legs of the flight but due to a delay in leaving Perth I was put on another flight but with Emirates. My luggage was initially lost but later found and my suitcase was broken. I ended up losing my upgrades

Personable, friendly service. Crew interactions always naturally pleasant and polite. The crew really enjoy their job and interactions with one another. Public Addresses are all smooth, clear and unambiguous - this instils confidence. Landing was butter-smooth in what seemed to be challenging and turbulent conditions - Kudos to the flight crew. Boarding and airport experience were good also.

Flew business class. Our luggage was the last to arrive at the belt; 15 minutes after the last bag. Sigh.

3 hours delay ,we changed plane after boarding and waiting inside

The cosmetic condition was pretty run down. The carpets were badly worn out. Even the paint on the wings was chipped and peeled! Looks like they are running these 787s to the ground..

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

The crew was not customer oriented at all, even confrontational . The aircraft needs more attention to detail as far as comfort, and the 1 hour sitting at the gate with no air is inexcusable

We flew on the 787 Dreamliner direct to main gate at KLIA2, quick entry via eGate and on the train 41mins after touchdown. Go well SCOOT

Was on scoot plus. The only good thing about the flight was the spacious seats. Tables and armrests were extremely dirty Food: bad Entertainment: non existent Wifi: unable to connect, then was painfully slow that we couldn’t even send messages Good thing we had a night flight, so we just slept throughout.

Not clear why boarding passes could only be issued at the counter and not through the kiosk. I had already check-in on the web, so waiting to obtain a boarding pass 1.5 hours before the actual flight defeats the purpose of early web check-in.

Me and my Partner were in seats 6A and 6B. (Which we paid a premium for). Unfortunately the person is seat 6C was large and because of his size my Partner was squashed to the point of discomfort and unable to sit properly. We requested to be moved to some empty seats and two hours into the flight the crew moved us. Perhaps it’s time airlines began checking passenger sizes to ensure they don’t encroach into fellow passengers seating space!

It was a cheaper flight and it arrived early. I thought the crew were pretty noisy for an overnight flight, and my friend was not able to sleep because of the noise. Also I think it’s absurd they don’t provide complementary water. Why does everything have to be a surcharge? Airplanes are dehydrating and it would be beneficial to help passengers stay healthy.

Extra luggage after you purchase 1 is gonna jacked u up to 800sgd which is so up to the hook... you could buy 3 round trips ticket on that price.. im so disappointed.. im not gonna choose this airline anymore.. horrible experience...

Everything you need to know for your flight from Sydney to Bangkok

Information on your arrival and departure airports