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Cheap flights from Sydney to Tongatapu from $357

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Sydney to Tongatapu

Keep the following information in mind while searching for Sydney to Tongatapu flight deals. Data was last updated 18 September 2025.

Round-trip from

$643

One-way from

$357

Popular in

December

Cheapest in

March

Average price

$916

Good round-trip deal

$798 or less

Good one-way deal

$447 or less
Fiji Airways
  • Fiji Airways
  • 31/10-7/11
  • 2 total stops
  • 14h 50m total
  • Sydney to Tongatapu
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Fiji Airways
  • Fiji Airways
  • 16/10
  • 1 total stop
  • 9h 30m total
  • Sydney to Tongatapu
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($122 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Sydney Kingsford Smith to Tongatapu.
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Price to beat on a one-way flight from Sydney Kingsford Smith to Tongatapu.
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Find flight deals from Sydney to Tongatapu

Cheapest flights from Sydney to Tongatapu
Explore the most affordable flight options available from Sydney to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1006:00SYD - TBU
1 stop7h 25mFiji Airways
Fri 7/1116:25TBU - SYD
1 stop7h 25mFiji Airways
Deal found 15/9$643
Sat 1/1106:00SYD - TBU
1 stop7h 25mFiji Airways
Tue 4/1105:00TBU - SYD
1 stop18h 50mFiji Airways
Deal found 15/9$649
Sat 18/1006:00SYD - TBU
1 stop7h 25mFiji Airways
Tue 28/1005:00TBU - SYD
1 stop9h 45mFiji Airways
Deal found 16/9$712
Thu 9/1006:00SYD - TBU
1 stop7h 25mFiji Airways
Tue 14/1005:00TBU - SYD
1 stop9h 45mFiji Airways
Deal found 17/9$742
Tue 25/1109:10SYD - TBU
Nonstop4h 35mMultiple Airlines
Sat 29/1116:25TBU - SYD
1 stop22h 05mMultiple Airlines
Deal found 17/9$767
Sat 1/1106:00SYD - TBU
1 stop7h 25mMultiple Airlines
Sat 8/1116:55TBU - SYD
Nonstop5h 20mMultiple Airlines
Deal found 16/9$839
Sat 11/1009:05SYD - TBU
Nonstop4h 20mQantas Airways
Sat 18/1016:20TBU - SYD
Nonstop5h 45mQantas Airways
Deal found 16/9$874
Sat 18/1006:00SYD - TBU
1 stop7h 25mMultiple Airlines
Tue 28/1016:55TBU - SYD
Nonstop5h 20mMultiple Airlines
Deal found 17/9$875
Sat 18/1009:05SYD - TBU
Nonstop4h 20mQantas Airways
Tue 28/1016:55TBU - SYD
Nonstop5h 20mQantas Airways
Deal found 16/9$916

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Tongatapu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Sydney to Tongatapu that are best for you.

Fly from

Sydney

Fly to

Tongatapu

Route

Depart

Return

Price

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 10/2

14:10-01:50

1 stop9h 40m

Nuku‘alofa Fua'Amotu Intl

Tue 24/2

11:20-21:50

1 stop12h 30m

$649

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 11/11

14:10-01:05

1 stop8h 55m

Nuku‘alofa Fua'Amotu Intl

Thu 20/11

16:25-21:50

1 stop7h 25m

$655

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 14/11

06:00-15:25

1 stop7h 25m

Nuku‘alofa Fua'Amotu Intl

Wed 19/11

10:25-21:50

1 stop13h 25m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 10/11

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Wed 19/11

10:25-12:30

1 stop28h 05m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 10/11

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Thu 20/11

05:00-12:30

1 stop9h 30m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Thu 13/11

06:00-15:25

1 stop7h 25m

Nuku‘alofa Fua'Amotu Intl

Mon 17/11

11:20-21:50

1 stop12h 30m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 12/11

14:00-15:25

1 stop23h 25m

Nuku‘alofa Fua'Amotu Intl

Mon 17/11

11:20-21:50

1 stop12h 30m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 12/11

14:00-15:25

1 stop23h 25m

Nuku‘alofa Fua'Amotu Intl

Sat 15/11

16:25-12:30

1 stop22h 05m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 12/11

14:00-15:25

1 stop23h 25m

Nuku‘alofa Fua'Amotu Intl

Wed 19/11

10:25-21:50

1 stop13h 25m

$690

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Thu 13/11

06:00-15:25

1 stop7h 25m

Nuku‘alofa Fua'Amotu Intl

Wed 19/11

10:25-21:50

1 stop13h 25m

$690

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 21 results
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Best time to book a flight from Sydney to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Tongatapu

What is the cheapest month to book a flight from Sydney to Tongatapu?

Currently, April is the cheapest month in which you can book a flight from Sydney to Tongatapu (average of $447). Flying from Sydney to Tongatapu in December is currently the most expensive (average of $803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to TT?

Find hourly flight availability from Sydney to Tongatapu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sydney to Tongatapu as you normally would.

How much does it cost for a return flight from Sydney to Tongatapu?

Reviews of airlines servicing Tongatapu

Get insights into the airlines that provide service to Tongatapu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tongatapu. Reviews last updated 18 September 2025.
Check out reviews from past customers who have flown with Fiji Airways, Air New Zealand, andQantas Airways from Sydney to Tongatapu to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.0
Very Good
205 reviews
Check prices

Boarding

8.1

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.5

Overall

8.0

Reviews

1 / 16
6.0
Good

Christopher,June 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!
Fiji Airways
8.0
Very Good
205 reviews
Fiji Airways
8.0
Very Good
205 reviews
Check prices

Boarding

8.1

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.5

Overall

8.0

Reviews

1 / 16
6.0
Good

Christopher,June 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!
Air New Zealand
8.0
Very Good
505 reviews
Fiji Airways
8.0
Very Good
205 reviews
Check prices

Boarding

8.1

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.5

Overall

8.0

Reviews

1 / 16
6.0
Good

Christopher,June 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!
Qantas Airways
7.5
Good
907 reviews
Fiji Airways
8.0
Very Good
205 reviews
Check prices

Boarding

8.1

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.5

Overall

8.0

Reviews

1 / 16
6.0
Good

Christopher,June 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Related info for your journey

Find useful and relevant information for your journey from Sydney to Tongatapu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sydney to Tongatapu?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Tongatapu. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

  • How popular is this Sydney to Tongatapu flight route?

    Flights from Sydney Kingsford Smith to Tongatapu have been viewed 1,683 times in the past calendar month.

  • How long is the flight from Sydney to Tongatapu?

    There are many flights that can get you from Sydney to Tongatapu in 9h 40m. Fly via Fiji Airways to get the fastest option. There are 3584 km between Sydney and Tongatapu.

  • What are the cheapest flights from Sydney to Tongatapu?

    Looking for the cheapest flight from Sydney to Tongatapu? While on average our users pay $710, our data indicates the cheapest price to be $268. The most popular route (Sydney Kingsford Smith - Nuku‘alofa Fua'Amotu Intl), is priced around $627.

  • Can I find deals for flights from Sydney to Tongatapu that include hotel bookings?

    Yes. In addition to deals on Sydney to Tongatapu flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Tongatapu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Tongatapu.

  • Can I find deals for business class flights from Sydney to Tongatapu?

    Yes. Cheapflights offers flight deals from Sydney to Tongatapu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Tongatapu?

    Currently, April is the cheapest month in which you can book a flight from Sydney to Tongatapu (average of $447). Flying from Sydney to Tongatapu in December is currently the most expensive (average of $803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Sydney to Tongatapu

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Nuku‘alofa flights
Sydney to Vava'u flights

Top 3 airlines flying from Sydney to Tongatapu

Discover the top 3 airlines that operate flights from Sydney to Tongatapu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$520Average$743FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$618Average$873FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$855Average$1,106FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

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How does Cheapflights help users find flights from Sydney to Tongatapu?

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Why should you use Cheapflights to find cheap flight tickets from Sydney to Tongatapu?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Tongatapu from Sydney.

Can Cheapflights find flights from Sydney to Tongatapu with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Tongatapu flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Tongatapu become cheaper?

Yes! Start tracking prices for Sydney to Tongatapu flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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