Find flights
When to book
Airlines
FAQs

Cheap flights from Tonga to Sydney from $378

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
TBU — SYD
23 Aug — 30 Aug1
1 adult

Cheap flight deals from Tonga to Sydney

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

Popular in

June

Cheapest in

December

Average price

$901

Good round-trip deal

$828 or less

Good one-way deal

$452 or less
Highest demand for flights based on searches. 6% potential increase in price ($93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Tonga to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from Tonga to Sydney Kingsford Smith.
Search Deals

Find flight deals from Tonga to Sydney

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

Tue 9/911:20TBU - SYD
1 stop13h 50mFiji Airways
Tue 16/906:00SYD - TBU
1 stop24h 25mFiji Airways
Deal found 16/8$865
Tue 9/917:20TBU - SYD
Nonstop5h 45mMultiple Airlines
Tue 16/913:15SYD - TBU
1 stop17h 10mMultiple Airlines
Deal found 16/8$981
Tue 9/917:20TBU - SYD
Nonstop5h 45mQantas Airways
Tue 16/909:05SYD - TBU
Nonstop4h 20mQantas Airways
Deal found 16/8$990

Cheapflights Fare Finder

 
Customise your flight search to find flights from Tonga to Sydney 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 August 2025.
Use the filters below to find and compare flights from Tonga to Sydney that are best for you.

Fly from

Tonga

Fly to

Sydney

Route

Depart

Return

Price

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 13/9

05:40-18:05

2 stops15h 25m

$444

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 27/9

05:40-12:15

1 stop9h 35m

$453

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Tue 26/8

17:20-20:05

Nonstop5h 45m

$475

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Fri 12/9

12:20-21:40

1 stop12h 20m

$489

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 13/9

17:20-20:05

Nonstop5h 45m

$492

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 27/9

17:20-20:05

Nonstop5h 45m

$496

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Fri 12/9

05:00-17:30

2 stops15h 30m

$520

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Tue 2/9

12:20-21:40

1 stop12h 20m

$533

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Best time to book a flight from Tonga to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Tonga 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 Tonga to Sydney

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

Currently, May is the cheapest month in which you can book a flight from Tonga to Sydney (average of $129). Flying from Tonga to Sydney in October is currently the most expensive (average of $171). 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 TO to SYD?

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

When flying from Tonga to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 18 August 2025.
Check out reviews from past customers who have flown with Fiji Airways and Qantas Airways from Tonga to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.0
Very Good
204 reviews
Check prices

Food

7.5

Entertainment

7.4

Crew

8.5

Comfort

8.0

Boarding

8.1

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
204 reviews
Fiji Airways
8.0
Very Good
204 reviews
Check prices

Food

7.5

Entertainment

7.4

Crew

8.5

Comfort

8.0

Boarding

8.1

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
896 reviews
Fiji Airways
8.0
Very Good
204 reviews
Check prices

Food

7.5

Entertainment

7.4

Crew

8.5

Comfort

8.0

Boarding

8.1

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 Tonga to Sydney. 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 into for flights to Sydney from Tonga?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Tonga. Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • How popular is this Tonga to Sydney flight route?

    The Tonga to Sydney Kingsford Smith flight path was viewed by 103 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Tonga to Sydney one-way?

    The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $453. However, be on the lookout for offers from Qantas Airways and Air New Zealand, as they are both options that can get you from Tonga to Sydney for a low price.

  • What are the cheapest flights from Tonga to Sydney?

    Looking for the cheapest flight from Tonga to Sydney? While on average our users pay $1,080, our data indicates the cheapest price to be $412. The most popular route (Nuku‘alofa Fua'Amotu Intl - Sydney Kingsford Smith), is priced around $865.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Tonga to Sydney 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 Tonga to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Tonga to Sydney (average of $129). Flying from Tonga to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Coogee
Manly
Terrigal
Cronulla
Lithgow
Bondi Beach
Randwick
Leura

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Tonga to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Melbourne to Sydney flights
Melbourne to Coolangatta flights
Avalon to Coolangatta flights
Avalon to Sydney flights
Brisbane to Sydney flights
Perth to Sydney flights
Sydney to Coolangatta flights
Coolangatta to Sydney flights
Sydney to Ballina flights
Adelaide to Sydney flights
Auckland to Sydney flights
Adelaide to Coolangatta flights
Melbourne to Newcastle flights
Cairns to Sydney flights
Maroochydore to Sydney flights
Darwin to Sydney flights
Melbourne to Ballina flights
Wellington to Sydney flights
Christchurch to Sydney flights
Townsville to Sydney flights
Auckland to Coolangatta flights
Canberra to Sydney flights
Avalon to Newcastle flights
Adelaide to Ballina flights
Canberra to Coolangatta flights
Newcastle to Coolangatta flights
Brisbane to Newcastle flights
Melbourne to Moruya flights
Nadi to Sydney flights
Adelaide to Newcastle flights
Perth to Coolangatta flights
Hobart to Sydney flights
Brisbane to Wagga Wagga flights
Queenstown to Sydney flights
Ballina to Sydney flights
Brisbane to Albury flights
Port Macquarie to Sydney flights
Hobart to Coolangatta flights
Cairns to Coolangatta flights
Christchurch to Coolangatta flights
Launceston to Sydney flights
Coolangatta to Newcastle flights
Sydney to Coffs Harbour flights
Coffs Harbour to Sydney flights
Dubbo to Sydney flights
Yulara to Sydney flights
Melbourne to Albury flights
Tontouta to Sydney flights
Proserpine to Sydney flights
Alice Springs to Sydney flights

Top 2 airlines flying from Tonga to Sydney

Discover the top 2 airlines that operate flights from Tonga to Sydney. 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 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$524Average$718FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$752Average$924FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sydney from Tonga today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Tonga to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.