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Cheap flights from Australia to Tonga from $358

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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Australia to Tonga

Keep the following information in mind while searching for Australia to Tonga flight deals. Data was last updated 19 August 2025.

Round-trip from

$653

One-way from

$358

Popular in

December

Cheapest in

March

Average price

$787

Good round-trip deal

$729 or less

Good one-way deal

$449 or less
Fiji Airways
  • Fiji Airways
  • 14/10-30/10
  • 2 total stops
  • 39h 30m total
  • Australia to Tonga
Search Deals
Fiji Airways
  • Fiji Airways
  • 27/10
  • 1 total stop
  • 19h 55m total
  • Australia to Tonga
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($49 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 Australia to Tonga.
Search Deals
Price to beat on a one-way flight from Australia to Tonga.
Search Deals

Find flight deals from Australia to Tonga

Cheapest flights from Australia to Tonga
Explore the most affordable flight options available from Australia to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Tue 14/1014:15SYD - TBU
1 stop17h 10mFiji Airways
Wed 29/1005:00TBU - SYD
1 stop9h 45mFiji Airways
Deal found 19/8$653
Thu 2/1013:15SYD - TBU
1 stop23h 40mFiji Airways
Thu 9/1016:25TBU - SYD
1 stop22h 20mFiji Airways
Deal found 18/8$662
Wed 1/1013:15SYD - TBU
1 stop23h 40mFiji Airways
Wed 8/1010:25TBU - SYD
1 stop28h 20mFiji Airways
Deal found 17/8$667
Mon 27/1011:40BNE - TBU
1 stop19h 55mFiji Airways
Sat 1/1116:25TBU - BNE
1 stop9h 10mFiji Airways
Deal found 19/8$679
Tue 9/913:15SYD - TBU
1 stop17h 10mFiji Airways
Wed 24/910:25TBU - SYD
1 stop28h 20mFiji Airways
Deal found 19/8$690
Tue 7/1006:00SYD - TBU
1 stop25h 25mFiji Airways
Sat 11/1005:40TBU - SYD
1 stop9h 35mFiji Airways
Deal found 17/8$702
Tue 21/1014:25MEL - TBU
1 stop17h 00mFiji Airways
Sat 25/1016:25TBU - MEL
1 stop22h 35mFiji Airways
Deal found 19/8$718
Tue 26/809:05SYD - TBU
Nonstop4h 20mMultiple Airlines
Wed 3/910:25TBU - SYD
1 stop28h 20mMultiple Airlines
Deal found 18/8$730
Sat 11/1009:05SYD - TBU
Nonstop4h 20mMultiple Airlines
Sat 18/1005:40TBU - SYD
1 stop9h 35mMultiple Airlines
Deal found 19/8$733
Sat 6/909:05SYD - TBU
Nonstop4h 20mMultiple Airlines
Sat 13/905:40TBU - SYD
1 stop9h 35mMultiple Airlines
Deal found 19/8$735
Thu 2/1013:30MEL - TBU
1 stop23h 25mFiji Airways
Thu 9/1016:25TBU - MEL
1 stop22h 35mFiji Airways
Deal found 18/8$741
Fri 3/1023:35MEL - TBU
1 stop13h 20mFiji Airways
Fri 10/1005:40TBU - MEL
1 stop9h 20mFiji Airways
Deal found 19/8$801

Cheapflights Fare Finder

 
Customise your flight search to find flights from Australia to Tonga 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 19 August 2025.
Use the filters below to find and compare flights from Australia to Tonga that are best for you.

Fly from

Australia

Fly to

Tonga

Route

Depart

Return

Price

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 15/10

14:15-15:25

1 stop23h 10m

Nuku‘alofa Fua'Amotu Intl

Wed 29/10

05:00-12:45

1 stop9h 45m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 17/10

14:15-01:45

1 stop9h 30m

Nuku‘alofa Fua'Amotu Intl

Thu 30/10

16:25-12:45

1 stop22h 20m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 14/10

14:15-09:25

1 stop17h 10m

Nuku‘alofa Fua'Amotu Intl

Mon 27/10

11:20-12:45

1 stop27h 25m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Thu 16/10

14:15-15:25

1 stop23h 10m

Nuku‘alofa Fua'Amotu Intl

Mon 27/10

11:20-12:45

1 stop27h 25m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 15/10

14:15-15:25

1 stop23h 10m

Nuku‘alofa Fua'Amotu Intl

Thu 30/10

16:25-12:45

1 stop22h 20m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Thu 16/10

14:15-15:25

1 stop23h 10m

Nuku‘alofa Fua'Amotu Intl

Fri 31/10

05:40-12:45

1 stop9h 05m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 17/10

14:15-15:25

1 stop23h 10m

Nuku‘alofa Fua'Amotu Intl

Sat 25/10

05:40-13:15

1 stop9h 35m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 17/10

14:15-01:45

1 stop9h 30m

Nuku‘alofa Fua'Amotu Intl

Fri 31/10

05:40-12:45

1 stop9h 05m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 14/10

14:15-09:25

1 stop17h 10m

Nuku‘alofa Fua'Amotu Intl

Thu 30/10

16:25-12:45

1 stop22h 20m

$653

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 14/10

14:15-09:25

1 stop17h 10m

Nuku‘alofa Fua'Amotu Intl

Wed 29/10

05:00-12:45

1 stop9h 45m

$653

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 results
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Best time to book a flight from Australia to Tonga

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

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

Currently, April is the cheapest month in which you can book a flight from Australia to Tonga (average of $447). Flying from Australia to Tonga in December is currently the most expensive (average of $787). 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 AU to TO?

Find hourly flight availability from Australia to Tonga. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

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

Reviews of airlines servicing Tonga

Get insights into the airlines that provide service to Tonga. 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 Tonga. Reviews last updated 19 August 2025.
Check out reviews from past customers who have flown with Fiji Airways, Air New Zealand, andQantas Airways from Australia to Tonga 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

Crew

8.5

Comfort

8.0

Entertainment

7.4

Boarding

8.1

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
204 reviews
Fiji Airways
8.0
Very Good
204 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.4

Boarding

8.1

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
504 reviews
Fiji Airways
8.0
Very Good
204 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.4

Boarding

8.1

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
896 reviews
Fiji Airways
8.0
Very Good
204 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.4

Boarding

8.1

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 Australia to Tonga. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Australia to Tonga flight route?

    Flights from Australia to Tonga have been viewed 1,661 times in the past calendar month.

  • How long is the flight from Australia to Tonga?

    For as low as $653, Fiji Airways can have you in Tonga from Australia in 23h 10m. Airlines will cover a distance of 3584 km.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Australia to Tonga (average of $447). Flying from Australia to Tonga in December is currently the most expensive (average of $787). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Australia to Tonga

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Australia to Tonga

Discover the top 3 airlines that operate flights from Australia to Tonga. 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$345Average$866FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$498Average$1,070FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$820Average$1,100FlexibilityNo cancel feeOn-time78%
Search Air New Zealand 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 Australia to Tonga?

When you search for this flight from Australia to Tonga, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Australia to Tonga.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Australia to Tonga, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from Australia to Tonga and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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