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Cheap flights from Tonga to Australia from $375

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
TBU — SYD
8 Mar — 15 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Tonga to Australia

Enter your travel dates to find the best prices.

Cheapest flights from Tonga to Australia
Explore the most affordable flight options available from Tonga to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 February 2026.

Fri 6/305:40
TBU
-
SYD
1 stop8h 55m
Fiji Airways
Fri 29/506:00
SYD
-
TBU
1 stop6h 55m
Fiji Airways
Deal found 4/2$580
Fri 6/316:00
TBU
-
SYD
2 stops18h 00m
Multiple Airlines
Fri 29/513:15
SYD
-
TBU
1 stop23h 40m
Multiple Airlines
Deal found 4/2$815
Thu 26/211:20
TBU
-
SYD
1 stop27h 15m
Multiple Airlines
Sat 28/221:30
SYD
-
TBU
2 stops35h 05m
Multiple Airlines
Deal found 5/2$883
Thu 19/221:35
TBU
-
SYD
1 stop13h 10m
Air New Zealand
Sat 28/209:55
SYD
-
TBU
1 stop8h 25m
Air New Zealand
Deal found 4/2$1,022
Thu 19/211:20
TBU
-
SYD
2 stops27h 50m
Multiple Airlines
Sat 28/209:55
SYD
-
TBU
1 stop8h 25m
Multiple Airlines
Deal found 4/2$1,088

Find flight deals from Tonga to Australia

Keep the following information in mind while searching for Tonga to Australia flight deals. Data was last updated 6 February 2026.

Round-trip from

$580

Popular in

January

Cheapest in

October

Average price

$862

Good one-way deal

$495 or less
Fiji Airways
  • Fiji Airways
  • 6/3-29/5
  • 2 total stops
  • 15h 50m total
  • Tonga to Australia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a one-way flight from Tonga to Australia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Tonga to Australia 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 6 February 2026.
Use the filters below to find and compare flights from Tonga to Australia that are best for you.

Fly from

Tonga

Fly to

Australia

Route

Depart

Return

Price

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Fri 6/3

05:40-12:35

1 stop8h 55m

Sydney Kingsford Smith

Fri 29/5

06:00-15:55

1 stop6h 55m

$580

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Fri 13/3

16:00-22:05

1 stop8h 05m

Sydney Kingsford Smith

Fri 22/5

06:00-15:55

1 stop6h 55m

$580

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Fri 6/3

16:00-08:00

2 stops18h 00m

Sydney Kingsford Smith

Fri 29/5

13:15-15:55

1 stop23h 40m

$815

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Fri 13/3

16:00-08:00

2 stops18h 00m

Sydney Kingsford Smith

Fri 22/5

06:00-15:55

1 stop6h 55m

$817

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Thu 26/2

11:20-22:05

1 stop12h 45m

Sydney Kingsford Smith

Sat 28/2

09:55-20:20

1 stop8h 25m

$818

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Thu 19/2

21:35-08:45

1 stop13h 10m

Sydney Kingsford Smith

Sat 28/2

09:55-20:20

1 stop8h 25m

$1,022

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Thu 19/2

11:20-13:10

2 stops27h 50m

Sydney Kingsford Smith

Sat 28/2

09:55-20:20

1 stop8h 25m

$1,088

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 18/7

05:40-15:55

2 stops13h 15m

$375

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 18/7

11:55-21:50

1 stop12h 55m

$629

Nuku‘alofaSydney

TBU - SYD

TBUSYD

Nuku‘alofa Fua'Amotu Intl

Sat 18/7

17:25-20:05

Nonstop5h 40m

$660

Flights are sorted by cheapest return flights first.

Deals found on 6/2

Best time to book a flight from Tonga to Australia

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

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

Currently, February is the cheapest month in which you can book a flight from Tonga to Australia (average of $382). Flying from Tonga to Australia in January is currently the most expensive (average of $858). 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 AU?

Find hourly flight availability from Tonga to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 February 2026.

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

How often are flights from Tonga to Australia delayed?

About 32% of weekly flights between Tonga and Australia have experienced delays in the past year, with the average delay time being 92 minutes.

What is the most punctual flight time for Tonga to Australia flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Tonga to Australia flights?

Over the past year, Qantas Airways have had the lowest number of delays on this route, with just 32% of flights being delayed.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated 6 February 2026.
See what other customers who have flown with Fiji Airways, Air New Zealand, andQantas Airways from Tonga to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.0
Very Good
223 reviews
Check prices

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

8.0

Entertainment

7.5

Food

7.4

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very Good
223 reviews
Fiji Airways
8.0
Very Good
223 reviews
Check prices

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

8.0

Entertainment

7.5

Food

7.4

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air New Zealand
8.0
Very Good
580 reviews
Fiji Airways
8.0
Very Good
223 reviews
Check prices

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

8.0

Entertainment

7.5

Food

7.4

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
987 reviews
Fiji Airways
8.0
Very Good
223 reviews
Check prices

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

8.0

Entertainment

7.5

Food

7.4

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Related info for your journey

Find useful and relevant information for your journey from Tonga to Australia. 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 Tonga to Australia flight route?

    This flight path from Tonga to Australia was viewed by 92 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Tonga to Australia?

    A quick flight from Tonga to Australia can take about 8h 55m. Fiji Airways provides one of the quickest options available for as low as $580. Tonga and Australia are separated by a distance of 3584 km.

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

    To fly one-way, consider booking your trip with Fiji Airways, which is currently one of the cheapest options available, starting at $247. Qantas Airways flights start at $377 while deals on Air New Zealand start at $437 one-way.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Tonga to Australia (average of $382). Flying from Tonga to Australia in January is currently the most expensive (average of $858). 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

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

Top 3 airlines flying from Tonga to Australia

Discover the top 3 airlines that operate flights from Tonga to Australia. 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 6 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$435Average$833FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$739Average$866FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$930Average$1,063FlexibilityNo 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 Tonga to Australia?

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 Australia from Tonga today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Tonga to Australia for you. Better yet — we are completely free to use.

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

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

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

Yes, Cheapflights offers price alerts on Tonga to Australia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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