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Cheap flights from Australia to Tonga from $298

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
17 Mar — 24 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Tonga

Enter your travel dates to find the best prices.

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 15 February 2026.

Fri 13/314:00
SYD
-
TBU
1 stop9h 05m
Fiji Airways
Fri 20/305:40
TBU
-
SYD
1 stop8h 55m
Fiji Airways
Deal found 10/2$565
Fri 4/913:15
SYD
-
TBU
1 stop9h 30m
Fiji Airways
Tue 8/905:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 10/2$574
Tue 21/413:15
SYD
-
TBU
1 stop18h 20m
Fiji Airways
Tue 19/505:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 12/2$578
Tue 14/406:00
SYD
-
TBU
1 stop16h 45m
Fiji Airways
Tue 21/411:20
TBU
-
SYD
1 stop27h 45m
Fiji Airways
Deal found 13/2$583
Fri 28/813:15
SYD
-
TBU
1 stop9h 30m
Fiji Airways
Sat 5/911:20
TBU
-
SYD
1 stop13h 50m
Fiji Airways
Deal found 11/2$609
Wed 29/713:15
SYD
-
TBU
1 stop8h 50m
Fiji Airways
Tue 4/805:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 11/2$612
Fri 4/906:00
SYD
-
TBU
1 stop25h 35m
Fiji Airways
Fri 18/905:40
TBU
-
SYD
1 stop19h 30m
Fiji Airways
Deal found 14/2$613
Thu 3/913:15
SYD
-
TBU
1 stop8h 50m
Fiji Airways
Tue 15/905:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 14/2$615
Mon 27/706:00
SYD
-
TBU
1 stop16h 45m
Fiji Airways
Mon 3/811:20
TBU
-
SYD
1 stop13h 50m
Fiji Airways
Deal found 11/2$616
Fri 28/806:00
SYD
-
TBU
1 stop25h 35m
Fiji Airways
Thu 3/911:20
TBU
-
SYD
1 stop13h 50m
Fiji Airways
Deal found 12/2$624
Tue 17/206:00
SYD
-
TBU
1 stop26h 35m
Fiji Airways
Sat 14/316:00
TBU
-
SYD
1 stop8h 05m
Fiji Airways
Deal found 11/2$630
Thu 30/706:00
SYD
-
TBU
1 stop6h 55m
Fiji Airways
Sat 1/816:55
TBU
-
SYD
1 stop8h 15m
Fiji Airways
Deal found 11/2$641

Find flight deals from Australia to Tonga

Keep the following information in mind while searching for Australia to Tonga flight deals. Data was last updated 15 February 2026.

Round-trip from

$565

One-way from

$298

Popular in

December

Cheapest in

February

Average price

$706

Good round-trip deal

$747 or less

Good one-way deal

$397 or less
Fiji Airways
  • Fiji Airways
  • 13/3-20/3
  • 2 total stops
  • 18h 00m total
  • Australia to Tonga
Search Deals
Fiji Airways
  • Fiji Airways
  • 3/3
  • 1 total stop
  • 18h 35m total
  • Australia to Tonga
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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

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 15 February 2026.
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

Fri 13/3

14:00-01:05

1 stop9h 05m

Nuku‘alofa Fua'Amotu Intl

Fri 20/3

05:40-12:35

1 stop8h 55m

$565

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 21/4

13:15-10:35

1 stop18h 20m

Nuku‘alofa Fua'Amotu Intl

Tue 19/5

05:40-11:50

1 stop9h 10m

$578

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 12/5

13:15-01:05

1 stop8h 50m

Nuku‘alofa Fua'Amotu Intl

Fri 15/5

05:40-11:50

1 stop9h 10m

$630

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 30/3

14:15-01:50

1 stop9h 35m

Nuku‘alofa Fua'Amotu Intl

Mon 6/4

11:20-11:50

1 stop27h 30m

$641

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 4/3

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Thu 5/3

11:20-22:05

1 stop12h 45m

$664

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 4/3

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Tue 10/3

11:20-22:05

1 stop12h 45m

$664

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sun 1/3

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Wed 4/3

11:20-22:05

1 stop12h 45m

$664

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 3/3

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 10/3

11:20-22:05

1 stop12h 45m

$664

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 24/3

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 31/3

11:20-12:50

1 stop27h 30m

$677

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 1/5

13:15-15:55

1 stop23h 40m

Nuku‘alofa Fua'Amotu Intl

Tue 5/5

11:20-12:05

1 stop27h 45m

$682

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 58 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, October is the cheapest month in which you can book a flight from Australia to Tonga (average of $400). Flying from Australia to Tonga in December is currently the most expensive (average of $637). 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 15 February 2026.

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.

How often are flights from Australia to Tonga delayed?

About 51% of weekly flights between Australia and Tonga have experienced delays in the past year, with the average delay time being 96 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning 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 Australia to Tonga flights?

Over the past year, Qantas Airways have had the lowest number of delays on this route, with just 51% of flights being delayed.

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 15 February 2026.
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
225 reviews
Check prices

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
Fiji Airways
8.0
Very Good
225 reviews
Fiji Airways
8.0
Very Good
225 reviews
Check prices

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
Air New Zealand
8.0
Very Good
582 reviews
Fiji Airways
8.0
Very Good
225 reviews
Check prices

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍
Qantas Airways
7.5
Good
989 reviews
Fiji Airways
8.0
Very Good
225 reviews
Check prices

Entertainment

7.5

Food

7.5

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

8.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Feb 2026

SFO - NAN

Very friendly staff, warm service, well maintained aircraft, comfortable seats, and reliable on-time performance 👍👍

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 1,657 times in the past calendar month.

  • How long is the flight from Australia to Tonga?

    For as low as $565, Fiji Airways can have you in Tonga from Australia in 9h 05m. Airlines will cover a distance of 3584 km.

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

    $247 is the cheapest one-way deal found within the past few days, from Fiji Airways. You may also be able to find cheap deals on Qantas Airways and Air New Zealand, with prices starting from $342 and $407, respectively.

  • 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, October is the cheapest month in which you can book a flight from Australia to Tonga (average of $400). Flying from Australia to Tonga in December is currently the most expensive (average of $637). 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 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 15 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$471Average$875FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$580Average$1,123FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$801Average$982FlexibilityNo 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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