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Cheap flights from Australia to Tonga from $305

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
17 May — 24 May1
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 17 April 2026.

Fri 29/506:00
SYD
-
TBU
1 stop6h 55m
Fiji Airways
Fri 5/605:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 14/4$572
Wed 13/513:15
SYD
-
TBU
1 stop18h 20m
Fiji Airways
Wed 20/511:20
TBU
-
SYD
1 stop13h 50m
Fiji Airways
Deal found 15/4$574
Mon 18/513:15
SYD
-
TBU
1 stop9h 30m
Fiji Airways
Fri 22/505:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 12/4$576
Tue 19/513:15
SYD
-
TBU
1 stop18h 20m
Fiji Airways
Sat 30/516:55
TBU
-
SYD
1 stop8h 15m
Fiji Airways
Deal found 15/4$580
Mon 27/706:00
SYD
-
TBU
1 stop16h 45m
Fiji Airways
Sat 1/816:55
TBU
-
SYD
1 stop23h 15m
Fiji Airways
Deal found 15/4$594
Thu 28/513:15
SYD
-
TBU
1 stop9h 30m
Fiji Airways
Thu 4/611:20
TBU
-
SYD
1 stop13h 50m
Fiji Airways
Deal found 13/4$595
Tue 19/506:00
SYD
-
TBU
1 stop25h 35m
Fiji Airways
Tue 26/505:40
TBU
-
SYD
1 stop19h 30m
Fiji Airways
Deal found 13/4$601
Tue 5/513:15
SYD
-
TBU
1 stop18h 20m
Fiji Airways
Mon 11/511:20
TBU
-
SYD
1 stop13h 50m
Fiji Airways
Deal found 12/4$650
Thu 8/1011:55
BNE
-
TBU
1 stop10h 50m
Fiji Airways
Sat 17/1005:00
TBU
-
BNE
1 stop8h 40m
Fiji Airways
Deal found 17/4$683
Tue 28/420:15
MEL
-
TBU
2 stops35h 20m
Multiple Airlines
Fri 1/516:55
TBU
-
MEL
1 stop22h 05m
Multiple Airlines
Deal found 13/4$708
Thu 10/913:30
MEL
-
TBU
1 stop9h 15m
Fiji Airways
Wed 16/905:00
TBU
-
MEL
1 stop10h 25m
Fiji Airways
Deal found 15/4$747
Fri 18/913:30
MEL
-
TBU
1 stop23h 25m
Fiji Airways
Sat 26/905:40
TBU
-
MEL
1 stop9h 20m
Fiji Airways
Deal found 14/4$797

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 17 April 2026.

Round-trip from

$572

One-way from

$305

Popular in

December

Cheapest in

February

Average price

$779

Good round-trip deal

$868 or less

Good one-way deal

$448 or less
Fiji Airways
  • Fiji Airways
  • 29/5-5/6
  • 2 total stops
  • 16h 05m total
  • Australia to Tonga
Search Deals
Fiji Airways
  • Fiji Airways
  • 15/9
  • 1 total stop
  • 25h 35m total
  • Australia to Tonga
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 17 April 2026.
Use the filters below to find and compare flights from Australia to Tonga that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 4/9

06:00-01:45

1 stop16h 45m

Nuku‘alofa Fua'Amotu Intl

Mon 7/9

11:20-22:10

1 stop13h 50m

$669

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sun 16/8

13:15-10:35

1 stop18h 20m

Nuku‘alofa Fua'Amotu Intl

Thu 20/8

11:20-11:50

1 stop27h 30m

$679

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 2/6

09:05-16:30

Nonstop4h 25m

Nuku‘alofa Fua'Amotu Intl

Tue 9/6

11:20-22:10

1 stop13h 50m

$682

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 15/5

06:20-15:55

2 stops30h 35m

Nuku‘alofa Fua'Amotu Intl

Fri 22/5

05:40-22:10

1 stop19h 30m

$746

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 19/5

09:05-16:30

Nonstop4h 25m

Nuku‘alofa Fua'Amotu Intl

Tue 26/5

05:40-22:10

1 stop19h 30m

$768

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Fri 18/9

08:35-21:40

1 stop10h 05m

Nuku‘alofa Fua'Amotu Intl

Sat 26/9

05:40-12:00

1 stop9h 20m

$824

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Tue 28/4

13:25-10:35

1 stop18h 10m

Nuku‘alofa Fua'Amotu Intl

Fri 1/5

16:55-12:00

1 stop22h 05m

$843

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Fri 11/9

13:30-10:35

1 stop18h 05m

Nuku‘alofa Fua'Amotu Intl

Tue 15/9

11:20-12:25

1 stop28h 05m

$880

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Fri 28/8

13:30-01:45

1 stop9h 15m

Nuku‘alofa Fua'Amotu Intl

Tue 1/9

11:20-12:25

1 stop28h 05m

$881

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Thu 10/9

13:30-01:45

1 stop9h 15m

Nuku‘alofa Fua'Amotu Intl

Thu 17/9

05:00-12:00

1 stop10h 00m

$891

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 43 resultsSorted by cheapest first
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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, June is the cheapest month in which you can book a flight from Australia to Tonga (average of $347). Flying from Australia to Tonga in December is currently the most expensive (average of $1,429). 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 17 April 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 58% of weekly flights between Australia and Tonga have experienced delays in the past year, with the average delay time being 98 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 58% 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 17 April 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
8.1
Very Good
240 reviews
Check prices

Comfort

8.1

Entertainment

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.5

Reviews

1 / 19
8.0
Excellent

Paul,Mar 2026

YVR - NAN

Flown with Fiji Airways before they have always been good. The crew are very friendly and attentive. The seats in economy are in the small side but good. Another happy flight with them.
Fiji Airways
8.1
Very Good
240 reviews
Fiji Airways
8.1
Very Good
240 reviews
Check prices

Comfort

8.1

Entertainment

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.5

Reviews

1 / 19
8.0
Excellent

Paul,Mar 2026

YVR - NAN

Flown with Fiji Airways before they have always been good. The crew are very friendly and attentive. The seats in economy are in the small side but good. Another happy flight with them.
Air New Zealand
8.0
Very Good
630 reviews
Fiji Airways
8.1
Very Good
240 reviews
Check prices

Comfort

8.1

Entertainment

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.5

Reviews

1 / 19
8.0
Excellent

Paul,Mar 2026

YVR - NAN

Flown with Fiji Airways before they have always been good. The crew are very friendly and attentive. The seats in economy are in the small side but good. Another happy flight with them.
Qantas Airways
7.5
Good
1,019 reviews
Fiji Airways
8.1
Very Good
240 reviews
Check prices

Comfort

8.1

Entertainment

7.5

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.5

Reviews

1 / 19
8.0
Excellent

Paul,Mar 2026

YVR - NAN

Flown with Fiji Airways before they have always been good. The crew are very friendly and attentive. The seats in economy are in the small side but good. Another happy flight with them.

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 1,531 times in the past calendar month.

  • How long is the flight from Australia to Tonga?

    For as low as $669, Fiji Airways can have you in Tonga from Australia in 16h 45m. Airlines will cover a distance of 3584 km.

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

    $256 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 $401, 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, June is the cheapest month in which you can book a flight from Australia to Tonga (average of $347). Flying from Australia to Tonga in December is currently the most expensive (average of $1,429). 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$435Average$919FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$575Average$1,048FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$707Average$1,004FlexibilityNo 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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