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Cheap flights from Australia to Tonga from $373

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

$646

One-way from

$373

Popular in

December

Cheapest in

August

Average price

$1,018

Good round-trip deal

$727 or less

Good one-way deal

$426 or less
Fiji Airways
  • Fiji Airways
  • 28/8-10/9
  • 2 total stops
  • 37h 50m total
  • Australia to Tonga
Search Deals
Fiji Airways
  • Fiji Airways
  • 3/9
  • 1 total stop
  • 8h 50m total
  • Australia to Tonga
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($98 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 13 June 2025.

Thu 28/813:15SYD - TBU
1 stop9h 30mFiji Airways
Wed 10/910:25TBU - SYD
1 stop28h 20mFiji Airways
Deal found 12/6$646
Tue 5/809:05SYD - TBU
Nonstop4h 20mMultiple Airlines
Tue 12/805:40TBU - SYD
1 stop9h 05mMultiple Airlines
Deal found 12/6$702
Sat 26/709:05SYD - TBU
Nonstop4h 20mQantas Airways
Sat 2/817:20TBU - SYD
Nonstop5h 45mQantas Airways
Deal found 11/6$772
Tue 15/711:40BNE - TBU
1 stop11h 05mFiji Airways
Tue 22/705:40TBU - BNE
1 stop7h 45mFiji Airways
Deal found 12/6$777
Thu 11/913:30MEL - TBU
1 stop8h 35mFiji Airways
Wed 17/910:25TBU - MEL
1 stop28h 35mFiji Airways
Deal found 12/6$783
Tue 15/711:40BNE - TBU
1 stop11h 05mMultiple Airlines
Tue 22/705:40TBU - BNE
2 stops29h 50mMultiple Airlines
Deal found 12/6$924
Thu 11/908:35MEL - TBU
2 stops13h 30mMultiple Airlines
Wed 17/910:25TBU - MEL
1 stop28h 35mMultiple Airlines
Deal found 12/6$1,009
Fri 26/918:55MEL - TBU
1 stop13h 15mAir New Zealand
Sat 11/1011:20TBU - MEL
1 stop11h 15mAir New Zealand
Deal found 12/6$1,041
Sat 19/709:55SYD - TBU
1 stop8h 40mAir New Zealand
Tue 29/712:20TBU - SYD
2 stops22h 55mAir New Zealand
Deal found 9/6$1,111
Tue 14/1006:00AVV - TBU
1 stop7h 25mMultiple Airlines
Tue 28/1016:45TBU - AVV
1 stop8h 30mMultiple Airlines
Deal found 12/6$1,125
Sat 11/1006:00MEL - TBU
1 stop7h 25mQantas Airways
Tue 28/1016:45TBU - MEL
1 stop8h 50mQantas Airways
Deal found 12/6$1,185
Fri 25/713:15SYD - VAV
1 stop18h 55mFiji Airways
Fri 1/817:20VAV - SYD
1 stop21h 55mFiji Airways
Deal found 10/6$1,676

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 13 June 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

Thu 28/8

13:15-01:45

1 stop9h 30m

Nuku‘alofa Fua'Amotu Intl

Wed 10/9

10:25-11:45

1 stop28h 20m

$646

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 5/8

09:05-16:25

Nonstop4h 20m

Nuku‘alofa Fua'Amotu Intl

Tue 12/8

05:40-11:45

1 stop9h 05m

$702

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sat 26/7

09:05-16:25

Nonstop4h 20m

Nuku‘alofa Fua'Amotu Intl

Sat 2/8

17:20-20:05

Nonstop5h 45m

$772

BrisbaneNuku‘alofa

BNE - TBU

BNETBU

Brisbane

Tue 15/7

11:40-01:45

1 stop11h 05m

Nuku‘alofa Fua'Amotu Intl

Tue 22/7

05:40-10:25

1 stop7h 45m

$777

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Thu 11/9

13:30-01:05

1 stop8h 35m

Nuku‘alofa Fua'Amotu Intl

Wed 17/9

10:25-12:00

1 stop28h 35m

$783

BrisbaneNuku‘alofa

BNE - TBU

BNETBU

Brisbane

Tue 15/7

11:40-01:45

1 stop11h 05m

Nuku‘alofa Fua'Amotu Intl

Tue 22/7

05:40-08:30

2 stops29h 50m

$924

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Thu 11/9

08:35-01:05

2 stops13h 30m

Nuku‘alofa Fua'Amotu Intl

Wed 17/9

10:25-12:00

1 stop28h 35m

$1,009

MelbourneNuku‘alofa

MEL - TBU

MELTBU

Melbourne

Fri 26/9

18:55-11:10

1 stop13h 15m

Nuku‘alofa Fua'Amotu Intl

Sat 11/10

11:20-20:35

1 stop11h 15m

$1,041

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sat 19/7

09:55-21:35

1 stop8h 40m

Nuku‘alofa Fua'Amotu Intl

Tue 29/7

12:20-08:15

2 stops22h 55m

$1,111

MelbourneNuku‘alofa

AVV - TBU

AVVTBU

Melbourne Avalon

Tue 14/10

06:00-15:25

1 stop7h 25m

Nuku‘alofa Fua'Amotu Intl

Tue 28/10

16:45-23:15

1 stop8h 30m

$1,125

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 22 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 $735). 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 13 June 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.

Rainfall in Tonga by month

Plan your trip to Tonga by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tonga ranges from 95.0 - 210.0 inches per month. February is typically the wettest month, when rainfall can reach 210.0 mm. June is typically the driest time to visit Tonga when rainfall is around 95.0 mm.

Temperature in Tonga by month

Plan your trip to Tonga by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tonga, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 22.0 C).

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 13 June 2025.
Read reviews from past customers who have flown Fiji Airways, Air New Zealand and Qantas Airways from Australia to Tonga. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.1
Very Good
194 reviews
Check prices

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Fiji Airways
8.1
Very Good
194 reviews
Fiji Airways
8.1
Very Good
194 reviews
Check prices

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Air New Zealand
8.0
Very Good
483 reviews
Fiji Airways
8.1
Very Good
194 reviews
Check prices

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Qantas Airways
7.5
Good
854 reviews
Fiji Airways
8.1
Very Good
194 reviews
Check prices

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

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 1,592 times in the past calendar month.

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

    $373 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 $421 and $479, 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, 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 $735). 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

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$344Average$861FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$497Average$1,067FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$815Average$1,275FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

Fly with Cheapflights

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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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