Cheap flights from Australia to Tonga from $405

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 27/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
4 Jan — 11 Jan1
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 5 December 2025.

Tue 9/1209:45SYD - TBU
1 stop21h 45mMultiple Airlines
Tue 16/1205:40TBU - SYD
1 stop18h 10mMultiple Airlines
Deal found 3/12$1,231
Tue 9/1209:10SYD - TBU
Nonstop4h 35mQantas Airways
Tue 16/1216:55TBU - SYD
Nonstop5h 20mQantas Airways
Deal found 3/12$1,441
Wed 31/1208:10SYD - TBU
2 stops28h 50mMultiple Airlines
Tue 6/105:40TBU - SYD
2 stops28h 20mMultiple Airlines
Deal found 4/12$1,464
Fri 5/1209:55SYD - TBU
1 stop8h 25mAir New Zealand
Tue 30/1221:35TBU - SYD
1 stop26h 10mAir New Zealand
Deal found 4/12$1,633
Tue 30/1206:00SYD - TBU
1 stop17h 50mMultiple Airlines
Tue 6/105:40TBU - SYD
2 stops28h 20mMultiple Airlines
Deal found 4/12$1,658
Sat 6/1206:00SYD - TBU
1 stop7h 00mFiji Airways
Tue 30/1205:00TBU - SYD
1 stop18h 50mFiji Airways
Deal found 4/12$1,677
Sat 6/1206:00SYD - VAV
1 stop8h 35mFiji Airways
Sat 13/1217:20VAV - SYD
1 stop22h 30mFiji Airways
Deal found 4/12$2,061
Sat 6/1206:00SYD - VAV
1 stop8h 35mMultiple Airlines
Sat 13/1217:20VAV - SYD
1 stop28h 35mMultiple Airlines
Deal found 4/12$2,098
Sat 6/1206:00SYD - VAV
1 stop8h 35mFiji Airways
Mon 15/1217:20VAV - SYD
1 stop30h 30mFiji Airways
Deal found 4/12$2,176
Sun 7/1214:50SYD - VAV
1 stop23h 45mFiji Airways
Sat 13/1217:20VAV - SYD
1 stop22h 30mFiji Airways
Deal found 4/12$2,232
Tue 9/1213:45MEL - TBU
1 stop17h 45mMultiple Airlines
Mon 15/1211:20TBU - MEL
2 stops24h 00mMultiple Airlines
Deal found 3/12$2,330
Fri 5/1214:00SYD - VAV
1 stop24h 35mFiji Airways
Mon 15/1217:20VAV - SYD
1 stop30h 30mFiji Airways
Deal found 4/12$2,396

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 5 December 2025.

Round-trip from

$767

One-way from

$405

Popular in

December

Cheapest in

March

Average price

$1,243

Good round-trip deal

$894 or less

Good one-way deal

$468 or less
25/2-12/3
  • 25/2-12/3
  • 3 total stops
  • 28h 25m total
  • Australia to Tonga
Fiji Airways
  • Fiji Airways
  • 27/3
  • 1 total stop
  • 9h 10m total
  • Australia to Tonga
Highest demand for flights based on searches. 10% potential increase in price ($147 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average return price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Australia to Tonga.
Price to beat on a one-way flight from Australia to Tonga.

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 5 December 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

Fri 27/2

06:00-15:00

1 stop7h 00m

Nuku‘alofa Fua'Amotu Intl

Tue 10/3

05:40-20:40

2 stops17h 00m

$780

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 23/1

14:00-15:00

1 stop23h 00m

Nuku‘alofa Fua'Amotu Intl

Fri 30/1

05:40-08:00

2 stops28h 20m

$798

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 27/2

06:00-15:00

1 stop7h 00m

Nuku‘alofa Fua'Amotu Intl

Wed 11/3

05:40-12:35

1 stop8h 55m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 23/2

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Mon 9/3

11:20-22:05

1 stop12h 45m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 25/2

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Mon 9/3

11:20-12:35

1 stop27h 15m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sun 22/2

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Thu 12/3

11:20-22:05

1 stop12h 45m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sun 22/2

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Mon 9/3

11:20-22:05

1 stop12h 45m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 24/2

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Mon 9/3

11:20-12:35

1 stop27h 15m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 23/2

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Wed 11/3

05:40-12:35

1 stop8h 55m

$802

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 25/2

14:00-01:50

1 stop9h 50m

Nuku‘alofa Fua'Amotu Intl

Wed 11/3

11:20-22:05

1 stop12h 45m

$802

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 42 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 $430). 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 5 December 2025.

One of the essential ways to save on airfare from Australia to Tonga is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.

What is the cheapest day to fly from Australia to Tonga?

Use this chart to determine the cheapest time to fly return from Australia to Tonga. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Australia to Tonga flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights from Australia to Tonga delayed?

About 45% 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 Saturday 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 45% 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 5 December 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.

Comfort

8.0

Overall

8.1

Boarding

8.2

Crew

8.5

Food

7.5

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

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

Comfort

8.0

Overall

8.1

Boarding

8.2

Crew

8.5

Food

7.5

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

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

Comfort

8.0

Overall

8.1

Boarding

8.2

Crew

8.5

Food

7.5

Entertainment

7.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

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

Comfort

8.0

Overall

8.1

Boarding

8.2

Crew

8.5

Food

7.5

Entertainment

7.5

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 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?

  • How long is the flight from Australia to Tonga?

    For as low as $802, Fiji Airways can have you in Tonga from Australia in 7h. Airlines will cover a distance of 3584 km.

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

    $270 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 $370 and $434, 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 $430). 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

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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$339Average$846FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$490Average$1,132FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$820Average$1,068FlexibilityNo 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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