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Cheap flights from Australia to Tonga from $422

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — TBU
29 Jul — 5 Aug1
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 29 June 2026.

Fri 25/913:15
SYD
-
TBU
1 stop23h 40m
Fiji Airways
Thu 1/1011:20
TBU
-
SYD
1 stop14h 05m
Fiji Airways
Deal found 25/6$623
Tue 6/1014:15
SYD
-
TBU
1 stop8h 50m
Fiji Airways
Tue 20/1011:20
TBU
-
SYD
1 stop13h 05m
Fiji Airways
Deal found 27/6$626
Tue 6/1014:15
SYD
-
TBU
1 stop8h 50m
Fiji Airways
Fri 23/1005:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 27/6$634
Mon 7/1214:00
SYD
-
TBU
1 stop9h 50m
Fiji Airways
Tue 8/1211:20
TBU
-
SYD
1 stop27h 15m
Fiji Airways
Deal found 27/6$639
Mon 5/1014:15
SYD
-
TBU
1 stop9h 30m
Fiji Airways
Fri 23/1005:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 27/6$649
Mon 3/813:15
SYD
-
TBU
1 stop18h 20m
Multiple Airlines
Mon 24/816:50
TBU
-
SYD
2 stops29h 45m
Multiple Airlines
Deal found 28/6$655
Mon 9/1114:00
SYD
-
TBU
1 stop9h 50m
Fiji Airways
Wed 18/1105:40
TBU
-
SYD
1 stop8h 55m
Fiji Airways
Deal found 28/6$670
Fri 9/1006:05
SYD
-
TBU
1 stop10h 30m
Fiji Airways
Sat 24/1005:40
TBU
-
SYD
1 stop9h 10m
Fiji Airways
Deal found 27/6$674
Mon 5/1014:15
SYD
-
TBU
1 stop9h 30m
Fiji Airways
Sat 24/1011:20
TBU
-
SYD
1 stop27h 15m
Fiji Airways
Deal found 27/6$680
Tue 18/813:15
SYD
-
TBU
1 stop8h 50m
Fiji Airways
Tue 15/911:20
TBU
-
SYD
1 stop27h 30m
Fiji Airways
Deal found 24/6$690
Sun 8/1114:00
SYD
-
TBU
1 stop18h 35m
Fiji Airways
Wed 18/1111:20
TBU
-
SYD
1 stop12h 45m
Fiji Airways
Deal found 28/6$700
Tue 21/706:15
SYD
-
TBU
1 stop16h 30m
Fiji Airways
Tue 28/711:20
TBU
-
SYD
1 stop27h 30m
Fiji Airways
Deal found 24/6$706

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 29 June 2026.

Round-trip from

$623

One-way from

$422

Popular in

December

Cheapest in

February

Average price

$1,160

Good round-trip deal

$948 or less

Good one-way deal

$490 or less
Fiji Airways
  • Fiji Airways
  • 25/9-1/10
  • 2 total stops
  • 37h 45m total
  • Australia to Tonga
Search Deals
Qantas Airways
  • Qantas Airways
  • 18/8
  • Nonstop
  • 4h 25m total
  • Australia to Tonga
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($114 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 29 June 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 25/9

13:15-15:55

1 stop23h 40m

Nuku‘alofa Fua'Amotu Intl

Thu 1/10

11:20-22:25

1 stop14h 05m

$623

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 9/10

14:15-01:45

1 stop9h 30m

Nuku‘alofa Fua'Amotu Intl

Fri 23/10

05:40-12:50

1 stop9h 10m

$680

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 7/8

13:15-15:55

1 stop23h 40m

Nuku‘alofa Fua'Amotu Intl

Thu 13/8

05:00-22:15

2 stops20h 15m

$692

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Thu 12/11

14:00-10:00

1 stop18h 00m

Nuku‘alofa Fua'Amotu Intl

Tue 17/11

11:20-22:05

1 stop12h 45m

$700

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Thu 12/11

14:00-10:00

1 stop18h 00m

Nuku‘alofa Fua'Amotu Intl

Wed 18/11

11:20-22:05

1 stop12h 45m

$700

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 11/11

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Mon 16/11

11:20-12:35

1 stop27h 15m

$700

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sun 8/11

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Wed 18/11

11:20-22:05

1 stop12h 45m

$700

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 9/11

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Mon 16/11

11:20-12:35

1 stop27h 15m

$700

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 5/10

14:15-01:45

1 stop9h 30m

Nuku‘alofa Fua'Amotu Intl

Sat 10/10

05:40-12:50

1 stop9h 10m

$732

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Mon 3/8

13:15-10:35

1 stop18h 20m

Nuku‘alofa Fua'Amotu Intl

Mon 24/8

16:50-17:50

3 stops28h 00m

$768

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 51 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, August is the cheapest month in which you can book a flight from Australia to Tonga (average of $287). Flying from Australia to Tonga in December is currently the most expensive (average of $1,748). 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 29 June 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 55% of weekly flights between Australia and Tonga have experienced delays in the past year, with the average delay time being 100 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 55% of flights being delayed.

How far ahead should I book a flight from Australia to Tonga?

To ensure you get the cheapest price possible for a flight from Australia to Tonga, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 29 June 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
245 reviews
Check prices

Boarding

8.2

Food

7.5

Crew

8.6

Entertainment

7.5

Overall

8.1

Comfort

8.1

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
245 reviews
Fiji Airways
8.1
Very Good
245 reviews
Check prices

Boarding

8.2

Food

7.5

Crew

8.6

Entertainment

7.5

Overall

8.1

Comfort

8.1

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
646 reviews
Fiji Airways
8.1
Very Good
245 reviews
Check prices

Boarding

8.2

Food

7.5

Crew

8.6

Entertainment

7.5

Overall

8.1

Comfort

8.1

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
1,054 reviews
Fiji Airways
8.1
Very Good
245 reviews
Check prices

Boarding

8.2

Food

7.5

Crew

8.6

Entertainment

7.5

Overall

8.1

Comfort

8.1

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 1,416 times in the past calendar month.

  • How long is the flight from Australia to Tonga?

    For as low as $623, Fiji Airways can have you in Tonga from Australia in 23h 40m. Airlines will cover a distance of 3584 km.

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

    $288 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 $356 and $444, 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, August is the cheapest month in which you can book a flight from Australia to Tonga (average of $287). Flying from Australia to Tonga in December is currently the most expensive (average of $1,748). 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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Fiji AirwaysCheapest$457Average$1,014FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapest$617Average$1,343FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$736Average$1,097FlexibilityNo 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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