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Cheap flights from Sydney to Tonga from $420

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Tonga departing on 14/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Sydney to Tonga

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:10 - 15:45
SYD
-
TBU
4h 35mdirect
Multiple Airlines Logo
16:00 - 12:35
TBU
-
SYD
22h 35m1 stop
$734Multiple Airlines
Sat, 31 Jan - Sat, 14 Feb
Multiple Airlines Logo
07:45 - 20:20
SYD
-
TBU
10h 35m1 stop
Multiple Airlines Logo
11:20 - 12:35
TBU
-
SYD
27h 15m1 stop
$776Multiple Airlines
Sat, 7 Mar - Mon, 16 Mar
Qantas Airways Logo
09:10 - 15:45
SYD
-
TBU
4h 35mdirect
Qantas Airways Logo
16:55 - 20:15
TBU
-
SYD
5h 20mdirect
$782Qantas Airways
Sat, 31 Jan - Sat, 14 Feb
Multiple Airlines Logo
06:00 - 15:00
SYD
-
TBU
7h 00m1 stop
Multiple Airlines Logo
16:00 - 08:00
TBU
-
SYD
18h 00m2 stops
$793Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
07:45 - 20:20
SYD
-
TBU
10h 35m1 stop
Multiple Airlines Logo
05:40 - 12:35
TBU
-
SYD
8h 55m1 stop
$803Multiple Airlines
Sat, 7 Mar - Tue, 17 Mar
Multiple Airlines Logo
14:50 - 15:00
SYD
-
TBU
22h 10m1 stop
Multiple Airlines Logo
16:00 - 13:10
TBU
-
SYD
23h 10m2 stops
$807Multiple Airlines
Fri, 23 Jan - Thu, 29 Jan
Multiple Airlines Logo
14:00 - 10:35
SYD
-
TBU
18h 35m1 stop
Multiple Airlines Logo
05:00 - 22:15
TBU
-
SYD
19h 15m2 stops
$828Multiple Airlines
Wed, 25 Feb - Sat, 7 Mar
Multiple Airlines Logo
06:00 - 10:35
SYD
-
TBU
26h 35m1 stop
Multiple Airlines Logo
05:40 - 17:40
TBU
-
SYD
14h 00m2 stops
$838Multiple Airlines
Tue, 10 Feb - Tue, 24 Feb
Multiple Airlines Logo
06:00 - 10:35
SYD
-
TBU
26h 35m1 stop
Multiple Airlines Logo
05:40 - 22:15
TBU
-
SYD
18h 35m2 stops
$843Multiple Airlines
Tue, 10 Feb - Tue, 24 Feb
Multiple Airlines Logo
14:00 - 10:35
SYD
-
TBU
18h 35m1 stop
Multiple Airlines Logo
05:40 - 16:15
TBU
-
SYD
12h 35m2 stops
$844Multiple Airlines
Tue, 10 Feb - Tue, 24 Feb

Fiji Airways flights from Sydney to Tonga

Our best Fiji Airways deals on Sydney to Tonga flight tickets
Fiji Airways
12 Jan
SYD14:00Sydney Kingsford Smith
18h 35m
1 stop
TBU10:35Nuku‘alofa Fua'Amotu Intl
19 Jan
TBU11:20Nuku‘alofa Fua'Amotu Intl
12h 45m
1 stop
SYD22:05Sydney Kingsford Smith
$1,023
Find similar
Fiji Airways
14 Mar
SYD06:00Sydney Kingsford Smith
7h 00m
1 stop
TBU15:00Nuku‘alofa Fua'Amotu Intl
17 Mar
TBU05:40Nuku‘alofa Fua'Amotu Intl
8h 55m
1 stop
SYD12:35Sydney Kingsford Smith
$1,699
Find similar
Fiji Airways
14 Mar
SYD06:00Sydney Kingsford Smith
7h 00m
1 stop
TBU15:00Nuku‘alofa Fua'Amotu Intl
17 Mar
TBU05:40Nuku‘alofa Fua'Amotu Intl
18h 25m
1 stop
SYD22:05Sydney Kingsford Smith
$1,702
Find similar

Qantas Airways flights from Sydney to Tonga

Our best Qantas Airways deals on Sydney to Tonga flight tickets
Qantas Airways
31 Jan
SYD09:10Sydney Kingsford Smith
4h 35m
TBU15:45Nuku‘alofa Fua'Amotu Intl
14 Feb
TBU16:55Nuku‘alofa Fua'Amotu Intl
5h 20m
SYD20:15Sydney Kingsford Smith
$782
Find similar
Qantas Airways
6 Jan
SYD09:10Sydney Kingsford Smith
4h 35m
TBU15:45Nuku‘alofa Fua'Amotu Intl
10 Jan
TBU16:55Nuku‘alofa Fua'Amotu Intl
5h 20m
SYD20:15Sydney Kingsford Smith
$1,252
Find similar
Qantas Airways
30 Dec
SYD09:10Sydney Kingsford Smith
4h 35m
TBU15:45Nuku‘alofa Fua'Amotu Intl
8 Jan
TBU16:55Nuku‘alofa Fua'Amotu Intl
5h 20m
SYD20:15Sydney Kingsford Smith
$1,864
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Sydney 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, momondo users made 78,305 searches. Data last updated 16 December 2025.
Use the filters below to find and compare flights from Sydney to Tonga that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sat 31/1

09:10-15:45

Nonstop4h 35m

Nuku‘alofa Fua'Amotu Intl

Sat 14/2

16:00-12:35

1 stop22h 35m

$734

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sat 7/3

07:45-20:20

1 stop10h 35m

Nuku‘alofa Fua'Amotu Intl

Mon 16/3

11:20-12:35

1 stop27h 15m

$776

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sat 31/1

09:10-15:45

Nonstop4h 35m

Nuku‘alofa Fua'Amotu Intl

Sat 14/2

16:55-20:15

Nonstop5h 20m

$782

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 30/1

06:00-15:00

1 stop7h 00m

Nuku‘alofa Fua'Amotu Intl

Fri 6/2

16:00-08:00

2 stops18h 00m

$793

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Sat 7/3

07:45-20:20

1 stop10h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 17/3

05:40-12:35

1 stop8h 55m

$803

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Fri 23/1

14:50-15:00

1 stop22h 10m

Nuku‘alofa Fua'Amotu Intl

Thu 29/1

16:00-13:10

2 stops23h 10m

$806

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Wed 25/2

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Sat 7/3

05:00-22:15

2 stops19h 15m

$828

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 10/2

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 24/2

05:40-17:40

2 stops14h 00m

$838

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 10/2

06:00-10:35

1 stop26h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 24/2

05:40-22:15

2 stops18h 35m

$843

SydneyNuku‘alofa

SYD - TBU

SYDTBU

Sydney Kingsford Smith

Tue 10/2

14:00-10:35

1 stop18h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 24/2

05:40-16:15

2 stops12h 35m

$844

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Tonga from

How to get the cheapest flight ticket from Sydney to Tonga

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Tonga?

The month of May is another great option to travel to Tonga, with average flight prices from Sydney averaging around $761.

What is the cheapest day to depart on your flight to Tonga?

On average, the least expensive day to fly to Tonga from Sydney is on a Friday. momondo users have found tickets for Friday departures for as low as $803. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Sydney because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,227.

What is the cheapest time of day to depart on your flight to Tonga?

Flying to Tonga from Sydney at midday is the least expensive time of day to depart. momondo users have found prices as low as $747 when looking at flights departing at midday. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $986 on average. Flights to Tonga from Sydney in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Sydney Kingsford Smith to Tonga flight route?

Fly from Sydney Kingsford Smith to Nuku‘alofa Fua'Amotu Intl for the best Sydney Kingsford Smith - Tonga flight prices

How far in advance should I book a flight to Tonga?

You are more likely to see cheaper flights to Tonga from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Tonga for around $846 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tonga from Sydney for as low as $755 on momondo.

What cabin class options are available on Sydney Kingsford Smith to Tonga flights?

There are 3 cabin classes available to choose from on Sydney Kingsford Smith to Tonga flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sydney to Tonga flights?

No. A direct flight is the cheapest option for a flight between Sydney to Tonga.

Cheap Sydney to Tonga flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Tonga

Best price found

$496

Fastest flight time

4h 35m

Direct flights

Wed, Thu and Sun

Airports in Tonga

2 airports
The best one-way flight to Tonga from Sydney in the past 72 hours is $496. The best return flight deal from Sydney to Tonga found on momondo in the last 72 hours is $901.
The fastest flight from Sydney to Tonga takes 4h 35m
Direct flights go from Sydney to Tonga on Wednesday, Thursday and Sunday. Airline offering direct flights is Qantas Airways..
There are 2 airports in Tonga. From Sydney there are direct flights to Nuku‘alofa Fua'Amotu Intl (TBU).
Search flight deals

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Tonga?

    Prices for flights from Sydney Kingsford Smith Airport to Tonga refresh daily.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Tonga?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Tonga?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Tonga.

  • What documentation or ID do you need to fly to Tonga?

    The travel and health documents required for your trip to Tonga can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Tonga. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Sydney to Tonga?

Best airlines flying from Sydney to Tonga

Compare and see reviews for airlines that fly from Sydney to Tonga with momondo
Airline
Rating
Free cancellation
Price
Fiji AirwaysPriceFrom $513Free cancellationRating
8.1
210 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom $621Free cancellationRating
7.5
946 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $858Free cancellationRating
8.0
552 reviews
Search Air New Zealand flights

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Tonga?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sydney to Tonga. momondo saves you time and could save you money on your trip.

Can I find flights from Sydney to Tonga with flexible booking policies on momondo?

momondo does allow users to show only those flights to Tonga from Sydney which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sydney to Tonga?

momondo helps you find the best flight between Sydney and Tonga by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Sydney to Tonga right now. Can momondo alert me if prices change?

Price alerts on flights to Tonga from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Tonga trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Tonga

Popular Cities in Tonga

Popular flights according to clicks in the last 7 days on momondo
Look for other cheap flights to Nuku‘alofafrom $638
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