$326 Find Cheap Flights from Sydney to Tonga

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Tonga departing on 23/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Sydney to Tonga

Cheapest return prices found by our users on KAYAK in the last 72 hours
Nuku‘alofa
Nuku‘alofa1 stop$611
Vava'u
Vava'u1 stop$1,095
Nuku‘alofa
Nuku‘alofa1 stop$611
Vava'u
Vava'u1 stop$1,095

Book Cheap Sydney to Tonga Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Tonga that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Tonga

Wed, 22 Jul - Wed, 5 Aug
Fiji Airways Logo
13:15 - 15:55
SYD
-
TBU
23h 40m
1 stop
Fiji Airways Logo
05:40 - 22:10
TBU
-
SYD
19h 30m
1 stop
$611Fiji Airways
Thu, 23 Jul - Thu, 30 Jul
Fiji Airways Logo
06:15 - 01:45
SYD
-
TBU
16h 30m
1 stop
Fiji Airways Logo
05:40 - 11:50
TBU
-
SYD
9h 10m
1 stop
$613Fiji Airways
Fri, 31 Jul - Fri, 7 Aug
Fiji Airways Logo
13:15 - 15:55
SYD
-
TBU
23h 40m
1 stop
Fiji Airways Logo
05:40 - 22:10
TBU
-
SYD
19h 30m
1 stop
$614Fiji Airways
Mon, 14 Sep - Thu, 17 Sep
Fiji Airways Logo
13:15 - 01:45
SYD
-
TBU
9h 30m
1 stop
Fiji Airways Logo
11:20 - 22:10
TBU
-
SYD
13h 50m
1 stop
$615Fiji Airways
Mon, 2 Nov - Tue, 17 Nov
Fiji Airways Logo
14:00 - 01:50
SYD
-
TBU
9h 50m
1 stop
Fiji Airways Logo
11:20 - 22:05
TBU
-
SYD
12h 45m
1 stop
$617Fiji Airways
Fri, 30 Oct - Wed, 18 Nov
Fiji Airways Logo
14:00 - 01:45
SYD
-
TBU
9h 45m
1 stop
Fiji Airways Logo
11:20 - 22:05
TBU
-
SYD
12h 45m
1 stop
$618Fiji Airways
Sun, 1 Nov - Tue, 17 Nov
Fiji Airways Logo
14:00 - 10:35
SYD
-
TBU
18h 35m
1 stop
Fiji Airways Logo
11:20 - 22:05
TBU
-
SYD
12h 45m
1 stop
$620Fiji Airways
Fri, 30 Oct - Sat, 14 Nov
Fiji Airways Logo
14:00 - 01:45
SYD
-
TBU
9h 45m
1 stop
Fiji Airways Logo
05:40 - 12:35
TBU
-
SYD
8h 55m
1 stop
$641Fiji Airways
Sat, 31 Oct - Tue, 17 Nov
Qantas Airways Logo
09:15 - 15:55
SYD
-
TBU
4h 40mdirect
Qantas Airways Logo
16:55 - 20:15
TBU
-
SYD
5h 20mdirect
$652Qantas Airways
Sun, 23 Aug - Mon, 31 Aug
Multiple Airlines Logo
13:15 - 11:10
SYD
-
VAV
18h 55m
1 stop
Multiple Airlines Logo
11:55 - 07:30
VAV
-
SYD
22h 35m
2 stops
$1,629Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Tonga flights

Get data-powered insights and trends into flights from Sydney to Tonga to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Sydney to Tonga flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Tonga from Sydney found in the last 72 hours was to Nuku‘alofa, at $749 return. The most popular route is from Sydney (SYD) to Nuku‘alofa (TBU), and the cheapest round-trip airline ticket found on this route in the last 5 days was $749.

What is the cheapest time of day to fly to Tonga?

The average price for all round-trip flights from Sydney to Tonga depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Tonga is generally in the morning, when retur flights cost $918 on average. The most expensive time of day to fly to Tonga is generally in the morning, which is peak travel time and where the average cost of a ticket is $918.

Can I save money by flying with a stopover from Sydney to Tonga?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,018, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Sydney to Tonga?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Tonga, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Tonga is August, when tickets cost $281 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is $2,100 and $2,090 respectively.

What’s the cheapest day of the week to fly from Sydney to Tonga?

The average price of all round-trip flights from Sydney to Tonga clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Sydney to Tonga, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Tonga, Tuesday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Tonga, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Sydney to Tonga, you should book around 2 weeks before departure, which saves you about 22% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$326
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (45% more expensive on average)
Flight from Sydney to Nuku‘alofa

FAQs - booking Tonga flights

  • How does KAYAK find such low prices on flights from Sydney to Tonga?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Tonga.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Tonga?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sydney to Tonga is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Tonga?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Sydney to Tonga with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Tonga?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sydney to Tonga up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Sydney to Tonga

 
Need help choosing which airline to fly with from Sydney to Tonga? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Fiji AirwaysOverall score based on 244 reviews
7.5Entertainment
8.2Boarding
8.5Crew
7.5Food
8.1Comfort
Airline reviews

Poor food options for vegi folks n not enough food quantity. Fiji really needs to improve on it. Flight crew is very warm and respectful but don’t know how to cater towards vegi folks n items despite so many Indians staying in Fiji

6.0 GoodNeeta, June 2026
NAN - DFW
Read more Fiji Airways reviews

Poor food options for vegi folks n not enough food quantity. Fiji really needs to improve on it. Flight crew is very warm and respectful but don’t know how to cater towards vegi folks n items despite so many Indians staying in Fiji

Roomy seats and crew is pleasant. Vegi food can be a lot better in terms choices. Inflight entertainment needs to have more options especially for 13+ hour flight. Very nice and warm blankets and seats are roomy than other A350 aircraft’s. Swift boarding and crew is pleasant to deal with.

Boarding had poor communication. Passengers didn't get clear directions to prepare for Boarding. The plane was an older model which had some issues with operating the seats (the staff was great). Due to age the seat cushions were compressed and less comfortable than expected.

I thought Fiji and Fiji Airways was great. Looking forward to the next trip. Baggage claim at the end went to sh...t

Fiji Airways always goes above and beyond. If anything I'd say the food was less enjoyable than in the past. But that in no way lessened the experience with the cabin crew or the excellent attentiveness and service they provided throughout the entire trip!

Left on time , arrived on time. Staff was awesome!!!!! Great flight!!!!

Great food, wonderful staff made a long flight seem short

Everything was great . Arrived on time was smooth plane was clean. Crew/Staff was friendly and helpful.

Everything from the staff to the comfort of business class was excellent. This is one of my new favorite airlines.

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

We got to experience Premium Economy from Sydney to Auckland and it was a great experience wiht Air New Zealand. The crew was friendly and helpful.

Great first time experience with ANZ. Such a great customer service. The crew was very friendly and welcoming

Great first time experience with Air New Zealand and loved it. The flight crew was extremely friendly and provided great service.

Great airline service by the staff. I highly recommend it

Needed more leg room. Leg rest and entertainment system box took up a lot of space and I'm not tall. Breakfast was good. Poor quality of the entertainment options.

My experience with Underpricer was not great. The representative assigned to me did not tell me beforehand that selecting seats, which i could not do through ANZ, WOULD ADD SIGNIFICANT cost to my ticket (all flight segments were reg economy seats. The seat selections for the ticket, MCI-AKL, AKL-PER, PER-MCI, cost $284 USD. I WAS NOT TOLD AHEAD OF SELECTING SEATS chosen by the rep OF THE COSTS and never received an itemized invoice of the seat selections.). The costs of seat selection, an option solicited as a service, with no mention of costs, should have been disclosed to me prior to seat selection and certaily should have been itemized. For all I know, the $284 was not referred from the airline but made up and taken directly by Underpricer. Next, when i checked in, united couldnt find my ticket. This is probably why i didnt get a seat selection on that flight and couldnt check in online, despite Underpricer prompts to do so a week before departure, or at the kiosk at the airport. I had to wait for special help at the counter, then was told that because the flight segment, MCI-IAH, operated by United Airlines via the ANZ. ticket, had changed schedule slightly since I BOOKED MY FLIGHT, the MCI-IAH segment had been decoupled from the rest of the ticket because the IAH layover was now 12.5 hrs AND DID NOT QUALIFY AS A THROUGH FLIGHT TO AKL.. This meant my checked bag could not be checked through to AKL and id have to pick it up at IAH, THEN WAIT MOST OF the long layover WITH the large checked bag until ANZ counter in IAH OPENED for checkING just prior to the flight. Apparently, although underpricer had notified me of schedule changes, they did not update the ANZ TICKET, leading to this problem. Finallly, although I RECHECKED TH BAG IN At IAH 3.5-4 hours before the scheduled departure and the IAH-AKL segment was a direct flight, ANZ LOST MY bag and it took 4 days to find it and get it to me. Not fun.

Appreciated the ability to get an earlier flight home after flying in from in from Japan. No problem with boarding or crew service. The limited choice of snacks, compared to previous years. Aircraft seats seem to be getting harder and more uncomfortable all the time. Overall, happy to be home

The Air New Zealand product is terrible, it's as expensive as a Jetstar ticket with add ons but with surely staff and old aircraft.

Great service. Food could be improved but overall a very good airline

Wonderful trip. Everyone from checking in to the gate to the flight itself was amazing - kind, helpful, and has a beautiful smile.

It was ok, but not what it was like 20 years ago

Great food and good entertainment options for the long flight.

It seems that qantas are trying hard to regain their status as Australia's premier airline. I only flew economy but happy with the service entertainment, food, configuration everything.

I never flew with alliance. Kayak is a joke and none of the flights or times were correct. Won’t ever use kayak again

I missed my flight due to unforeseen circumstances It was, however , an excellent price !

Loved the food and beverages available, spacious economy class, excellent entertainment

Very good overall. Highly recommend for all flying to Australia

Helpful staff when I felt unwell. Qantas need to have an audio/music channel so you can listen to various music/.artists

We had bulkhead seats in a A380 in the upper deck in seats 31 D and E. Storage was very limited other than in overhead bin - which is not within reach when in seat. Yet paying same price as others in premium economy who have a lot more storage within arm’s reach. Seems very unfair.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

Everything you need to know for your flight from Sydney to Tonga

Information on your arrival and departure airports