$373 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 3/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Tonga

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Best Tonga Flight Deals from Sydney

Cheapest return prices found by our users on KAYAK in the last 72 hours
Nuku‘alofa
Nuku‘alofa1 stop$634
Vava'u
Vava'u1 stop$1,825
Nuku‘alofa
Nuku‘alofa1 stop$634
Vava'u
Vava'u1 stop$1,825

Cheap Flights from Sydney to Tonga

 
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

Tue, 5 Aug - Tue, 12 Aug
Fiji Airways Logo
06:15 - 01:45SYD-TBU
16h 30m1 stop
Fiji Airways Logo
05:40 - 22:10TBU-SYD
19h 30m1 stop
$634Fiji Airways
Find Deal
Tue, 19 Aug - Sat, 18 Oct
Fiji Airways Logo
13:15 - 09:25SYD-TBU
17h 10m1 stop
Fiji Airways Logo
16:55 - 12:45TBU-SYD
21h 50m1 stop
$640Fiji Airways
Find Deal
Thu, 28 Aug - Wed, 10 Sep
Fiji Airways Logo
13:15 - 01:45SYD-TBU
9h 30m1 stop
Fiji Airways Logo
10:25 - 11:45TBU-SYD
28h 20m1 stop
$646Fiji Airways
Find Deal
Tue, 5 Aug - Mon, 18 Aug
Fiji Airways Logo
13:15 - 01:45SYD-TBU
9h 30m1 stop
Fiji Airways Logo
18:20 - 11:45TBU-SYD
20h 25m1 stop
$652Fiji Airways
Find Deal
Tue, 5 Aug - Tue, 12 Aug
 Logo
09:05 - 16:25SYD-TBU
4h 20mdirect
 Logo
05:40 - 11:45TBU-SYD
9h 05m1 stop
Sat, 26 Jul - Sat, 2 Aug
 Logo
09:05 - 16:25SYD-TBU
4h 20mdirect
 Logo
16:45 - 11:45TBU-SYD
22h 00m1 stop
Sat, 26 Jul - Sat, 2 Aug
Qantas Airways Logo
09:05 - 16:25SYD-TBU
4h 20mdirect
Qantas Airways Logo
17:20 - 20:05TBU-SYD
5h 45mdirect
$772Qantas Airways
Find Deal
Tue, 5 Aug - Tue, 12 Aug
Qantas Airways Logo
09:05 - 16:25SYD-TBU
4h 20mdirect
Qantas Airways Logo
17:20 - 20:05TBU-SYD
5h 45mdirect
$798Qantas Airways
Find Deal
Thu, 3 Jul - Wed, 9 Jul
Air New Zealand Logo
18:20 - 11:10SYD-TBU
13h 50m1 stop
Air New Zealand Logo
14:35 - 21:40TBU-SYD
10h 05m1 stop
$1,856Air New Zealand
Find Deal
Sat, 5 Jul - Thu, 10 Jul
Air New Zealand Logo
06:00 - 21:35SYD-TBU
12h 35m2 stops
Air New Zealand Logo
12:20 - 21:40TBU-SYD
12h 20m1 stop
$2,591Air New Zealand
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Sydney to Tonga.

The cheapest ticket to Tonga from Sydney found in the last 72 hours was to Nuku‘alofa, at $617 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 72 hours was $617.

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 $1,378, 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 $755 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is $1,138 and $1,018 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 Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Tonga, Monday is the cheapest day to fly and Friday 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 the flight from Sydney to Tonga, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.


Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$373
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly (57% 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.

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

    The cheapest time of day to fly to Tonga is generally in the afternoon, when retur flights cost $497 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Tonga is generally at night, which is peak travel time and where the average cost of a ticket is $655.

Top 3 airlines serving 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 194 reviews
7.5Entertainment
8.2Boarding
7.5Food
8.5Crew
8.1Comfort
Airline reviews

.very good and as I needed wheelchair assistance all staff excellent.. only suggestion is get rid of those plastic chairs hard to ride in and staff have trouble compared to others. Everything else very good experience. Will use Fiji Air again.

8.0 ExcellentGrant, May 2025NAN - AKL
Read more Fiji Airways reviews

.very good and as I needed wheelchair assistance all staff excellent.. only suggestion is get rid of those plastic chairs hard to ride in and staff have trouble compared to others. Everything else very good experience. Will use Fiji Air again.

In-flight entertainment options could use a refresh, Consider a tie-up with Spotify for more current music and with IMDB or other service for newer selections/movie ratings.

See previous comments. Didn’t take this flight because my other flight was so delayed. Ending up on two other flights as a result and was more than a day late.

6 hour delay and they didnt try to make up any time during an over 10 hour flight

Very good; seat made ready for bed after meal, a plus since one airline covered the seat at the start.

Entertainment was not good. Seems like liquor should’ve been advertised only beer and wine was even though I saw others getting liquor didn’t realize I could. And the food to me could’ve been a little bit.

Food choices perhaps not the best. Only offered beer and wine, when it appeared other liquor was available. Entertainment wasn’t so good.

They charged me over a $1000 dollars to bring two surfboard bags as check baggage. Inappropriate and I would avoid flying sgain

The experience on Fiji Airways was absolutely amazing. Streamlined. All staff was amazing. Pleasant. Friendly. Extremely helpful.

Business class Seats on the A350 from Nan to YVR were wonderful. The flight crew was okay but could do with better training. Toilets were clean but ran out of paper towels towards the end of the flight. The food/menu and the wine offered really needs considerable improvement. Dinner options were either Bolani, a beef sandwich (even this could be made much better), or paneer butter masala. Unfortunately, if you are not a fan of Fijian food, there isn’t much choice. Dessert was either turmeric ice cream or fruits but unfortunately, they were out of fruit! So the only option was turmeric ice cream. I’m not certain how many passengers like turmeric but I am not one of them. They need to cater to a more diverse group of people. Perhaps they need a new chef? The movies& tv shows were mostly older so I didn’t find that interesting either. It was however, fun to view the plane’s exterior cameras as we take off and land. The best thing about this flight are the business class seats.

The business class upgrade meant a good sleep on the way home after a long week away. Excellent service, great food, and comfortable seat/bed for the journey.

I love the “boarding from the back” idea - it’s so much better than the “Zones” idea that many others use. Also, the inflight wifi was a first for me! Very nice to have on a 13-hour flight!

Again, Air New Zealand was great. They kept bathrooms clean, food was actually very good, New Zealand wines a big hit

The issue was with getting our boarding pases. There were issues with our arrangements that were made through Kayak. I am sorry to say that we will not use you again because of this. The flight itself was good and the flight attendants excellent.

It was good for a short domestic flight. As no food ar entertainment provided, there should be a n/a rating available for those.

USB charging ports did not work on any of Air New Zealand flights

Economy was much nicer on the Air New Zealand planes.

At Coolangatta International it is difficult to hear voice boarding announcements when away from screen announcements.

Everything was fine. Wish the wifi was free and included in the ticket price.

Nothing special short flight - all good - difference between 1 fudge and 2 fudge is obligation and thankfulness

Traditional economy class. Not a full flight so spare seats. Food and drinks were good

Was bumped to a later flight because of inefficiency on part of the airline.

Inflight entertainment, poor that there are no headrest screens on aircraft used for an international flight.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Touch screens were very difficult to use, generally being laggy and unresponsive- it was quite an art to get it to play the thing you wanted rather than some thing at random. Selection of films and Tv was good when touchscreen decided to finally respond.

Their aircraft are old and amenities lack way behind other international carriers leaving from BNE. Even in economy

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.