Cheap Flights to Tongatapu Island from HK$1,968

View HK$1,968 flight on Tue, 21 Jul 2026Opens in a new window

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Cheap round-trip flights to Tongatapu Island

Prices were available within the past 7 days and start at HK$1,968 for one-way flights and HK$4,465 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qantas Airways
Sat, 8 Aug - Tue, 11 Aug
SYD
Sydney
TBU
Tongatapu Island
HK$4,465 Return, found 22 hours ago
HK$4,465
Return
found 22 hours ago
Select Qantas Airways flight, departing Sat, 8 Aug from Sydney to Tongatapu Island, returning Tue, 11 Aug, priced at HK$4,465 found 22 hours ago
Fiji Airways
Tue, 21 Jul - Sat, 25 Jul
SYD
Sydney
TBU
Tongatapu Island
HK$4,645 Return, found 22 hours ago
HK$4,645
Return
found 22 hours ago
Select Fiji Airways flight, departing Tue, 21 Jul from Sydney to Tongatapu Island, returning Sat, 25 Jul, priced at HK$4,645 found 22 hours ago
Qantas Airways
Sat, 8 Aug - Tue, 11 Aug
SYD
Sydney
TBU
Tongatapu Island
HK$4,848 Return, found 22 hours ago
HK$4,848
Return
found 22 hours ago
Select Qantas Airways flight, departing Sat, 8 Aug from Sydney to Tongatapu Island, returning Tue, 11 Aug, priced at HK$4,848 found 22 hours ago
Fiji Airways
Tue, 21 Jul - Sat, 25 Jul
SYD
Sydney
TBU
Tongatapu Island
HK$4,975 Return, found 22 hours ago
HK$4,975
Return
found 22 hours ago
Select Fiji Airways flight, departing Tue, 21 Jul from Sydney to Tongatapu Island, returning Sat, 25 Jul, priced at HK$4,975 found 22 hours ago
Air New Zealand
Tue, 21 Jul - Sat, 25 Jul
SYD
Sydney
TBU
Tongatapu Island
HK$5,898 Return, found 22 hours ago
HK$5,898
Return
found 22 hours ago
Select Air New Zealand flight, departing Tue, 21 Jul from Sydney to Tongatapu Island, returning Sat, 25 Jul, priced at HK$5,898 found 22 hours ago

Frequently asked questions

How do I find cheap flights to Tongatapu Island that have flexible change policies?
We know that travel plans can change very quickly, so reserving a flexible fare with Expedia is a wise idea. Just check the "No change fee" box underneath the "Flexible change policies" filter. Your low-cost, flexible flight to Tongatapu Island is just a few clicks away.
How can I find cheap tickets to Tongatapu Island?
In the last seven days, HK$4,465 was the lowest price for a flight to Tongatapu Island. If you want to save even more, book in advance and be flexible with your travel dates. Search for your journey to Tongatapu Island, then check out prices for nearby days by clicking on the "flexible dates" link above.
How much is a flight to Tongatapu Island?
In the last seven days, return airfares to Tongatapu Island sold for as little as HK$4,465 and reached a maximum price of HK$9,694. For one-way fares departing from Sydney (SYD), the cheapest seat during this same period was only HK$1,968.
When is the cheapest time to fly to Tongatapu Island?
Jet off on a Tuesday to boost your odds of getting the cheapest fare to Tongatapu Island. Mondays are usually the second most affordable day to take off. Saturday is generally the most expensive day to fly anywhere.
How much is a plane ticket to Tongatapu Island?
In the last seven days, plane tickets to Tongatapu Island fluctuated between HK$4,465 and HK$9,694. Prices tend to go up over time, so snap up a bargain today.
What months are the cheapest to book a flight to Tongatapu Island?
February is the ideal month to snap up a terrific deal to Tongatapu Island. Be aware that the costliest time to book a seat in the U.S. Isn't during the height of summer, but the month of December.

Travel information

Destination airport
Fua'amotu Intl.
Destination airport IATA code
TBU
Destination city name
Nuku'alofa
Return price
HK$4,465

Trending flights to Tongatapu Island

Prices were available within the past 7 days and start at HK$1,968 for one-way flights and HK$4,465 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fiji Airways
Tue, 23 Jun - Sat, 27 Jun
HKG
Hong Kong SAR
TBU
Tongatapu Island
HK$9,694 Return, found 3 days ago
HK$9,694
Return
found 3 days ago
Select Fiji Airways flight, departing Tue, 23 Jun from Hong Kong SAR to Tongatapu Island, returning Sat, 27 Jun, priced at HK$9,694 found 3 days ago
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