Cheapest one-way flights from Sydney to Tongatapu in September from $244

AirHint found the following cheapest one-way flights from Sydney (SYD) to Tongatapu (TBU) in September 2025 (see full year).

One-Way flights

05 Sep Fiji Airways
09 Sep Fiji Airways
19 Sep Fiji Airways
02 Sep Fiji Airways
23 Sep Qantas direct
06 Sep Qantas direct
09 Sep Qantas direct
02 Sep Qantas direct
13 Sep Qantas direct
01 Sep Air New Zealand

Also check the deals for return flights from Sydney to Tongatapu in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Tongatapu

Cheap car rent in Tongatapu

Feel free to contact us with any feedback or request another flight research.