AirHint found the following cheapest return flights from Sydney (SYD) to Tongatapu (TBU) in August 2026 (see full year).
Return flights
| 18 Aug - 25 Aug | Fiji Airways | ||
| 04 Aug - 11 Aug | Fiji Airways | ||
| 18 Aug - 25 Aug | Qantas | direct | |
| 04 Aug - 11 Aug | Qantas | direct |
Also check the deals for one-way flights from Sydney to Tongatapu in August.
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