Cheapest return flights from Sydney to Tongatapu in May from $426

AirHint found the following cheapest return flights from Sydney (SYD) to Tongatapu (TBU) in May 2026 (see full year).

Return flights

11 May - 16 May Fiji Airways
05 May - 02 Jun Fiji Airways
15 May - 22 May Fiji Airways
02 May - 02 Jun Qantas
09 May - 15 May Air New Zealand

Also check the deals for one-way flights from Sydney to Tongatapu in May.

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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.

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