Cheapest return flights from Sydney to Tongatapu in July from $398
AirHint found the following cheapest return flights from Sydney (SYD) to Tongatapu (TBU) in July 2025 (see full year).
Return flights
Also check the deals for one-way flights from Sydney to Tongatapu in July.
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.
