AirHint found the following cheapest return flights from Taipei (TPE) to Agana (GUM) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep	Scoot
17 Sep - 24 Sep	Tigerair Taiwan
15 Sep - 19 Sep	Tigerair Taiwan
08 Sep - 11 Sep	Tigerair Taiwan
15 Sep - 23 Sep	Tigerair Taiwan
23 Sep - 25 Sep	Scoot
20 Sep - 24 Sep	Tigerair Taiwan
01 Sep - 09 Sep	Tigerair Taiwan
09 Sep - 11 Sep	Tigerair Taiwan
21 Sep - 26 Sep	Tigerair Taiwan
27 Sep - 05 Oct	Philippine Airlines
24 Sep - 01 Oct	Philippine Airlines
26 Sep - 11 Oct	Philippine Airlines
27 Sep - 01 Oct	Philippine Airlines
24 Sep - 02 Oct	Tigerair Taiwan
29 Sep - 02 Oct	Tigerair Taiwan

Also check the deals for one-way flights from Taipei to Agana in September.

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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Cheapest return flights from Taipei to Agana in September from $292

Return flights