AirHint found the following cheapest one-way flights from Hong Kong (HKG) to Agana (GUM) in September 2025 (see full year).
One-Way flights
| 19 Sep | Jeju Air |
Also check the deals for return flights from Hong Kong 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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