AirHint found the following cheapest one-way flights from Agana (GUM) to Seoul (ICN) in June 2026 (see full year).
One-Way flights
| 04 Jun | Jin Air | direct | |
| 23 Jun | Jin Air | direct | |
| 11 Jun | Jin Air | direct | |
| 18 Jun | Jin Air | direct | |
| 06 Jun | Korean Air | direct | |
| 07 Jun | Korean Air | direct |
Also check the deals for return flights from Agana to Seoul in June.
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