AirHint found the following cheapest return flights from Seoul (ICN) to Agana (GUM) in April 2026 (see full year).

Return flights

16 Apr - 20 Apr	Korean Air	direct
21 Apr - 24 Apr	Korean Air	direct
17 Apr - 21 Apr	Korean Air	direct
14 Apr - 17 Apr	Korean Air	direct
22 Apr - 26 Apr	Korean Air	direct
23 Apr - 25 Apr	Korean Air	direct
15 Apr - 19 Apr	Korean Air	direct
29 Apr - 03 May	Korean Air	direct
30 Apr - 04 May	Korean Air	direct

Also check the deals for one-way flights from Seoul to Agana in April.

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 Seoul to Agana in April from 265€

Return flights