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

Return flights

06 Jan - 12 Jan	T'way Air
03 Jan - 07 Jan	Eastar Jet
01 Jan - 08 Jan	T'way Air
16 Jan - 24 Jan	Air Busan
03 Jan - 11 Jan	Eastar Jet
11 Jan - 19 Jan	Air Busan
16 Jan - 18 Jan	Air Busan
08 Jan - 15 Jan	Korean Air
07 Jan - 12 Jan	Korean Air
06 Jan - 11 Jan	Korean Air
29 Jan - 03 Feb	Korean Air
31 Jan - 02 Feb	Korean Air
25 Jan - 01 Feb	Korean Air
24 Jan - 02 Feb	Korean Air
30 Jan - 04 Feb	Korean Air
31 Jan - 05 Feb	Korean Air
01 Jan - 01 Feb	Korean Air
31 Jan - 04 Feb	Korean Air
02 Jan - 01 Feb	Korean Air
31 Jan - 03 Feb	Korean Air

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

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.

Book a cheap hotel in Agana

Cheap car rent in Agana

Cheapest return flights from Seoul to Agana in January from 247€

Return flights