AirHint found the following cheapest return flights from Beijing (PEK) to Cheju (CJU) in October 2025 (see full year).

Return flights

09 Oct - 13 Oct	Jeju Air	direct
14 Oct - 15 Oct	Jeju Air	direct
07 Oct - 13 Oct	Jeju Air	direct
20 Oct - 22 Oct	Korean Air	direct
31 Oct - 09 Nov	Korean Air	direct
29 Oct - 02 Nov	Korean Air	direct
08 Oct - 12 Oct	Air China	direct
25 Oct - 29 Oct	Korean Air	direct
31 Oct - 03 Nov	Korean Air	direct
06 Oct - 11 Oct	Air China
08 Oct - 11 Oct	Air China
29 Oct - 01 Nov	Korean Air
06 Oct - 17 Oct	Korean Air
07 Oct - 11 Oct	Jeju Air
30 Oct - 04 Nov	Asiana Airlines

Also check the deals for one-way flights from Beijing to Cheju in October.

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 Beijing to Cheju in October from 138€

Return flights