AirHint found the following cheapest return flights from Waterloo (YKF) to Seoul (ICN) in August 2025 (see full year).

Return flights

13 Aug - 04 Sep	WestJet
22 Aug - 13 Sep	WestJet
30 Aug - 07 Sep	WestJet
31 Aug - 04 Sep	WestJet
25 Aug - 12 Sep	WestJet
14 Aug - 04 Sep	WestJet
20 Aug - 02 Sep	WestJet
08 Aug - 15 Aug	Flair Airlines
29 Aug - 08 Sep	WestJet
30 Aug - 23 Sep	WestJet
20 Aug - 08 Sep	WestJet
10 Aug - 17 Aug	Flair Airlines
07 Aug - 14 Aug	WestJet
11 Aug - 18 Aug	WestJet
03 Aug - 14 Aug	WestJet
04 Aug - 14 Aug	WestJet
22 Aug - 28 Aug	WestJet
17 Aug - 23 Aug	WestJet
20 Aug - 25 Aug	WestJet
15 Aug - 28 Aug	WestJet

Also check the deals for one-way flights from Waterloo to Seoul in August.

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 Waterloo to Seoul in August from 872€

Return flights