AirHint found the following cheapest return flights from Waterloo (YKF) to Seoul (ICN) in September 2026 (see full year).
Return flights
| 01 Sep - 21 Sep | WestJet | ||
| 18 Sep - 05 Oct | WestJet | ||
| 21 Sep - 26 Sep | WestJet | ||
| 27 Sep - 17 Oct | WestJet |
Also check the deals for one-way flights from Waterloo to Seoul in September.
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