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

Return flights

16 Apr - 25 Apr	WestJet
13 Apr - 25 Apr	WestJet
11 Apr - 23 Apr	WestJet
10 Apr - 25 Apr	WestJet
19 Apr - 17 May	WestJet
19 Apr - 03 May	WestJet
21 Apr - 17 May	WestJet
12 Apr - 23 Apr	WestJet
01 Apr - 16 Apr	Porter Airlines (Canada) Ltd
04 Apr - 18 Apr	WestJet
13 Apr - 24 Apr	WestJet
18 Apr - 11 May	Porter Airlines (Canada) Ltd
07 Apr - 20 Apr	WestJet
10 Apr - 01 May	WestJet
02 Apr - 05 Apr	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Ottawa to Seoul 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 Ottawa to Seoul in April from 709€

Return flights