AirHint found the following cheapest return flights from Ottawa (YOW) to Copenhagen (CPH) in May 2026 (see full year).

Return flights

26 May - 14 Jun	WestJet
26 May - 09 Jun	WestJet
26 May - 02 Jun	WestJet
22 May - 09 Jun	WestJet
25 May - 31 May	Porter Airlines (Canada) Ltd
29 May - 04 Jun	WestJet
30 May - 17 Jun	WestJet
25 May - 06 Jun	Porter Airlines (Canada) Ltd
27 May - 15 Jun	WestJet
21 May - 09 Jun	WestJet
01 May - 04 May	Condor

Also check the deals for one-way flights from Ottawa to Copenhagen in May.

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 Copenhagen in May from 493€

Return flights