AirHint found the following cheapest return flights from Cardiff (CWL) to Toronto (YYZ) in May 2026 (see full year).

Return flights

26 May - 07 Jun	WestJet	direct
26 May - 10 Jun	WestJet	direct
28 May - 08 Jun	WestJet	direct
25 May - 31 May	WestJet	direct
25 May - 01 Jun	WestJet	direct
25 May - 29 May	WestJet	direct
26 May - 01 Jun	WestJet	direct
28 May - 29 May	WestJet	direct
30 May - 01 Jun	WestJet	direct
26 May - 31 May	WestJet	direct
17 May - 24 May	Ryanair
23 May - 31 May	Ryanair
25 May - 28 May	WestJet
11 May - 25 May	Ryanair
23 May - 28 May	Ryanair
14 May - 21 May	KLM
27 May - 11 Jun	Air France
23 May - 08 Jun	WestJet	direct

Also check the deals for one-way flights from Cardiff to Toronto 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 Cardiff to Toronto in May from 390€

Return flights