AirHint found the following cheapest return flights from Ottawa (YOW) to Cardiff (CWL) in June 2026 (see full year).

Return flights

03 Jun - 10 Jun	WestJet
03 Jun - 11 Jun	WestJet
03 Jun - 21 Jun	WestJet
03 Jun - 30 Jun	WestJet
21 Jun - 06 Jul	WestJet
01 Jun - 08 Jun	WestJet
02 Jun - 16 Jun	WestJet
02 Jun - 09 Jun	WestJet
09 Jun - 23 Jun	WestJet
23 Jun - 14 Jul	WestJet
16 Jun - 30 Jun	WestJet
16 Jun - 07 Jul	WestJet
10 Jun - 24 Jun	WestJet
24 Jun - 15 Jul	WestJet
17 Jun - 01 Jul	WestJet
17 Jun - 08 Jul	WestJet
30 Jun - 13 Jul	WestJet
25 Jun - 19 Jul	WestJet

Also check the deals for one-way flights from Ottawa to Cardiff in June.

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 Cardiff in June from $482

Return flights