Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to Cardiff as you normally would.
Related info for your journey
Useful info, stats and facts about Ottawa to Cardiff flights.
YOW stands for Ottawa Airport, while CWL stands for Cardiff Wales Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.