Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cardiff to London, Ontario as you normally would.
Information is based on travel restrictions from Cardiff Wales to London
Most visitors from Cardiff Wales need to provide a negative COVID-19 test result and/or quarantine to enter London.
COVID-19 testing requirements
Visitors from Cardiff Wales must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to London.
Quarantine requirements
Visitors from Cardiff Wales are not required to quarantine after entering London.
Returning to Cardiff Wales from London
COVID-19 testing requirements
Visitors from London are not required to present a negative COVID-19 PCR test or antigen result upon entering Cardiff Wales.
Quarantine requirements
Visitors from London are not required to quarantine after entering Cardiff Wales.