Cheap Flights from Cardiff to Brussels

FAQ

• When is the best time to book flights from Cardiff to Brussels?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Cardiff to Brussels is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• When are flight tickets from Cardiff (CWL) to Brussels (BRU) the cheapest?

  The cheapest months to fly from Cardiff to Brussels is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Cardiff to Brussels on?

  After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Cardiff to Brussels on November 22, 2025 with KLM Royal Dutch Airlines, with prices starting at £249.

• Is there any time difference between Cardiff and Brussels?

  The time difference between Brussels and Cardiff is 1h.

• How do I change or cancel my ticket from Cardiff to Brussels?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.