Cheap flights from Southampton to Cardiff

Travellers have found that booking a Sunday departure is the best way to save up to 85% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 47 days in advance, which can save you up to 31% on flights from Southampton to Cardiff compared to booking the week you need them. Waiting 47 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £147. For sooner than that we have options available in the next 3 days from £179.

Our data shows that March tends to be the cheapest month to fly to Cardiff from Southampton. Users have commonly found prices around £142 for the month, but tickets can be as low as £93. Due to multiple factors, prepare for potentially higher prices in December.

When flying from Southampton to Cardiff, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 10% versus a flight at midday.