What is the cheapest month to fly from Southampton to Cardiff?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Southampton (SOU) to Cardiff (CWL), with fares starting from $119.

What is the lowest current fare from SOU to CWL?

The lowest currently-listed fare from Southampton (SOU) to Cardiff (CWL) is $119 on 2026-09-02.

Is there a direct flight from Southampton to Cardiff?

There is currently no non-stop service from SOU to CWL. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Southampton to Cardiff

Cheapest current fares: $119 in September 2026 on connecting flights.

Last updated August 10, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Southampton (SOU) to Cardiff (CWL). Refreshed daily.

Southampton (SOU) → Cardiff (CWL)

September 2026 $119

Frequently asked questions

What is the cheapest month to fly from Southampton to Cardiff?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Southampton (SOU) to Cardiff (CWL), with fares starting from $119.
What is the lowest current fare from SOU to CWL?

The lowest currently-listed fare from Southampton (SOU) to Cardiff (CWL) is $119 on 2026-09-02.
Is there a direct flight from Southampton to Cardiff?

There is currently no non-stop service from SOU to CWL. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.