Cheap Flights from Southampton (SOU) to Cardiff (CWL)

Compare Southampton to Cardiff flight deals

Find the cheapest month or even day of the year to fly to Cardiff

Book the best Cardiff fare with no extra fees

Flight deals from Southampton Airport to Cardiff Airport

Looking for a cheap last-minute deal or the best return flight from Southampton Airport to Cardiff Airport? If you want to travel next month, return fares start from £170. Find the lowest prices on one-way and return tickets right here.

Cardiff.£79 per passenger.Departing Sat, 25 Apr.One-way flight with easyJet.Outbound indirect flight with easyJet, departs from Southampton on Sat, 25 Apr, arriving in Cardiff.Price includes taxes and charges.From £79, select.

Cardiff.£104 per passenger.Departing Mon, 24 Aug.One-way flight with easyJet.Outbound indirect flight with easyJet, departs from Southampton on Mon, 24 Aug, arriving in Cardiff.Price includes taxes and charges.From £104, select.

Cardiff.£108 per passenger.Departing Tue, 31 Mar.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Southampton on Tue, 31 Mar, arriving in Cardiff.Price includes taxes and charges.From £108, select.

Find the cheapest month to fly from Southampton to Cardiff

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Southampton to Cardiff flights are currently cheapest in April.

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Southampton to Cardiff: Alternative routes

Compare routes from Southampton to Cardiff below. You may find an airport to fly into that's cheaper, faster, or easier than Cardiff.

Southampton to Cardiff: Flight information

The things to know before you go.

Cheapest flight found	£79
Cheapest month to fly	April

Finding cheap flights from Southampton to Cardiff: Frequently asked questions

How much are return flights from Southampton to Cardiff?

The best price we found for a return flight from Southampton to Cardiff is £149. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Southampton to Cardiff?

Currently, there are no airlines that fly direct from Southampton to Cardiff. But we found flights with one or more stops from £149.

How many flights are there a week from Southampton to Cardiff?

As of March 2026, there are no flights flying from Southampton to Cardiff.

When is the cheapest time to fly from Southampton to Cardiff?

The cheapest month to fly from Southampton to Cardiff is usually April.

Which upcoming date is cheapest to fly from Southampton Airport to Cardiff Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Southampton Airport to Cardiff Airport on Tuesday, 28 April 2026.

Can I get a direct flight from Southampton Airport to Cardiff Airport?

No airlines currently offer direct flights between Southampton Airport and Cardiff Airport. Most routes have one or more stops.

How can I find the best flight deal to Cardiff?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cardiff but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Cardiff?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cardiff is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Southampton Airport to Cardiff with?

Currently, easyJet offers the cheapest flight tickets to Cardiff.

Flying from Southampton Airport (SOU) to Cardiff Airport (CWL): what you need to know

Southampton and Cardiff follow the same timezone, UTC+0.
For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your SOU to CWL flight.
You can expect bigger queues in popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a smart move.
Consider adding a stopover when booking your ticket from Southampton Airport to Cardiff Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Check out these options between SOU and CWL:
- Dublin Airport
- Amsterdam Airport Schiphol
- Edinburgh Airport

How to find the cheapest flights from Southampton Airport (SOU) to Cardiff Airport (CWL)

The lowest price we've seen for a one-way Southampton Airport to Cardiff Airport flight is £79. A round-trip plane ticket right now is £149. Depending on the availability and when you book, these fares could change.
To find cheap tickets from SOU to CWL, book ahead. Airlines tend to offer lower prices when flights are first released.
The 'Whole month' search tool shows you the cheapest flights from Southampton Airport to Cardiff Airport throughout the month. It's an easy way to find a bargain if your trip dates are flexible.
There's no need to check every day to find out if fares have gone down when you create a Price Alert. We'll let you know as soon as there's a new deal on cheap flights from SOU to CWL.
Tailor your trip with filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Southampton Airport to Cardiff Airport.

Handy information about Southampton Airport (SOU)

When it comes to Southampton Airport's on-time performance, data shows 55.7% of flights complete their journey on time.
Southampton Airport is about 5 miles from central Southampton. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.
Expect a trip time of around 25 minutes when using public transport.
Need a handy hotel close to SOU? If you're boarding an early flight from Southampton Airport to Cardiff Airport, these stays will have you moments from your check-in counter:

Arriving at Cardiff Airport (CWL)

The last thing you want is a long trip to your hotel if you're landing late on a Southampton Airport to Cardiff Airport flight. Reserve one of these accommodation options near CWL instead:
Fast-track your adventure by picking up a Cardiff Airport rental car. Grab your wheels from Europcar, Keddy By Europcar or Enterprise and explore beyond Cardiff's usual tourist stops.
Lock in the best rate by booking your ride from Cardiff Airport about four weeks in advance of your trip.

Getting from Cardiff Airport (CWL) to central Cardiff

Cardiff Airport to the centre of Cardiff has a drive time of about 30 minutes. It's approximately 17 miles away.
When travelling by public transport, expect a journey of around 1 hour 5 minutes.

When to fly to Cardiff Airport (CWL)

The quietest month for a flight from Southampton Airport to Cardiff Airport is April, while June is the most popular. Choose the best time to visit Cardiff based on whether you prefer a more fast-paced or easygoing experience.
Book your flight from Southampton Airport to Cardiff Airport for July if you want to explore Cardiff during its warmest month. Expect temperatures of between 11ºC (52ºF) and 22ºC (72ºF).
For cooler conditions, look for a cheap ticket from SOU to CWL in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of United Kingdom

London is just one of the many places in United Kingdom waiting to be explored after you've seen Cardiff. Around 130 miles away to the east, check out popular attractions including Big Ben, The British Museum and Buckingham Palace.
Around 90 miles north-east of Cardiff, Birmingham is another essential stop in United Kingdom. Start your sightseeing at Cadbury World, The Library of Birmingham and National Sea Life Centre.