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Flights from Cardiff to Southampton
Flights from Cardiff to Southampton Starting at £124
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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CWL 12:0020h 25m1 stopsSOU 08:25Cardiff - Southampton | Mon, Mar 31 | Aer LingusSOU 16:4515h 35m1 stopsCWL 08:20Southampton - Cardiff | Thu, Apr 3 | Aer Lingus£194 £33843% OFF43% OFF£338 £194
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CWL 10:256h 25m1 stopsSOU 16:50Cardiff - Southampton | Tue, Mar 25 | KLMSOU 17:3515h 40m1 stopsCWL 09:15Southampton - Cardiff | Mon, Mar 31 | KLM£221 £33835% OFF35% OFF£338 £221
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CWL 12:0023h 45m1 stopsSOU 11:45Cardiff - Southampton | Thu, Apr 3 | Aer LingusSOU 11:5023h 40m1 stopsCWL 11:30Southampton - Cardiff | Mon, Apr 7 | easyJet£224 £33834% OFF34% OFF£338 £224
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CWL 17:2515h 25m1 stopsSOU 08:50Cardiff - Southampton | Fri, Mar 21 | KLMSOU 09:0024h 55m1 stopsCWL 09:55Southampton - Cardiff | Mon, Mar 24 | KLM£22633% OFF£338 £226
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CWL 17:2515h1 stopsSOU 08:25Cardiff - Southampton | Mon, Mar 24 | KLMSOU 09:2023h 55m1 stopsCWL 09:15Southampton - Cardiff | Sun, Mar 30 | KLM£23132% OFF£338 £231
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CWL 17:1515h 30m1 stopsSOU 08:45Cardiff - Southampton | Wed, Apr 30 | KLMSOU 09:2023h 55m1 stopsCWL 09:15Southampton - Cardiff | Mon, May 5 | KLM£23131% OFF£338 £231
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CWL 17:2515h1 stopsSOU 08:25Cardiff - Southampton | Thu, Mar 27 | KLMSOU 17:3515h 40m1 stopsCWL 09:15Southampton - Cardiff | Wed, Apr 2 | KLM£23431% OFF£338 £234
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CWL 17:1515h 35m1 stopsSOU 08:50Cardiff - Southampton | Mon, Mar 31 | KLMSOU 18:2514h 50m1 stopsCWL 09:15Southampton - Cardiff | Sun, Apr 6 | KLM£23530% OFF£338 £235
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CWL 17:1515h 30m1 stopsSOU 08:45Cardiff - Southampton | Tue, Apr 1 | KLMSOU 17:3523h 10m1 stopsCWL 16:45Southampton - Cardiff | Mon, Apr 7 | KLM£23630% OFF£338 £236
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CWL 10:2022h 10m1 stopsSOU 08:30Cardiff - Southampton | Wed, Mar 26 | KLMSOU 17:3515h 40m1 stopsCWL 09:15Southampton - Cardiff | Tue, Apr 1 | KLM£23630% OFF£338 £236
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CWL 13:0017h 25m1 stopsSOU Invalid DateCardiff - Southampton | Fri, Mar 21 | Normal AirlineSOU 15:006hNonstopCWL 16:00Southampton - Cardiff | Sun, Mar 23 | Normal AirlineFind More FlightsFind More Flights
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CWL 12:5524h1 stopsSOU 12:55Cardiff - Southampton | Thu, Mar 27 | Aer Lingus£124 £28656% OFF56% OFF£286 £124
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CWL 12:0020h 25m1 stopsSOU 08:25Cardiff - Southampton | Tue, Mar 25 | Aer Lingus£143 £28650% OFF50% OFF£286 £143
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CWL 16:053h 20m1 stopsSOU 19:25Cardiff - Southampton | Tue, Mar 25 | Loganair£160 £28644% OFF44% OFF£286 £160
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CWL 20:1511h 55m1 stopsSOU 08:10Cardiff - Southampton | Thu, Mar 27 | Loganair£17539% OFF£286 £175
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CWL 12:0020h 25m1 stopsSOU 08:25Cardiff - Southampton | Wed, Mar 19 | Aer Lingus£17937% OFF£286 £179
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CWL 19:4513h 40m1 stopsSOU 09:25Cardiff - Southampton | Fri, Apr 25 | Loganair£19034% OFF£286 £190
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CWL 12:0020h 25m1 stopsSOU 08:25Cardiff - Southampton | Sat, Apr 26 | Aer Lingus£19133% OFF£286 £191
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CWL 19:4513h 40m1 stopsSOU 09:25Cardiff - Southampton | Fri, May 9 | Loganair£19532% OFF£286 £195
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CWL 09:007h 15m1 stopsSOU 16:15Cardiff - Southampton | Fri, May 9 | Aer Lingus£19831% OFF£286 £198
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CWL 09:0023h 25m1 stopsSOU 08:25Cardiff - Southampton | Fri, May 2 | Aer Lingus£20030% OFF£286 £200
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CWL 13:0017h 25m1 stopsSOU Invalid DateCardiff - Southampton | Fri, Mar 21 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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FAQ
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When are flight tickets from Cardiff (CWL) to Southampton (SOU) the cheapest?
Airlines adjust prices for flights from Cardiff to Southampton based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much are flights from Cardiff (CWL) to Southampton (SOU) cost?
According to Trip.com's data, the lowest price is around £301. -
What is the transportation method from the main airport to downtown in Southampton?
- The distance from Southampton Airport to downtown is about 5km, by taxi about 20 minutes.
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What's the most popular airline for direct flights from Cardiff (CWL) to Southampton (SOU)?
Eastern Airways operates 1 direct flights from Cardiff (CWL) to Southampton (SOU). -
How many airports in Southampton (SOU)?
There are 1 airport(s) in Southampton (SOU): Southampton Airport.
How to find a cheap flight from Cardiff to Southampton
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Cardiff to Southampton. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest flight from Cardiff to Southampton.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from Cardiff to Southampton over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Thu, Mar 27, with one-way flights priced at just £124.
Compare cheap flight deals from Cardiff to Southampton across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from Cardiff to Southampton. The cheapest airline for this route is Aer Lingus.
Set up a Price Alert
By setting up a Price Alert for your journey from Cardiff to Southampton, you can easily keep an eye on ticket prices without having to check every day.
Don't miss out on cheap flight deals and promo codes from Cardiff to Southampton.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Cardiff to Southampton and snag some exclusive deals just for you.
Flight Information from Cardiff to Southampton
Cheapest one-way flight price | £123 |
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Off-season travel month | March |
Peak season for travel | April |
Flight distance | 147.12km |
Popular airline | Aer Lingus |
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