In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

If weather is an important factor for your trip to Southampton, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from CWL to SOU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cardiff to Southampton as you normally would.

Can I find deals for flights from Cardiff to Southampton that include hotel bookings?

Yes. In addition to deals on Cardiff to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Cardiff to Southampton?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Southampton.

Can I find deals for business class flights from Cardiff to Southampton?

Yes. Cheapflights offers flight deals from Cardiff to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£176+ Cheap Flights from Cardiff to Southampton

Cheap flight deals from Cardiff to Southampton

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Cardiff to Southampton
Explore the most affordable flight options available from Cardiff to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Sat 3/1007:30 -

1 stop25h 05m

Fri 9/1020:00 -

1 stop10h 55m

Deal found 20/9£176

Fri 2/1007:45 -

1 stop11h 45m

Tue 6/1013:25 -

2 stops9h 25m

Deal found 17/9£188

Sun 4/1012:00 -

1 stop20h 25m

Thu 8/1009:25 -

1 stop11h 00m

Deal found 19/9£191

Sun 27/912:00 -

1 stop20h 25m

Mon 28/920:00 -

1 stop26h 50m

Deal found 21/9£244

Wed 21/1023:50 -

1 stop8h 50m

Sat 24/1018:15 -

2 stops20h 40m

Deal found 21/9£271

Find flight deals from Cardiff to Southampton

Round-trip from	£176

3/10-9/10
2 total stops
36h 00m total
Cardiff to Southampton

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cardiff to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffSouthampton

CWL Cardiff Wales - SOU Southampton Eastleigh

CWLSOU

Cardiff Wales

Sat 3/10

07:30-08:35

1 stop25h 05m

Southampton Eastleigh

Fri 9/10

20:00-06:55

1 stop10h 55m

£176

CardiffSouthampton

CWL Cardiff Wales - SOU Southampton Eastleigh

CWLSOU

Cardiff Wales

Fri 2/10

07:45-19:30

1 stop11h 45m

Southampton Eastleigh

Tue 6/10

20:00-23:25

1 stop27h 25m

£191

CardiffSouthampton

CWL Cardiff Wales - SOU Southampton Eastleigh

CWLSOU

Cardiff Wales

Sun 4/10

12:00-08:25

1 stop20h 25m

Southampton Eastleigh

Thu 8/10

09:25-20:25

1 stop11h 00m

£191

Fastest return journey

CardiffSouthampton

CWL Cardiff Wales - SOU Southampton Eastleigh

CWLSOU

Cardiff Wales

Wed 21/10

23:50-08:40

1 stop8h 50m

Southampton Eastleigh

Sat 24/10

18:15-14:55

2 stops20h 40m

£271

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Sorted by cheapest first

Best time to book a flight from Cardiff to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Cardiff with our price prediction graph.

CWL-SOU

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Can I find deals for flights from Cardiff to Southampton that include hotel bookings?
Yes. In addition to deals on Cardiff to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cardiff to Southampton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Southampton.
Can I find deals for business class flights from Cardiff to Southampton?
Yes. Cheapflights offers flight deals from Cardiff to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Other flight options

Other flights from Cardiff

Popular flights

Southampton flight routes

Alternative routes for Cardiff to Southampton

Manchester to Gatwick flights

Manchester to Stansted flights

Manchester to Luton flights

Manchester to London City flights

Manchester to Southend flights

Bristol to Edinburgh flights

Manchester to Heathrow flights

Bristol to Gatwick flights

Bristol to Heathrow flights

Bristol to Luton flights

Bristol to London City flights

Bristol to Stansted flights

Manchester to Liverpool flights

Bristol to Southend flights

Cardiff to Edinburgh flights

Bristol to Newcastle upon Tyne flights

Manchester to Newquay flights

Manchester to Edinburgh flights

Cardiff to Heathrow flights

Cardiff to Gatwick flights

Manchester to Newcastle upon Tyne flights

Manchester to Southampton flights

Bristol to Manchester flights

Manchester to Exeter flights

Cardiff to London City flights

Cardiff to Luton flights

Cardiff to Stansted flights

Manchester to Birmingham flights

Manchester to Norwich flights

Manchester to Bristol flights

Manchester to Leeds flights

Cardiff to Southend flights

Cardiff to Manchester flights

Bristol to Leeds flights

Cardiff to Newcastle upon Tyne flights

Bristol to Liverpool flights

Bristol to Exeter flights

Manchester to East Midlands flights

Bristol to Birmingham flights

Manchester to Darlington flights

Cardiff to Bristol flights

Manchester to Grimsby flights

Bristol to Newquay flights

Fly with Cheapflights

How does Cheapflights help users find flights from Cardiff to Southampton?

Cheapflights helps you search for flights from Cardiff to Southampton via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Southampton?

Cheapflights simply makes it quick and affordable to book flights from Cardiff to Southampton by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Cardiff to Southampton with no change fees?

Certainly. Search results for flights to Southampton from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cardiff to Southampton become cheaper?

Yes, Cheapflights offers price alerts on Cardiff to Southampton flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Cardiff to Southampton from £176

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to Southampton

Cheapest flights from Cardiff to SouthamptonExplore the most affordable flight options available from Cardiff to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Explore the most affordable flight options available from Cardiff to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Best flights from Cardiff to SouthamptonDiscover carefully curated flight deals from Cardiff to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Discover carefully curated flight deals from Cardiff to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Last-minute flights from Cardiff to SouthamptonDiscover last-minute flight deals from Cardiff to Southampton. Data last updated 22 September 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to Southampton. Data last updated 22 September 2026 and is based on user searches.

Find flight deals from Cardiff to Southampton

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cardiff to Southampton that are best for you.

Best time to book a flight from Cardiff to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Cardiff with our price prediction graph.

Related info for your journey

Can I find deals for flights from Cardiff to Southampton that include hotel bookings?

How can I find direct flights from Cardiff to Southampton?

Can I find deals for business class flights from Cardiff to Southampton?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cardiff to Southampton

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Southampton by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Cardiff to Southampton by cabin class

Find flights from Cardiff to Southampton, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Cardiff and Southampton flights

Browse other Cardiff and Southampton flight options. Last updated on 22 September 2026.

Other flights from Cardiff

Browse through other flights departing from Cardiff. Flights are based on user searches made on Cheapflights and were last updated on 22 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Southampton

Explore flights to Southampton departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 22 September 2026.

Fly with Cheapflights

How does Cheapflights help users find flights from Cardiff to Southampton?

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Southampton?

Can Cheapflights find flights from Cardiff to Southampton with no change fees?

Can Cheapflights notify me if prices for flights from Cardiff to Southampton become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Cardiff to Southampton
Explore the most affordable flight options available from Cardiff to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Best flights from Cardiff to Southampton
Discover carefully curated flight deals from Cardiff to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Last-minute flights from Cardiff to Southampton
Discover last-minute flight deals from Cardiff to Southampton. Data last updated 22 September 2026 and is based on user searches.