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

Popular airlines from Southampton (SOU) to Cardiff International Airport (CWL)

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Frequently asked questions

How much does a flight from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL) cost?
Grab a cheap one-way flight or cheap return flight from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL)?
The cheapest month to fly from SOU to CWL is , when there's less demand. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL)?
To find the cheapest airline flying from SOU to CWL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL)?
You'll need to book a flight with a layover when traveling from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from SOU to CWL?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL)?
To avoid potential delays on the Southampton Airport (SOU) to Cardiff Intl. Airport (CWL) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL) last-minute?
Last-minute fares from SOU to CWL are generally more expensive. To secure the lowest prices, start searching for flights ahead of time. That being said, if you're flexible with your travel dates, it's possible to land a cheap fare just before your departure.
Is it cheaper to book a SOU to CWL flight and hotel package?
Booking a SOU to CWL flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Southampton Airport (SOU) to Cardiff Intl. Airport (CWL)?
Generally, it's possible to cancel or reschedule your SOU to CWL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Southampton
Destination airport
Cardiff Intl.
Distance
91 mi

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Southampton to Cardiff Flights

The cheapest times to fly from Southampton to Cardiff

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Southampton to Cardiff are during the month of . You can find some of the cheapest flights from Southampton to Cardiff with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Southampton to Cardiff

Sunday is one of the best days to book for cheap flights from Southampton to Cardiff: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Southampton to Cardiff

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Southampton to Cardiff in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Southampton to Cardiff flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Southampton to Cardiff airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Southampton to Cardiff Flights

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*Available to One Key members.