Cardiff to Southampton Airport (SOU) Trains

Cardiff to Southampton Airport (SOU) trains

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Trip Overview

The average train between Cardiff and Southampton Airport (SOU) takes 2h 23m and the fastest train takes 2h 10m. There is a train service every few hours from Cardiff to Southampton Airport (SOU). The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

2h 23m
Duration: 151 mi
Distance: £86
Average price: Hourly
Frequency

Train via Reading

best

Take the train from Cardiff Central to Readingtrain Swansea - London Paddington / ...
Take the train from Reading to Southampton Airport Parkwaytrain Manchester Piccadilly - Bournemouth / ...

2h 57m

£72–126

Cardiff to Southampton Airport (SOU) train times

Trains run hourly between Cardiff and Southampton Airport (SOU). The earliest departure is at 6:24 AM in the morning, and the last departure from Cardiff is at 9:20 PM which arrives into Southampton Airport (SOU) at 11:35 PM. All services require a transfer, and take on average 2h 23m. The schedules shown below are for the next available departures.

Departing Monday, August 17, 2026

9:20 PM → 11:35 PM
2h 15m • 1 change

Departing Tuesday, August 18, 2026

6:24 AM → 8:34 AM
2h 10m • 1 change
6:51 AM → 9:35 AM
2h 43m • 1 change
7:49 AM → 10:34 AM
2h 44m • 1 change
8:38 AM → 11:35 AM
2h 56m • 1 change
Show more

Departing Wednesday, August 19, 2026

6:24 AM → 8:34 AM
2h 10m • 1 change
6:51 AM → 9:35 AM
2h 43m • 1 change
7:49 AM → 10:34 AM
2h 44m • 1 change
8:38 AM → 11:35 AM
2h 56m • 1 change
Show more

Departing Thursday, August 20, 2026

6:24 AM → 8:34 AM
2h 10m • 1 change
6:51 AM → 9:35 AM
2h 43m • 1 change
7:49 AM → 10:34 AM
2h 44m • 1 change
8:38 AM → 11:35 AM
2h 56m • 1 change
Show more

Departing Friday, August 21, 2026

6:24 AM → 8:34 AM
2h 10m • 1 change
6:51 AM → 9:35 AM
2h 43m • 1 change

Frequently asked questions

Want to know about travelling from Cardiff to Southampton Airport (SOU)? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.