Bus from Cardiff to Southampton from $16

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Compare all timetables for the bus from Cardiff to Southampton

Here is a selection of the cheapest bus trips from the schedule from Cardiff to Southampton from various bus operators like National Express for the next days.
today
from $39
tomorrow
from $27
Thursday
from $29
Friday
from $27
Saturday
from $27
Sunday
from $27
Monday
from $16

Cheapest bus trips today

Prices are for one way and one person
  • National Express
    7h 25m
    0
    9:45 AM
    Cardiff
    Coach Station
    5:10 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $39
  • National Express
    7h 15m
    0
    7:15 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $40
  • National Express
    6h 20m
    0
    4:30 PM
    Cardiff
    Coach Station
    10:50 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $64
  • National Express
    5h 50m
    0
    3:25 AM
    Cardiff
    Coach Station
    9:15 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $68
  • National Express
    5h 55m
    0
    4:30 AM
    Cardiff
    Coach Station
    10:25 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $72
  • Did you know that if you travel from Cardiff to Southampton via Bristol, you can save more than $20? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      6:15 PM
      Cardiff
      University
      7:20 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $7
      • Waiting Time 0h 25m
    • National Express
      6h 30m
      0
      7:45 PM
      Bristol
      Coach Station
      2:15 AM
      Southampton
      University
      0
      National Express
      Economy
      $12
    Travel time is 2h 10m longer, but you will save $20

Cheapest bus trips tomorrow

Prices are for one way and one person
  • National Express
    7h 15m
    0
    7:15 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    7h 25m
    0
    9:45 AM
    Cardiff
    Coach Station
    5:10 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $29
  • National Express
    7h 5m
    0
    8:00 AM
    Cardiff
    Coach Station
    3:05 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $38
  • National Express
    5h 55m
    0
    4:30 AM
    Cardiff
    Coach Station
    10:25 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $61
  • National Express
    6h 20m
    0
    4:30 PM
    Cardiff
    Coach Station
    10:50 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $61
  • Did you know that if you travel from Cardiff to Southampton via Bristol, you can save more than $8? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      6:15 PM
      Cardiff
      University
      7:20 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $7
      • Waiting Time 0h 25m
    • National Express
      6h 30m
      0
      7:45 PM
      Bristol
      Coach Station
      2:15 AM
      Southampton
      University
      0
      National Express
      Economy
      $12
    Travel time is 2h 5m longer, but you will save $8

Cheapest bus trips Thursday

Prices are for one way and one person
  • National Express
    7h 25m
    0
    9:45 AM
    Cardiff
    Coach Station
    5:10 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $29
  • National Express
    7h 15m
    0
    7:15 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $29
  • National Express
    7h 5m
    0
    8:00 AM
    Cardiff
    Coach Station
    3:05 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $40
  • National Express
    6h 20m
    0
    4:30 PM
    Cardiff
    Coach Station
    10:50 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $51
  • National Express
    6h 25m
    0
    5:25 AM
    Cardiff
    Coach Station
    11:50 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $55
  • Did you know that if you travel from Cardiff to Southampton via Bristol, you can save more than $10? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      6:15 PM
      Cardiff
      University
      7:20 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $7
      • Waiting Time 0h 25m
    • National Express
      6h 30m
      0
      7:45 PM
      Bristol
      Coach Station
      2:15 AM
      Southampton
      University
      0
      National Express
      Economy
      $12
    Travel time is 1h 40m longer, but you will save $10

Cheapest bus trips Friday

Prices are for one way and one person
  • National Express
    6h 50m
    0
    5:30 PM
    Cardiff
    Coach Station
    12:20 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    6h 45m
    0
    7:45 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    7h 30m
    0
    10:00 AM
    Cardiff
    Coach Station
    5:30 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $48
  • National Express
    5h 50m
    0
    3:25 AM
    Cardiff
    Coach Station
    9:15 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $61
  • National Express
    6h 50m
    0
    2:55 PM
    Cardiff
    Coach Station
    9:45 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $61
  • Did you know that if you travel from Cardiff to Southampton via Bristol, you can save more than $8? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      6:15 PM
      Cardiff
      University
      7:20 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $7
      • Waiting Time 0h 25m
    • National Express
      6h 30m
      0
      7:45 PM
      Bristol
      Coach Station
      2:15 AM
      Southampton
      University
      0
      National Express
      Economy
      $12
    Travel time is 2h 10m longer, but you will save $8

Cheapest bus trips Saturday

Prices are for one way and one person
  • National Express
    6h 50m
    0
    5:30 PM
    Cardiff
    Coach Station
    12:20 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    6h 45m
    0
    7:45 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    6h 40m
    0
    5:55 AM
    Cardiff
    Coach Station
    12:35 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $37
  • National Express
    7h 0m
    0
    10:00 AM
    Cardiff
    Coach Station
    5:00 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $48
  • National Express
    6h 10m
    0
    4:40 PM
    Cardiff
    Coach Station
    10:50 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $61
  • Did you know that if you travel from Cardiff to Southampton via Bristol, you can save more than $8? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      6:15 PM
      Cardiff
      University
      7:20 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $7
      • Waiting Time 0h 25m
    • National Express
      6h 30m
      0
      7:45 PM
      Bristol
      Coach Station
      2:15 AM
      Southampton
      University
      0
      National Express
      Economy
      $12
    Travel time is 1h 50m longer, but you will save $8

Cheapest bus trips Sunday

Prices are for one way and one person
  • National Express
    7h 0m
    0
    10:00 AM
    Cardiff
    Coach Station
    5:00 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    6h 50m
    0
    5:30 PM
    Cardiff
    Coach Station
    12:20 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    6h 45m
    0
    7:45 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $27
  • National Express
    6h 40m
    0
    5:55 AM
    Cardiff
    Coach Station
    12:35 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $35
  • National Express
    5h 35m
    0
    3:40 AM
    Cardiff
    Coach Station
    9:15 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $61
  • Did you know that if you travel from Cardiff to Southampton via Bristol, you can save more than $8? You can find the corresponding connections below.
    • National Express
      8h 0m
      0
      6:15 PM
      Cardiff
      University
      7:20 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $7
      • Waiting Time 0h 25m
    • National Express
      6h 30m
      0
      7:45 PM
      Bristol
      Coach Station
      2:15 AM
      Southampton
      University
      0
      National Express
      Economy
      $12
    Travel time is 2h 25m longer, but you will save $8

Cheapest bus trips Monday

Prices are for one way and one person
  • National Express
    6h 45m
    0
    7:45 PM
    Cardiff
    Coach Station
    2:30 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $16
  • National Express
    6h 50m
    0
    5:30 PM
    Cardiff
    Coach Station
    12:20 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $17
  • National Express
    7h 15m
    0
    10:00 AM
    Cardiff
    Coach Station
    5:15 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $29
  • National Express
    6h 20m
    0
    4:30 PM
    Cardiff
    Coach Station
    10:50 PM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $43
  • National Express
    5h 50m
    0
    3:25 AM
    Cardiff
    Coach Station
    9:15 AM
    Southampton
    Bus Station
    0
    National Express
    Economy
    $45

Frequency of bus connections between Cardiff and Southampton

See here how frequent the connections between Cardiff and Southampton are, during different times and days of the week.
Sunday is the busiest day, with more than 14 daily buses from Cardiff to Southampton. Tuesday has instead the fewest connections, with only 13 daily coaches between Cardiff and Southampton.
The busiest time of the day is the Afternoon, with 32 buses from Cardiff to Southampton, while Evening sees the fewest connections between Cardiff and Southampton, with 14 offers.

Facts about the bus from Cardiff to Southampton

Compare all providers like National Express that travel 13 times every day by bus from Cardiff to Southampton in one click! Book your bus ticket from Cardiff to Southampton starting from $16!

Cheapest Bus $16
Fastest Bus 5h 25m
Earliest Bus 3:25 AM
Latest Bus 11:40 PM
Daily Bus Routes 13 Ø
Distance 86.4 miles
Bus Companies National Express

Cheapest bus connections from Cardiff to Southampton

Every day, 13 buses from 1 bus companies leave Cardiff for Southampton: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 04/23/2025 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 04/20
Monday 04/21
Tuesday 04/22
$39
Wednesday 04/23
$27
Thursday 04/24
$29
Friday 04/25
$27
Saturday 04/26
$27
Sunday 04/27
$27
Monday 04/28
$16
Tuesday 04/29
$24
Wednesday 04/30
$22
Thursday 05/01
$22
Friday 05/02
$27
Saturday 05/03
$27
Sunday 05/04
$27
Monday 05/05
$31
Tuesday 05/06
Wednesday 05/07
$19
Thursday 05/08
$22
Friday 05/09
$19
Saturday 05/10
$19
Sunday 05/11
$17
Monday 05/12
$16
Tuesday 05/13
$19
Wednesday 05/14
$16
Thursday 05/15
$19
Friday 05/16
$19
Saturday 05/17

The cheapest time to travel from Cardiff to Southampton

See here on which day and which time of the day you can find the cheapest bus ticket from Cardiff to Southampton, for the next 30 days.
With a price starting from $16, Monday is the cheapest day for a bus from Cardiff to Southampton. Tuesday instead is the most expensive day with prices starting from $39.
Evening is the cheapest day time for bus tickets from Cardiff to Southampton, with $16. Night is the most expensive time of the day with prices starting from $35.

How to save money travelling from Cardiff to Southampton

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from Cardiff to Southampton in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from Cardiff to Southampton, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later buses from Cardiff to Southampton are also emptier.

Beloved bus companies from Cardiff to Southampton

These are the most booked bus companies between Cardiff to Southampton from our users.

National Express from Cardiff to Southampton

National Express

Here you will find the key facts about the National Express bus route Cardiff to Southampton:

Cheapest Price $16
Fastest Bus 5h 25m
Earliest Bus 3:25 AM
Last Bus 11:40 PM
Daily Connections 13 Ø
Found on 4/21/2025

All bus stations and stops in Cardiff and Southampton

In the map below, you can see where to find all bus stations in Cardiff and Southampton.

Compare the bus with other modes of transport

The bus is often the cheapest mode of transport, while other modes like train or flight are faster. Looking for quicker alternatives to travel from Cardiff to Southampton? Compare all modes of transports from Cardiff to Southampton.

Service and Comfort on the bus from Cardiff to Southampton

Want to know which seat classes are available on the buses from Cardiff to Southampton? Or which bus companies serve the route Cardiff to Southampton? Below you will find answers to your questions.

FAQs about the Cardiff to Southampton bus

How much does a Cardiff Southampton bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $16 and takes 6h 45m to reach Southampton. Compare offers to save money!

How much could I save by comparing buses from Cardiff to Southampton?

This route is offered by 1 companies with a range of ticket prices between $16 and $98. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Southampton.

On average, how many connections are available from Cardiff to Southampton each day?

Every day, the Cardiff to Southampton bus route is served by approximately 13 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Cardiff to Southampton take?

The fastest bus from Cardiff to Southampton is offered by National Express and takes 5h 25m. Bus tickets for this connection cost $71. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Cardiff to Southampton?

The earliest bus arriving in Southampton from Cardiff starts at 3:25 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

What time is the last bus from Cardiff to Southampton?

The latest bus trip departing from Cardiff for Southampton starts at 11:40 PM. Please note that departure times may differ on weekends and holidays. So just use our search to find the exact times for your planned travel date.

Which bus companies operate the Cardiff Southampton route?

When traveling by bus from Cardiff to Southampton, passengers can travel with National Express. With our search, you can compare all available bus tickets to book the one that works for you.

Is there a direct bus between Cardiff and Southampton?

You can check all the direct connections between Cardiff and Southampton by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: National Express.

What can I take with me on the Cardiff to Southampton bus route?

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the Cardiff Southampton bus route free of charge. Simply use our search to find a bus that is best suited to your needs for your planned travel date.

What equipment is available for the Cardiff Southampton bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make traveling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from Cardiff to Southampton on your planned travel date.

Available seat classes which are offered on the bus route Cardiff to Southampton

Economy
Economy

The cheapest option available for your ticket, it usually comes with reclinable seats and AC.

More bus routes to Cardiff and to Southampton

Here’s an overview of the most popular bus routes to Cardiff and to Southampton. Simply click on the connection of your choice, and you will find all the details about your bus route!
Bus to Cardiff from Bridgend Bus to Cardiff from Bridgend
From Glasgow to Cardiff bus From Glasgow to Cardiff bus
Tenby to Cardiff bus Tenby to Cardiff bus
Buses from Coventry to Cardiff Buses from Coventry to Cardiff
Buses from Manchester to Southampton Buses from Manchester to Southampton
Buses to Southampton from Leicester Buses to Southampton from Leicester
Exeter to Southampton bus Exeter to Southampton bus
Buses Bath to Southampton Buses Bath to Southampton
Popular Airport Shuttles to Cardiff and to Southampton
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