How much is the bus ticket from Southampton to Cardiff?

The cheapest coach tickets from Southampton to Cardiff start from £14. The average price for this route is around £25. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

How long is the bus journey from Southampton to Cardiff?

The average bus journey time from Southampton to Cardiff is 7h 20m, covering a distance of 87 miles. The fastest bus can take you there in 6h 25m and is operated by National Express .

Which bus companies service the Southampton to Cardiff route?

Several major bus companies operate on this route with 19 buses available per day, including services from National Express , FlixBus .

What is the earliest and latest departure time for the bus from Southampton to Cardiff?

The earliest bus departs from Southampton to Cardiff at 02:20. And the latest bus departs at 19:15.

What are the CO₂ emissions for the bus trip from Southampton to Cardiff?

A bus journey from Southampton to Cardiff produces an estimated 3 kg of CO₂, making it a highly eco-friendly choice and a mode of travel recommended by Busbud.

Which is the best bus company from Southampton to Cardiff?

According to Busbud customers, the highest-rated bus company on this route is National Express , with an average rating of 4.2 out of 5 stars based on 29779 reviews.

Which company has the best Wi-Fi from Southampton to Cardiff?

Based on Busbud reviews, the bus company National Express has the best Wi-Fi rating with a score of 3.4.

Which bus company offers the most punctual service from Southampton to Cardiff?

According to Busbud traveller reviews, the most punctual bus company on this route is National Express , with a punctuality rating of 4.1 out of 5 stars.

Which bus company has the cleanest buses from Southampton to Cardiff?

According to Busbud traveller reviews, the bus company with the cleanest buses on this route is National Express , with a cleanliness rating of 4.7 out of 5 stars.

Bus Southampton to Cardiff from £11 | Refundable Tickets

Previously seen journeys

Next departures from Southampton to Cardiff on 26 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	12:25	University of Southampton	7h 15m	19:40	Cardiff (Gabalfa Interchange, o/s Roberts Optometrists)	No tags
Bus	15:10	University of Southampton	7h 25m	22:35	Cardiff University (o/s Cathays Rail Stn)	No tags
Bus	15:10	University of Southampton	7h 20m	22:30	Cardiff (Gabalfa Interchange, o/s Roberts Optometrists)	No tags
Bus	18:40	University of Southampton	6h 5m	00:45	Cardiff (Gabalfa Interchange, o/s Roberts Optometrists)	No tags
Bus	18:40	University of Southampton	6h 10m	00:50	Cardiff University (o/s Cathays Rail Stn)	No tags

Compare 2 ways to travel from Southampton to Cardiff

We recommend taking the train

Among the sustainable travel choices, the train stands out as a good way to reach Cardiff. The journey takes about 2 hours 39 minutes and with fares starting at just £27, it presents an excellent value for a comfortable ride.

5train per day

2h 39mAverage duration

86 milesDistance

3kgCO₂ emissions

	Average price	Average duration	CO₂ emissions	Actions
Bus	Average price£14 - £62	Average duration7h 20m	CO₂ emissions 3kg CO₂e
Train	Average price£27 - £67	Average duration2h 39m	CO₂ emissions 3kg CO₂e

Where are the popular stops in Southampton and Cardiff?

Stops in Southampton

A
Southampton Coach Station
20 Harbour Parade, Southampton SO15 1BA, UK
Visit page
B
Southampton Bus Stop
563 Vincents Walk, Southampton SO14, UK
C
W. Esplanade Bus Station - Southampton
Wyndham Pl, Southampton SO15, UK
D
Bus Stop Queensway
51-55 Above Bar St, Southampton, Southampton SO14 7DZ, UK
E
Southampton Central
Western Esplanade, Southampton SO15 1QJ, UK
F
Ferry Terminal
7 Town Quay, Southampton SO14 2ET, UK

Stops in Cardiff

A
Cardiff University (o/s Cathays Rail Stn)
50 Park Place (Bus Stop, o/s Cathays Rail Stn), Cardiff CF10
B
Sophia Gardens
2 Sophia Cl, Cardiff CF11, UK
Visit page
C
Cardiff Coach Station - Sophia Gardens
22 Cathedral Rd, Cardiff CF11 9LJ, UK
Visit page
D
Cardiff - Castle Street Bus Stop
21A Castle St, Cardiff CF10 1BT, UK
E
National Museum
Gorsedd Gardens Rd, Cardiff CF10 3NP, UK
F
Cardiff Bus Stop - Westgate
206 Westgate St, Cardiff CF10, UK

Compare bus companies

National Express

4/529,794 reviews

Staff4.7

Timeliness4.1

Cleanliness4.7

WiFi3.4

FlixBus

3.5/511,742 reviews

Staff4.1

Timeliness3.9

Cleanliness4.1

WiFi2.7

GB Bus Companies: FlixBus, BlaBlaCar Bus, Greyhound, ALSA, Intercape, Trenitalia, National Express

Frequently asked questions about travelling by bus from Southampton to Cardiff

Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.

How much is the bus ticket from Southampton to Cardiff?
The cheapest coach tickets from Southampton to Cardiff start from £14. The average price for this route is around £25. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus journey from Southampton to Cardiff?
The average bus journey time from Southampton to Cardiff is 7h 20m, covering a distance of 87 miles. The fastest bus can take you there in 6h 25m and is operated by National Express.
Which bus companies service the Southampton to Cardiff route?
Several major bus companies operate on this route with 19 buses available per day, including services from National Express, FlixBus.
What is the earliest and latest departure time for the bus from Southampton to Cardiff?
The earliest bus departs from Southampton to Cardiff at 02:20. And the latest bus departs at 19:15.
What are the CO₂ emissions for the bus trip from Southampton to Cardiff?
A bus journey from Southampton to Cardiff produces an estimated 3 kg of CO₂, making it a highly eco-friendly choice and a mode of travel recommended by Busbud.
Which is the best bus company from Southampton to Cardiff?
According to Busbud customers, the highest-rated bus company on this route is National Express, with an average rating of 4.2 out of 5 stars based on 29779 reviews.
Which company has the best Wi-Fi from Southampton to Cardiff?
Based on Busbud reviews, the bus company National Express has the best Wi-Fi rating with a score of 3.4.
Which bus company offers the most punctual service from Southampton to Cardiff?
According to Busbud traveller reviews, the most punctual bus company on this route is National Express, with a punctuality rating of 4.1 out of 5 stars.
Which bus company has the cleanest buses from Southampton to Cardiff?
According to Busbud traveller reviews, the bus company with the cleanest buses on this route is National Express, with a cleanliness rating of 4.7 out of 5 stars.

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

24/12

£33

25/12

No data

Today

£60

27/12

£32

28/12

£43

29/12

£23

30/12

£29

31/12

£21

The cheapest trip from Southampton to Cardiff was searched and found on 31 Dec 2025 with a price of £21

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Southampton to Cardiff as early as possible.

You can expect to pay from £21 to £65 for a bus ticket from Southampton to Cardiff based on the last 2 days. You can expect to find the cheapest price for the trip at £21, which is on 2025-12-31.

Usually National Express will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.