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The cheapest and fastest coaches from Cardiff to Southampton
Showing times and prices for 20 Apr
Cheapest price
£22
Average price
£27
Fastest journey
6 h 20 m
Average duration
6 h 33 m
Buses per day
22
Distance
139 km
Cheap tickets
The best way to find a cheap coach ticket from Cardiff to Southampton is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Cardiff to Southampton will cost around £27 if you buy it on the day, but you can find cheap coach tickets today for only £22.
Fast coaches
To travel from Cardiff to Southampton you need to make at least one change.
NX509 · NX03216:557h10Cardiff, University0:05Southampton, Coach Station£221One-way1 change- NX509 · NX03213:537h57Cardiff, University21:50Southampton, Coach Station£231One-way1 change
FlixBus · FlixBus6:456h45Cardiff, North Road (Friary Gardens)13:30Southampton Central (SOU)£231One-way1 change- FlixBus · FlixBus10:407h30Cardiff, North Road (Friary Gardens)18:10Southampton Central (SOU)£231One-way1 change
- FlixBus · FlixBus14:506h50Cardiff, North Road (Friary Gardens)21:40Southampton, Burgess Rd / Broadlands Rd (Southampton University)£231One-way1 change
- FlixBus · FlixBus4:406h20Cardiff, North Road (Friary Gardens)11:00Southampton, Burgess Rd / Broadlands Rd (Southampton University)£241One-way1 change
- FlixBus · FlixBus6:456h25Cardiff, North Road (Friary Gardens)13:10Southampton, Burgess Rd / Broadlands Rd (Southampton University)£241One-way1 change
- NX507 · NX03218:536h37Cardiff, University1:30Southampton, Coach Station£301One-way1 change
- FlixBus · FlixBus4:406h40Cardiff, North Road (Friary Gardens)11:20Southampton Central (SOU)£241One-way1 change
- FlixBus · FlixBus6:456h45Cardiff, North Road (Friary Gardens)13:30Southampton Central (SOU)£231One-way1 change
Travel Information
Compare train and coach for Cardiff to Southampton
Omio recommends booking the train as it is the most popular option from Cardiff to Southampton among Omio's users. If you are prioritising price take the coach with prices starting from £10. For those with little time consider booking a train which can get you there in 2h 38m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.0 - 0.1kg. The ticket price range depends on the travel mode: a coach costs an average of £10, and a train costs an average of £25.
Distance: 139 km
Compare bus with
| Coach | Most popular Train |
|---|---|
£20 Average Price Cheapest | £61 Average Price |
6h 12m Average total duration 5h 42m Onboard + 30m Additional time* | 3h 8m Average total duration Fastest 2h 38m Onboard + 30m Additional time* |
0.1 - 0.3kg CO2 emissions | 0.0 - 0.1kg CO2 emissions Lowest |
Most popular bus company |  Most popular train company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
Cardiff to Southampton bus times
The table below shows live departures for Cardiff to Southampton coaches for today, Sunday 19 April. You can also manually refresh the results below to see updated coach journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
| FlixBus · FlixBus | 16:40 Cardiff, North Road (Friary Gardens) | 6h45 | 23:25 Southampton, Burgess Rd / Broadlands Rd (Southampton University) | 1 change | |
| FlixBus · FlixBus | 16:40 Cardiff, North Road (Friary Gardens) | 7h05 | 23:45 Southampton Central (SOU) | 1 change | |
| NX507 · NX032 | On time 18:53 Cardiff, University | 6h37 | 1:30 Southampton, Coach Station | 1 change | |
| Monday 20 April | |||||
| NX509 · NX032 | Delayed 10:38 3:20Cardiff, University | 8h00 | 11:20 Southampton, Coach Station | 1 change | |
| FlixBus · FlixBus | 4:40 Cardiff, North Road (Friary Gardens) | 6h20 | 11:00 Southampton, Burgess Rd / Broadlands Rd (Southampton University) | 1 change | |
| FlixBus · FlixBus | 4:40 Cardiff, North Road (Friary Gardens) | 6h40 | 11:20 Southampton Central (SOU) | 1 change | |
| NX509 · NX032 | Delayed 10:38 5:20Cardiff, University | 7h30 | 12:50 Southampton, Coach Station | 1 change | |
| NX507 · NX032 | Delayed 6:38 6:05Cardiff, University | 7h45 | 13:50 Southampton, Coach Station | 1 change | |
| FlixBus · FlixBus | 6:45 Cardiff, North Road (Friary Gardens) | 6h45 | 13:30 Southampton Central (SOU) | 1 change | |
| FlixBus · FlixBus | 6:45 Cardiff, North Road (Friary Gardens) | 6h25 | 13:10 Southampton, Burgess Rd / Broadlands Rd (Southampton University) | 1 change | |
| NX509 · NX032 | Delayed 10:38 6:50Cardiff, University | 8h00 | 14:50 Southampton, Coach Station | 1 change | |
| NX509 · NX032 | Delayed 10:38 8:38Cardiff, University | 7h42 | 16:20 Southampton, Coach Station | 1 change | |
| NX509 · NX032 | Delayed 10:38 10:08Cardiff, University | 8h02 | 18:10 Southampton, Coach Station | 1 change | |
| FlixBus · FlixBus | 10:40 Cardiff, North Road (Friary Gardens) | 7h30 | 18:10 Southampton Central (SOU) | 1 change | |
| FlixBus · FlixBus | 10:40 Cardiff, North Road (Friary Gardens) | 7h10 | 17:50 Southampton, Burgess Rd / Broadlands Rd (Southampton University) | 1 change | |
| NX507 · NX032 | On time 12:23 Cardiff, University | 7h17 | 19:40 Southampton, Coach Station | 1 change | |
| NX509 · NX032 | On time 13:53 Cardiff, University | 7h57 | 21:50 Southampton, Coach Station | 1 change | |
| FlixBus · FlixBus | 14:50 Cardiff, North Road (Friary Gardens) | 6h50 | 21:40 Southampton, Burgess Rd / Broadlands Rd (Southampton University) | 1 change | |
| FlixBus · FlixBus | 14:50 Cardiff, North Road (Friary Gardens) | 7h10 | 22:00 Southampton Central (SOU) | 1 change | |
| NX509 · NX032 | On time 14:53 Cardiff, University | 7h52 | 22:45 Southampton, Coach Station | 1 change | |
| NX509 · NX032 | On time 16:55 Cardiff, University | 7h10 | 0:05 Southampton, Coach Station | 1 change | |
| NX507 · NX032 | On time 18:53 Cardiff, University | 6h37 | 1:30 Southampton, Coach Station | 1 change | |
| NX509 · NX032 | On time 19:53 Cardiff, University | 7h07 | 3:00 Southampton, Coach Station | 1 change | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Cardiff to Southampton by train or coach
Compare train and coach prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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26 Apr
26 Apr
Why should you book Cardiff to Southampton coaches with Omio?
National Express operates all coaches services from Cardiff to Southampton.
Omio is an official ticket reseller for all your travel options from Cardiff to Southampton.
Why book with Omio vs National Express?
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare National Express with all available travel options, which are train and bus to ensure you get the best deal for traveling from Cardiff to Southampton.
Why book with Omio over Wanderu?
- Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from Cardiff to Southampton.
Journey information
Overview: Bus from Cardiff to Southampton
United KingdomUnited Kingdom
Buses from Cardiff to Southampton run on average 16 times per day, taking around 5h 42m. Cheap bus tickets for this journey start at £10 if you book in advance.
The earliest coach runs at 02:20, the last at 23:40. The fastest coach covers the 139 km distance in 6h 20m.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance 139 km |
Average bus duration 5h 42m |
Cheapest ticket price £10 |
Buses per day 16 |
Fastest bus 6h 20m |
First bus 2:20 |
Last bus 23:40 |
Cheapest Month Jan |
Cheapest Day Sat |
High Season Apr - Jun |
Low Season Oct - Dec |
Busiest Day Fri |
Least Busy Day Thu |
Best time to book 14 days |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Bus providers: National Express from Cardiff to SouthamptonYou can travel by bus between Cardiff to Southampton with National Express for as low as £10. When you search for schedules and tickets, Omio will show you the best journey
National Express
About
National Express is the UK’s leading long-distance coach company, operating over 550 services per day and serving more than 900 destinations nationwide. It also runs frequent services to major UK airports — including Heathrow, Gatwick, Stansted, Luton, and Bristol — 24 hours a day. All National Express coaches are air-conditioned and offer free Wi-Fi and onboard entertainment. Most vehicles are equipped with seat belts and power outlets at every seat, allowing you to charge your phone or laptop during your journey. Ticket options include Restricted Fare, Standard Fare, and Fully Flexible Fare, with the latter providing maximum flexibility for cancellations or changes.
Luggage & cancellation policy
Average Duration
6h 45m
Cheapest Price
£15
Luggage included
Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Additional luggage
10€ per additional bag.
Cancellation Policy
You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
Amenities on board the bus
Wifi
Food sold onboard
Seat reservation
Toilets
USB plugs
Accessibility
Assistance; Priority seating; Accessible toilets.
Bikes
Folding Bikes are allowed; non-folding bikes are not allowed.
FAQs: Cardiff to Southampton coach
Find answers to the most common questions about traveling from Cardiff to Southampton by coach. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest coach, the cheapest option, or tips for making the most of your visit at Southampton, this guide helps you travel smarter and with confidence.
Cheap coach tickets from Cardiff to Southampton can start from as little as £10 when you book in advance. The average coach ticket price for Cardiff to Southampton is £20; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by coach from Cardiff to Southampton is 6h 20m to travel the 139 km long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest coach from Cardiff to Southampton leaves at 2:20. Plan your trip with the Journey Planner from Omio.
The latest coach from Cardiff to Southampton leaves at 23:40.
There are 16 coaches a day from Cardiff to Southampton which require at least one change with National Express. Schedules can vary on holidays or weekends with fewer coaches.
When taking a coach from Cardiff to Southampton, you can count on National Express for the best way to get you to Southampton. You can also check all possible coach companies who offer a service between Cardiff and Southampton and compare the amenities they offer before buying a coach ticket.
A trip to Southampton from Cardiff is worth doing but not as a day trip with a journey time of 6h 20m each way. Check with Omio app the best way to travel.
The cheapest month for a coach from Cardiff to Southampton is January.
It's helpful to compare your options as there are 2 ways to travel between Cardiff and Southampton including taking a train and coach.
Yes, the following accessibility options are available when taking the coach from Cardiff to Southampton:
- National Express
- Assistance
- Priority seating
- Accessible toilets.
Yes, there are bathrooms on board the coach from Cardiff to Southampton for coach company National Express.
Whether you can cancel your coach ticket from Cardiff to Southampton depends on the coach companies:
- National Express
- You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
Yes, bikes are allowed on board the coach with coach company National Express.
Tickets are often cheaper when booked early. Traveling during off-peak hours or on weekdays can help you save money. Sort results by price to quickly identify the most affordable options. Check for promotions or discounts available on our website and app.
No, there is no food available to purchase on board the coach from Cardiff to Southampton.
Yes, the following luggage options are included when booking a coach ticket from Cardiff to Southampton:
- National Express
- Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Yes, the following additional luggage options are available when booking a coach ticket from Cardiff to Southampton:
- National Express
- 10€ per additional bag.
Unfortunately, pets are not allowed on the coach from Cardiff to Southampton.
You can reserve your seat on the coach from Cardiff to Southampton with the following coach company: National Express
Yes, there are USB plugs on board the coach from Cardiff to Southampton with the following coach company: National Express.
Yes, there is Wifi on board the coach from Cardiff to Southampton with the following coach company: National Express.
popular bus stations
Important Stations and Airports in Cardiff and Southampton
Cardiff
Southampton
The major coach station for departures in Cardiff is Cardiff, Sophia Gardens. Find all the information you need to know about services, amenities and connections at Cardiff, Sophia Gardens for your trip from Cardiff to Southampton.
Cardiff, Sophia Gardens
information
Cardiff, North Road (Friary Gardens)
information
Cardiff, University
information
The major coach station for arrivals in Southampton is Southampton, Coach Station. Find all the information you need to know about services, amenities and connections at Southampton, Coach Station for your trip to Southampton from Cardiff.
Amenities at bus station
Wifi
Parking
Dining
ATM
Taxis
Accessibility
WC
Ticket Officeinformation
Ticket Office Hours
- 06:00-22:00
Car connection
Harbour ParadeWifi
- Free Wi-Fi
Dining
- Café Express (in the station)
- Sandwich Bar (in the station).
Taxis
- Available outside the station.
Accessibility
- Elevators, ramps
WC
- Available near the entrance.
Public transport options for Southampton, Coach Station
- Bus: U1, U2, U6, X4 Train: South Western Railway
Southampton, Burgess Rd (Library)
information
Southampton, University
information
Most popular bus connections from Cardiff
More options for your journey from Cardiff to Southampton
Here are some other resources that might have the information you need
Most popular buses to and from Southampton and Cardiff
Most popular bus connections
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