- Must visit
Carmarthenshire Museum
The county museum in a former bishop’s palace, covering Roman finds, local history and changing displays in an atmospheric setting.
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Journey information
Overview: Bus from Southampton to Carmarthen
United KingdomUnited Kingdom
Buses from Southampton to Carmarthen run on average 3 times per day, taking around 8h 43m. Cheap bus tickets for this journey start at £24 if you book in advance.
The earliest coach runs at 04:00, the last at 14:15. The fastest coach covers the 227 km distance in 7h 55m.
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 227 km |
Average bus duration 8h 43m |
Cheapest ticket price £24 |
Buses per day 3 |
Fastest bus 7h 55m |
First bus 4:00 |
Last bus 14:15 |
Cheapest Month Sept |
Cheapest Day Thu |
High Season Jan - Mar |
Low Season Jul - Sept |
Busiest Day Thu |
Least Busy Day Thu |
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
Why should you book Southampton to Carmarthen coaches with Omio?
National Express operates all coaches services from Southampton to Carmarthen.
Omio is an official ticket reseller for all your travel options from Southampton to Carmarthen.
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.
Bus providers: National Express from Southampton to CarmarthenYou can travel by bus between Southampton to Carmarthen with National Express for as low as £24. 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 National Express Duration
7h 55m
Cheapest National Express Price
£24
National Express frequency
3 a day
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.
Complete guide to Carmarthen
Things to do in Carmarthen
Discover the best of Carmarthen — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Carmarthen trip today.
- Recommended
Carmarthen Roman Amphitheatre Museum
Small museum on the old Roman amphitheatre site, introducing Roman Moridunum and the archaeology of early Carmarthen.
- Recommended
Dylan Thomas Boathouse and Writing Shed
Museum telling the story of Dylan Thomas and his family in a restored chapel, with exhibits on writing, broadcasting and local roots.
- Must visit
Carmarthen Park
Large public park with formal gardens, play areas, riverside walks and a hilltop monument, ideal for a relaxed break near the centre.
- Recommended
King Street
Historic market quarter with independent shops, old arcades and everyday town life, good for browsing and seeing central Carmarthen on foot.
- Recommended
Parc y Belyn
Riverside green space and woodland paths beside the Towy, popular for walking, wildlife watching and easy access from the town centre.
- Gluten-free
Cawl
Traditional Welsh broth made with lamb or beef, root vegetables and leeks. A staple of rural west Wales, valued for its hearty, slow-cooked flavour.
- Vegetarian
Bara Brith
A rich fruit loaf or tea bread with dried fruit and spices, commonly sliced and served with butter. Long associated with Welsh baking and teatime.
- Vegetarian
Welsh Cakes
Small oatcakes cooked on a bakestone, often split and toasted with butter or cheese. A traditional Welsh breakfast and teatime bread.
The Warren
Popular casual restaurant known for burgers, brunch and modern comfort food in a lively town-centre setting.
The Corries
Stylish restaurant and bar serving modern British dishes, cocktails and varied seasonal plates in an elegant atmosphere.
The Old Moathouse
Well-known traditional pub with classic Welsh and British meals, local ales and a relaxed historic setting.
Pound sterling (£)
Moderate for the UK. Hotels and dining are usually cheaper than in Cardiff or London, while local transport and everyday costs stay fairly manageable for visitors.
Average meal costs
- Budget
- £8-12 for a budget meal.
- Mid-range
- £18-30 per person for a mid-range meal.
- Fine dining
- £45+ per person for fine dining.
- Coffee
- £2.80-4 for a coffee.
Tipping culture
Tipping is modest. In restaurants, 10-12.5% is appreciated if service is not included. Round up taxi fares, and tipping in cafés is optional.
TrawsCymru
Get the appOfficial public transport app
Prices
- Single ticket
- £4
- Day pass
- £7
To the city centre
Carmarthen, Lammas Street (Rose and Crown Hotel) -> Carmarthen Bus Station
- Distance
- 400 m
- Travel time
- 5 min
- TrawsCymru adult day tickets are £7 from 1 February 2026 and cover multiple listed TrawsCymru routes, including T1C between Carmarthen and Aberystwyth.
- TrawsCymru buses accept contactless payment on board. For short trips in central Carmarthen, walking to Carmarthen Bus Station is usually quickest.
Best day trips from Carmarthen by bus
The most popular day trips by bus from Carmarthen are Cardiff, Swansea, Llanelli, Tenby and Aberystwyth. Find out what you can do in these day trip destinations and how to book your bus from Carmarthen on Omio.
Day trip from Carmarthen to Cardiff by bus
Why visit Cardiff for the day?
Cardiff is a compact capital known for Welsh culture, Cardiff Castle and the energy of the Principality Stadium. Victorian arcades, civic landmarks and Cardiff Bay give it a character that feels both historic and modern.
How to get from Carmarthen to Cardiff by bus?
There are 1 coaches per day. The earliest coach runs at 01:02, the last at 23:56. The fastest coach covers the 88 km distance in 2h 0m.
Day trip from Carmarthen to Swansea by bus
Why visit Swansea for the day?
Swansea is known for its sweeping bay, maritime past and connection to Dylan Thomas. The city mixes a practical urban centre with a waterfront feel and quick access to the Gower coast.
How to get from Carmarthen to Swansea by bus?
There are 2 coaches per day. The earliest coach runs at 00:05, the last at 23:55. The fastest coach covers the 36 km distance in 50m.
Day trip from Carmarthen to Llanelli by bus
Why visit Llanelli for the day?
Llanelli is a coastal town in Carmarthenshire known for rugby, Welsh language culture and its tinplate heritage. Beside the Loughor Estuary, it has a practical, down-to-earth feel with access to the Millennium Coastal Park.
How to get from Carmarthen to Llanelli by bus?
The earliest coach runs at 00:15, the last at 23:10.
Day trip from Carmarthen to Tenby by bus
Why visit Tenby for the day?
Tenby is a colourful harbour town on the Pembrokeshire coast with medieval walls and broad sandy beaches. Known as one of Wales's best-loved seaside resorts, it combines narrow streets, sea views and a relaxed holiday feel.
How to get from Carmarthen to Tenby by bus?
There are 2 coaches per day. The earliest coach runs at 07:00, the last at 21:55. The fastest coach covers the 34 km distance in 35m.
Day trip from Carmarthen to Aberystwyth by bus
Why visit Aberystwyth for the day?
Aberystwyth is a coastal university town in Ceredigion, known for its promenade, Welsh culture and lively arts scene. Between Cardigan Bay and green hills, it feels youthful yet relaxed, with a strong local identity.
How to get from Carmarthen to Aberystwyth by bus?
The earliest coach runs at 08:05, the last at 13:11. The fastest coach covers the 64 km distance in 9h 5m.
FAQs: Southampton to Carmarthen coach
Find answers to the most common questions about traveling from Southampton to Carmarthen 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 Carmarthen, this guide helps you travel smarter and with confidence.
Cheap coach tickets from Southampton to Carmarthen can start from as little as £24 when you book in advance. The average coach ticket price for Southampton to Carmarthen is £44; 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 Southampton to Carmarthen is 7h 55m to travel the 227 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 Southampton to Carmarthen leaves at 4:00. Plan your trip with the Journey Planner from Omio.
The latest coach from Southampton to Carmarthen leaves at 14:15.
There are 3 coaches a day from Southampton to Carmarthen which require at least one change with National Express. Schedules can vary on holidays or weekends with fewer coaches.
When taking a coach from Southampton to Carmarthen, you can count on National Express for the best way to get you to Carmarthen. You can also check all possible coach companies who offer a service between Southampton and Carmarthen and compare the amenities they offer before buying a coach ticket.
When departing from Southampton , you have various coach station options to start your route from including Southampton, Coach Station, Southampton, University . When arriving in Carmarthen , you can end your route in coach stations like Carmarthen, Lammas Street (Rose and Crown Hotel).Passengers board the coach most frequently from Southampton, Coach Station, which is located around away from the city centre, and they get off the coach at Carmarthen, Lammas Street (Rose and Crown Hotel), located 0 away from the city centre.
Yes, you can take a train between Southampton and Carmarthen.
Yes, the following accessibility options are available when taking the coach from Southampton to Carmarthen:
- National Express
- Assistance
- Priority seating
- Accessible toilets.
Yes, there are bathrooms on board the coach from Southampton to Carmarthen for coach company National Express.
Whether you can cancel your coach ticket from Southampton to Carmarthen 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 Southampton to Carmarthen.
Yes, the following luggage options are included when booking a coach ticket from Southampton to Carmarthen:
- 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 Southampton to Carmarthen:
- National Express
- 10€ per additional bag.
Unfortunately, pets are not allowed on the coach from Southampton to Carmarthen.
You can reserve your seat on the coach from Southampton to Carmarthen with the following coach company: National Express
Yes, there are USB plugs on board the coach from Southampton to Carmarthen with the following coach company: National Express.
Yes, there is Wifi on board the coach from Southampton to Carmarthen with the following coach company: National Express.
popular bus stations
Important Stations and Airports in Southampton and Carmarthen
Most Southampton to Carmarthen buses use the Southampton, Coach Station to Carmarthen, Lammas Street (Rose and Crown Hotel) station pair. Use this guide to compare Southampton and Carmarthen bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
Departure bus stations in Southampton
Arrival bus stations in Carmarthen
Which Southampton station do buses to Carmarthen leave from?
Buses from Southampton to Carmarthen leave from Southampton, Coach Station. The station is from Southampton city centre at Harbour Parade, Southampton SO15 1BA, United Kingdom.
Southampton, Coach StationHarbour Parade, Southampton SO15 1BA, United Kingdom
City-centre transport
Getting to Southampton, Coach Station from Southampton city centre
BusX4, X5 · 5m · £2 · every ~20 min
Southampton, Coach Station bus station facilities and services
Southampton, Coach Station has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC and Ticket Office.
Food and drink
Food options include: Café Express (in the station), Sandwich Bar (in the station).
Wi-Fi and ATMs
Free Wi-Fi. ATMs are located near the entrance for cash withdrawals.
Tickets and information
Ticket office support is available at Southampton, Coach Station.
Parking, taxis and toilets
Available at Southampton, Coach Station: Parking, Taxis, WC.
Accessibility
Accessibility facilities are available at Southampton, Coach Station: Elevators, ramps.
Southampton, UniversityUniversity Rd, Southampton SO17 1BJ, UK
City-centre transport
Getting to Southampton, University from Southampton city centre
Southampton, University is 3 km from Southampton city centre. Public transport options include:
BusU2b, U2 · 11m · £2 · every ~6 min
U1a, U1n, U1e · 25m · £2 · every ~37 min
U1a, U1n, U1e · 29m · £2 · every ~37 min
Southampton, University bus station facilities and services
Southampton, University has practical services for this route, including Wifi, Parking, ATM, Taxis, Accessibility, WC, Shower and Ticket Office.
Wi-Fi and ATMs
Wi-Fi is available at Southampton, University. ATMs are available at Southampton, University.
Tickets and information
Ticket office support is available at Southampton, University.
Parking, taxis and toilets
Available at Southampton, University: Parking, Taxis, WC.
Accessibility
Accessibility facilities are available at Southampton, University: Basic accessibility features are available for passengers.
Which Carmarthen station do buses from Southampton arrive at?
Buses from Southampton to Carmarthen arrive at Carmarthen, Lammas Street (Rose and Crown Hotel). Carmarthen, Lammas Street (Rose and Crown Hotel) is from Carmarthen city centre.
Carmarthen, Lammas Street (Rose and Crown Hotel)2-5 Guildhall Square, Carmarthen SA31 1NP, UK
City-centre transport
Getting to Carmarthen, Lammas Street (Rose and Crown Hotel) from Carmarthen city centre
BusT1x, 322, T1, T1a · 5m · £1 · every ~4 min
Carmarthen, Lammas Street (Rose and Crown Hotel) bus station facilities and services
Carmarthen, Lammas Street (Rose and Crown Hotel) has practical services for this route, including Accessibility.
Accessibility
Accessibility facilities are available at Carmarthen, Lammas Street (Rose and Crown Hotel): The place has an entrance that is wheelchair-accessible.
Most popular bus connections from Southampton
More options for your journey from Southampton to Carmarthen
Here are some other resources that might have the information you need
Most popular buses to and from Carmarthen and Southampton
Most popular bus connections
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