- Must visit
SeaCity Museum
Maritime museum telling the story of the Titanic, the docks and ocean travel. One of Southampton’s key visitor attractions.
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Travel Information
Compare train and coach for Carmarthen to Southampton
Omio recommends booking the train as it is the most popular option from Carmarthen to Southampton among Omio's users. If you are prioritising price, take the coach, with an average ticket price of £31 For those with little time, consider booking a train, which has an average total journey time of 5h 2m. Average ticket prices depend on the travel mode: a coach costs an average of £31, while a train costs an average of £78.
Distance: 227 km
Compare bus with
| Coach | Most popular Train |
|---|---|
£31 Average Price Cheapest | £78 Average Price |
8h 55m Average total duration 8h 25m Onboard + 30m Additional time* | 5h 2m Average total duration Fastest 4h 32m Onboard + 30m Additional time* |
 Most popular bus company |  Most popular train company |
Direct Options | Direct Options |
Compare prices and tickets Carmarthen 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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Why should you book Carmarthen to Southampton coaches with Omio?
National Express operates all coaches services from Carmarthen to Southampton.
Omio is an official ticket reseller for all your travel options from Carmarthen 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 Carmarthen 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 Carmarthen to Southampton.
Journey information
Overview: Bus from Carmarthen to Southampton
United KingdomUnited Kingdom
Buses from Carmarthen to Southampton run on average 4 times per day, taking around 8h 25m. Cheap bus tickets for this journey start at £31 if you book in advance.
The earliest coach runs at 04:00, the last at 11:56. The fastest coach covers the 227 km distance in 9h 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 25m |
Cheapest ticket price £31 |
Buses per day 4 |
Fastest bus 9h 55m |
First bus 4:00 |
Last bus 11:56 |
Cheapest Month Dec |
Cheapest Day Sat |
High Season Jul - Sept |
Low Season Oct - Dec |
Busiest Day Mon |
Least Busy Day Mon |
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 Carmarthen to SouthamptonYou can travel by bus between Carmarthen to Southampton with National Express for as low as £31. 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
9h 55m
Cheapest National Express Price
£31
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 Southampton
Things to do in Southampton
Discover the best of Southampton — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Southampton trip today.
- Recommended
Tudor House and Garden
Historic house museum with period rooms and displays on local history. A rewarding visit in the heart of the old town.
- Recommended
Southampton City Art Gallery
Gallery in the Civic Centre showing art from several periods, including modern British works. Good for a cultural stop in the city centre.
- Must visit
Old Town
Historic quarter of lanes, walls and vaults near the waterfront. Best for wandering between medieval sites, museums and old pubs.
- Recommended
Southampton Common
Large central park popular for walks, events and green space between the civic buildings. A practical and pleasant break from shopping streets.
- Recommended
Ocean Village
Waterside promenade with marina views, cafés nearby and links to old town walks. Visit for harbour scenery and a relaxed atmosphere.
- Gluten-free
Hampshire Hoggers
A hearty Hampshire stew of beef, onions and root vegetables, slowly cooked. It is a traditional county comfort dish linked to local farmhouse cooking.
- Gluten-free
South Coast Crab
Fresh crab from the nearby Solent and south coast, often served simply dressed. It is prized locally for sweet flavour and strong coastal identity.
Plaice
A classic south coast catch, grilled or fried and served in local pubs and seafood spots. It reflects Southampton’s long maritime food culture.
The Oxford Brasserie
Lively Oxford Street seafood restaurant serving fish, shellfish and British classics in an established, bustling setting.
Bacaro
Well-known Italian restaurant in Ocean Village with pizzas, pasta and marina views in a relaxed modern setting.
The Jetty
Contemporary fine dining in a polished setting, known for seasonal British tasting menus and carefully presented plates.
Pound sterling (£)
Moderate for UK city breaks. Hotels and dining cost less than London, while buses and casual meals are fairly manageable for most tourists.
Average meal costs
- Budget
- £8-12 for fast food or a basic meal.
- Mid-range
- £18-30 per person for a restaurant meal.
- Fine dining
- £60+ per person for upscale dining.
- Coffee
- £3-4 for a cappuccino.
Tipping culture
Restaurants may add a 10-12.5% service charge; if not, tip around 10% for good service. Taxi fares are often rounded up. Tipping in cafés is optional.
FAQs: Carmarthen to Southampton coach
Find answers to the most common questions about traveling from Carmarthen 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 Carmarthen to Southampton can start from as little as £31 when you book in advance. The average coach ticket price for Carmarthen to Southampton is £31; 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 Carmarthen to Southampton is 9h 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 Carmarthen to Southampton leaves at 4:00. Plan your trip with the Journey Planner from Omio.
The latest coach from Carmarthen to Southampton leaves at 11:56.
There are 4 coaches a day from Carmarthen 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 Carmarthen 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 Carmarthen and Southampton and compare the amenities they offer before buying a coach ticket.
When departing from Carmarthen , you have various coach station options to start your route from including Carmarthen, Lammas Street (Rose and Crown Hotel) . When arriving in Southampton , you can end your route in coach stations like Southampton, Coach Station, Southampton, University.Passengers board the coach most frequently from Carmarthen, Lammas Street (Rose and Crown Hotel), which is located around away from the city centre, and they get off the coach at Southampton, Coach Station, located 0 away from the city centre.
A trip to Southampton from Carmarthen is worth doing but not as a day trip with a journey time of 9h 55m each way. Check with Omio app the best way to travel.
The cheapest month for a coach from Carmarthen to Southampton is December.
It's helpful to compare your options as there are 2 ways to travel between Carmarthen and Southampton including taking a train and coach.
Yes, the following accessibility options are available when taking the coach from Carmarthen to Southampton:
- National Express
- Assistance
- Priority seating
- Accessible toilets.
Yes, there are bathrooms on board the coach from Carmarthen to Southampton for coach company National Express.
Whether you can cancel your coach ticket from Carmarthen 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 Carmarthen to Southampton.
Yes, the following luggage options are included when booking a coach ticket from Carmarthen 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 Carmarthen to Southampton:
- National Express
- 10€ per additional bag.
Unfortunately, pets are not allowed on the coach from Carmarthen to Southampton.
You can reserve your seat on the coach from Carmarthen to Southampton with the following coach company: National Express
Yes, there are USB plugs on board the coach from Carmarthen to Southampton with the following coach company: National Express.
Yes, there is Wifi on board the coach from Carmarthen to Southampton with the following coach company: National Express.
popular bus stations
Important Stations and Airports in Carmarthen and Southampton
Most Carmarthen to Southampton buses use the Carmarthen, Lammas Street (Rose and Crown Hotel) to Southampton, Coach Station station pair, with some services arriving at Southampton, University. Use this guide to compare Carmarthen and Southampton bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
Departure bus stations in Carmarthen
Arrival bus stations in Southampton
Which Carmarthen station do buses to Southampton leave from?
Buses from Carmarthen to Southampton leave from Carmarthen, Lammas Street (Rose and Crown Hotel). The station is from Carmarthen city centre at 2-5 Guildhall Square, Carmarthen SA31 1NP, UK.
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 · £0.90 · 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.
Which Southampton station do buses from Carmarthen arrive at?
Buses from Carmarthen to Southampton most often arrive at Southampton, Coach Station. Some services arrive at Southampton, University, so check your ticket before travel to confirm your Southampton arrival station.
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.
Most popular bus connections from Carmarthen
More options for your journey from Carmarthen to Southampton
Here are some other resources that might have the information you need
Most popular buses to and from Southampton and Carmarthen
Most popular bus connections
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