2,000+ travel companies
2,000+ travel companies
Scan to get our free app
Use our app to get live travel updates and book mobile tickets for trains, buses, flights, and ferries.
App Store
4.942K ratings
Google Play
4.6136K reviews
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 prices starting from £35. For those with little time consider booking a train which can get you there in 4h 34m. The ticket price range depends on the travel mode: a coach costs an average of £35, and a train costs an average of £81.
Distance: 227 km
Compare bus with
| Coach | Most popular Train |
|---|---|
£41 Average Price Cheapest | £85 Average Price |
8h 55m Average total duration 8h 25m Onboard + 30m Additional time* | 5h 4m Average total duration Fastest 4h 34m 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.
Wed
15 Apr
15 Apr
Thu
16 Apr
16 Apr
Fri
17 Apr
17 Apr
Sat
18 Apr
18 Apr
Sun
19 Apr
19 Apr
Mon
20 Apr
20 Apr
Tue
21 Apr
21 Apr
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 £35 if you book in advance.
The earliest coach runs at 04:00, the last at 18:34. The fastest coach covers the 227 km distance in 10h 5m.
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 £35 |
Buses per day 4 |
Fastest bus 10h 5m |
First bus 4:00 |
Last bus 18:34 |
Cheapest Month Jul |
Cheapest Day Tue |
High Season Apr - Jun |
Low Season Oct - Dec |
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 £35. 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
10h 5m
Cheapest Price
£35
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: 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 £35 when you book in advance. The average coach ticket price for Carmarthen to Southampton is £41; 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 10h 5m 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 18:34.
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 0 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 10h 5m each way. Check with Omio app the best way to travel.
The cheapest month for a coach from Carmarthen to Southampton is July.
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
Carmarthen
Southampton
The major coach station for departures in Carmarthen is Carmarthen, Lammas Street (Rose and Crown Hotel). Find all the information you need to know about services, amenities and connections at Carmarthen, Lammas Street (Rose and Crown Hotel) for your trip from Carmarthen to Southampton.
Carmarthen, Lammas Street (Rose and Crown Hotel)
Amenities at bus station
Accessibilityinformation
Accessibility
- The place has an entrance that is wheelchair-accessible
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 Carmarthen.
Amenities at bus station
Wifi
Parking
Dining
ATM
TaxisAccessibility
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, University
information
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
The Omio App Makes Travel Planning Easy
We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.
