Southampton to Carmarthen bus with National Express

Sat 06 Dec
+ Add return
National Express
FlixBus
Alsa
Megabus
Airport Bus Express Ltd
1,000+ travel companies
National Express
FlixBus
Alsa
Megabus
Airport Bus Express Ltd
1,000+ travel companies
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Travel Information

Compare train and coach for Southampton to Carmarthen

Omio recommends booking the train as it is the most popular option from Southampton to Carmarthen among Omio's users. If you are prioritising price take the coach with prices starting from £30. For those with little time consider booking a train which can get you there in 4h 32m. The ticket price range depends on the travel mode: a coach costs an average of £30, and a train costs an average of £53.

Distance: 227 km

Compare bus with

Coach
Most popular
Train

£52

Average Price

Cheapest

£73

Average Price

8h 35m

Average total duration

8h 5m

Onboard

+

30m

Additional time*

5h 2m

Average total duration

Fastest

4h 32m

Onboard

+

30m

Additional time*

National Express

Most popular bus company

Great Western Rail

Most popular train company

Direct Options

Direct Options

Compare prices and tickets Southampton to Carmarthen 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.

Sun
07 Dec
Mon
08 Dec
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09 Dec
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10 Dec
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13 Dec

Journey information

Overview: Bus from Southampton to Carmarthen

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of bus

Buses from Southampton to Carmarthen run on average 4 times per day, taking around 8h 5m. Cheap bus tickets for this journey start at £30 if you book in advance.

The earliest coach runs at 03:35, 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 5m
Cheapest ticket price
£30
Buses per day
4
Fastest bus
10h 5m
First bus
03:35
Last bus
18:34
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 Southampton to CarmarthenYou can travel by bus between Southampton to Carmarthen with National Express for as low as £30. 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
£30
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.
Learn more about National Express

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.

FAQs
Cheap coach tickets from Southampton to Carmarthen can start from as little as £27 when you book in advance. The average coach ticket price for Southampton to Carmarthen is £39; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Southampton to Carmarthen coach time is 10 h 30 min   covering the 141 mile long trip, but the journey time can vary depending on specific dates or if traveling on weekends and holidays.
The first coach from Southampton to Carmarthen leaves at 04: 00. Plan your trip with the Journey Planner   from Omio.
The last coach from Southampton to Carmarthen leaves at 14: 11.
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.
For the route from Southampton to Carmarthen you can take a coach with National Express. Be sure to check out all possible coach companies that offer services to Carmarthen from Southampton on Omio to compare what amenities they may have.
The cheapest month for a coach from Southampton to Carmarthen is November.
You have options as you can travel between Southampton and Carmarthen 2 different ways: train or coach.
No, the coach from Southampton to Carmarthen has no accessibility options.
No, there are no bathrooms on board the coach from Southampton to Carmarthen.
No, bikes are not allowed on board the coach from Southampton to Carmarthen.

To find the cheapest bus tickets for your trip from Southampton to Carmarthen, follow these tips:

  • Book in advance: Tickets are often cheaper when booked early.
  • Be flexible with dates and times: Traveling during off-peak hours or on weekdays can help you save money.
  • Use our search filters: Sort results by price to quickly identify the most affordable options.
  • Look for special deals or discounts: Check for promotions or discounts available on our website and app.

    • Start your search now and compare ticket prices to find the best deal!

    Yes, there is food available to purchase on board the coach from Southampton to Carmarthen.
    No, luggage for the coach from Southampton to Carmarthen needs to be booked in addition.
    No, there are no additional luggage options for the coach from Southampton to Carmarthen.
    Unfortunately, pets are not allowed on the coach from Southampton to Carmarthen.
    No, there are no USB plugs on board the coach from Southampton to Carmarthen.
    No, there is no WiFi on board the coach from Southampton to Carmarthen.

    popular bus stations

    Important Stations and Airports in Southampton and Carmarthen

    Southampton
    Carmarthen
    The major coach station for departures 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 from Southampton to Carmarthen.
    Southampton, Coach StationWifiParkingDiningATMTaxisAccessibilityWCTicket Office
    Amenities at bus station
    WifiWifi
    ParkingParking
    DiningDining
    ATMATM
    TaxisTaxis
    AccessibilityAccessibility
    WCWC
    Ticket OfficeTicket Office
    information
    address
    Address
    Harbour Parade, Southampton SO15 1BA, United Kingdom
    ticketOfficeHours
    Ticket Office Hours
    • 06:00-22:00
    carConnection
    Car connection
    Harbour Parade
    Wifi
    Wifi
    • Free Wi-Fi
    Dining
    Dining
    • Café Express (in the station)
    • Sandwich Bar (in the station).
    Taxis
    Taxis
    • Available outside the station.
    Accessibility
    Accessibility
    • Elevators, ramps
    WC
    WC
    • Available near the entrance.
    Public transport options for Southampton, Coach Station
    • Bus: U1, U2, U6, X4 Train: South Western Railway
    Southampton, University
    information

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