Carmarthen to Swansea bus with National Express

Fri, Mar 20
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The cheapest and fastest buses from Carmarthen to Swansea

Showing times and prices for Mar 20

Cheapest price

$13

Average price

$13

Fastest journey

50 m

Average duration

53 m

Buses per day

2

Distance

36 km

Cheap tickets

The best way to find a cheap bus ticket from Carmarthen to Swansea is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from Carmarthen to Swansea will cost around $13 if you buy it on the day, but the cheapest tickets can be found for only $13.

Fast buses

Of the 2 buses that leave Carmarthen for Swansea on Fri, Mar 20, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Fri, Mar 20 the direct buses cover the 36 km distance in an average of 53 m but if you time it right, some buses will get you there in just 50 m .

On Fri, Mar 20 the slowest buses will take 55 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

National ExpressNX508
10:55AM0h50
Carmarthen, Lammas Street (Rose and Crown Hotel)
11:45AMSwansea, Quadrant Bus Station
$131One-way
0 transfers
National ExpressNX112
08:25AM0h55
Carmarthen, Lammas Street (Rose and Crown Hotel)
09:20AMSwansea, Quadrant Bus Station
$131One-way
0 transfers

Travel Information

Compare train and bus for Carmarthen to Swansea

Omio recommends booking the train as it is the most popular option from Carmarthen to Swansea among Omio's users. If you are prioritising price take the train with prices starting from $6. For those with little time consider booking a train which can get you there in 48m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.0 - 0.0kg. The ticket price range depends on the travel mode: a train costs an average of $6, and a bus costs an average of $11.

Distance: 22 miles (36 km)

Compare bus with

Bus
Most popular
Train

$12

Average price

$11

Average price

Cheapest

1h 28m

Average total duration

58m

Onboard

+

30m

Additional time*

1h 18m

Average total duration

Fastest

48m

Onboard

+

30m

Additional time*

0.0 - 0.1kg

CO2 emissions

0.0 - 0.0kg

CO2 emissions

Lowest
National Express

Most popular bus company

Transport for Wales

Most popular train company

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

Carmarthen to Swansea Bus Timetables

OperatorDeparture TimeArrival TimeDurationDeparture daysCheapest price
Operator
National Express
Departure Time
08:25AM
Arrival Time
09:20AM
Duration
0h55
Departure days
Fri
Cheapest price
$13
Operator
National Express
Departure Time
10:55AM
Arrival Time
11:45AM
Duration
0h50
Departure days
Fri
Cheapest price
$13

Live departures

Carmarthen to Swansea bus times

The table below shows live departures for Carmarthen to Swansea buses for tomorrow, Thursday, March 19. You can also manually refresh the results below to see updated bus journeys.

Last updated at 6:19 PM
ProviderDepartsDurationArrivesTransfers
Tickets
national_expressNX1128:25 AM Carmarthen, Lammas Street (Rose and Crown Hotel)
0h55
9:20 AM Swansea, Quadrant Bus Station0 transfersDirect
national_expressNX50810:55 AM Carmarthen, Lammas Street (Rose and Crown Hotel)
0h50
11:45 AM Swansea, Quadrant Bus Station0 transfersDirect

This is the last bus of the day.

Find all the dates and times for this journey

Compare prices and tickets Carmarthen to Swansea by train or bus

Compare train and bus 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.

Fri
Mar 20
Sat
Mar 21
Sun
Mar 22
Mon
Mar 23
Tue
Mar 24
Wed
Mar 25
Thu
Mar 26

Why should you book Carmarthen to Swansea buses with Omio?

National Express operates all buses services from Carmarthen to Swansea.
Omio is an official ticket reseller for all your travel options from Carmarthen to Swansea.

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 Swansea.

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 Swansea.

Journey information

Overview: Bus from Carmarthen to Swansea

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of bus

Buses from Carmarthen to Swansea run on average 3 times per day, taking around 58m. Cheap bus tickets for this journey start at $11 (€9) but you can travel from only $6 (€5) by train.

There are 3 buses per day. The earliest bus runs at 00:05, the last at 23:55. The fastest bus covers the 22 miles (36 km) distance in 50m.

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
Cheapest alternative travel mode
Train from $6 (€5)
Distance
22 miles (36 km)
Average bus duration
58m
Cheapest ticket price
$11 (€9)
Buses per day
3
Direct buses
3
Fastest bus
50m
First bus
00:05
Last bus
23:55
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
Cheapest alternative travel mode
Train from $6 (€5)

Bus providers: National Express from Carmarthen to SwanseaYou can travel by bus between Carmarthen to Swansea with National Express for as low as $6 (€5). 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
50m
Cheapest Price
$11 (€9)
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: Bus from Carmarthen to Swansea

Find answers to the most common questions about traveling from Carmarthen to Swansea by bus. 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 bus, the cheapest option, or tips for making the most of your visit at Swansea, this guide helps you travel smarter and with confidence.

FAQs
Cheap bus tickets from Carmarthen to Swansea can start from as little as $11 (€9) when you book in advance. The average bus ticket price for Carmarthen to Swansea is $12 (€10) ; 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 bus from Carmarthen to Swansea is 50m to travel the 22 miles (36 km) long journey. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest bus from Carmarthen to Swansea leaves at 12:05 AM. Plan your trip with the Journey Planner from Omio.
The latest bus from Carmarthen to Swansea leaves at 11:55 PM.
Yes, there are 3 direct buses a day from Carmarthen to Swansea with . Schedules can vary on holidays or weekends with fewer direct buses.
When taking a bus from Carmarthen to Swansea, you can count on National Express for the best way to get you to Swansea. You can also check all possible bus companies who offer a service between Carmarthen and Swansea and compare the amenities they offer before buying a bus ticket.
Passengers board the bus 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 bus at Swansea, Quadrant Bus Station, located 0 away from the city centre.
A day trip to Swansea from Carmarthen is worth doing with a journey time of 50m each way. Check with Omio app the best way to travel.
The cheapest month for a bus from Carmarthen to Swansea is August.
It's helpful to compare your options as there are 2 ways to travel between Carmarthen and Swansea including taking a train and bus.
Yes, there are bathrooms on board the bus from Carmarthen to Swansea for bus company National Express.
Yes, the following accessibility options are available when taking the bus from Carmarthen to Swansea:
  • National Express
    • Assistance
    • Priority seating
    • Accessible toilets.
Whether you can cancel your bus ticket from Carmarthen to Swansea depends on the bus 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 bus with bus 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.
Yes, there is food available to purchase on board the bus from Carmarthen to Swansea.
Yes, the following luggage options are included when booking a bus ticket from Carmarthen to Swansea:
  • 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 bus ticket from Carmarthen to Swansea:
  • National Express
    • 10€ per additional bag.
Unfortunately, pets are not allowed on the bus from Carmarthen to Swansea.
You can reserve your seat on the bus from Carmarthen to Swansea with the following bus company: National Express
Yes, there are USB plugs on board the bus from Carmarthen to Swansea with the following bus company: National Express.
Yes, there is Wifi on board the bus from Carmarthen to Swansea with the following bus company: National Express.

popular bus stations

Popular bus stations from Carmarthen to Swansea

Carmarthen
Swansea
The major bus 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 Swansea.
Carmarthen, Lammas Street (Rose and Crown Hotel)Accessibility
Amenities at bus station
AccessibilityAccessibility
information
address
Address
2-5 Guildhall Square, Carmarthen SA31 1NP, UK
Accessibility
Accessibility
  • The place has an entrance that is wheelchair-accessible

Most popular bus connections from Carmarthen

Bus Carmarthen - Bristol

More options for your journey from Carmarthen to Swansea

Here are some other resources that might have the information you need

Return journeys for buses from Swansea to Carmarthen
Trains from Carmarthen to Swansea
Tickets and more information for coaches to Carmarthen
Tickets and more information for coaches to Swansea
HomeBusesBuses in United KingdomBus tickets to SwanseaCarmarthen to Swansea bus

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