- Must visit
National Waterfront Museum
Major waterfront museum covering Wales's industrial and maritime story with interactive galleries in a landmark copper-smelting area.
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
The cheapest and fastest buses from Carmarthen to Swansea
Showing times, prices and bookable tickets for Sep 17
Cheapest price on Sep 17
lei59
Average ticket price on Sep 17
lei60
Fastest journey on Sep 17
50 m
Average journey duration on Sep 17
50 m
Buses on Sep 17
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 lei60 if you buy it on the day, but the cheapest tickets can be found for only lei59.
Fast buses
On Thu, Sep 17, we found 2 buses from Carmarthen to Swansea, including 2 direct services.
On Thu, Sep 17 the direct buses cover the 36 km distance in an average of 50 m but if you time it right, some buses will get you there in just 50 m .
On Thu, Sep 17 the slowest buses will take 50 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.
NX50811:10 AM0h50Carmarthen, Lammas Street (Rose and Crown Hotel)12:00 PMSwansea, Quadrant Bus Stationlei591One-way0 transfers- NX1129:50 AM0h50Carmarthen, Lammas Street (Rose and Crown Hotel)10:40 AMSwansea, Quadrant Bus Stationlei611One-way0 transfers
- NX50811:10 AM0h50Carmarthen, Lammas Street (Rose and Crown Hotel)12:00 PMSwansea, Quadrant Bus Stationlei591One-way0 transfers
- NX1129:50 AM0h50Carmarthen, Lammas Street (Rose and Crown Hotel)10:40 AMSwansea, Quadrant Bus Stationlei611One-way0 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 bus, with an average ticket price of lei53 For those with little time, consider booking a train, which has an average total journey time of 1h 18m. If you are seeking to minimise your carbon footprint, the train is your best option, with estimated CO2 emissions of 0.0 - 0.0kg. Average ticket prices depend on the travel mode: a bus costs an average of lei53, while a train costs an average of lei65.
Distance: 22 miles (36 km)
Compare bus with
| Bus | Most popular Train | Driving |
|---|---|---|
lei53 Average price Cheapest | lei65 Average price | lei46 Average price (fuel + tolls) |
1h 21m Average total duration 51m Onboard + 30m Additional time* | 1h 18m Average total duration Fastest 48m Onboard + 30m Additional time* | 46m Average total duration (door-to-door) |
0.0 - 0.1kg CO2 emissions | 0.0 - 0.0kg CO2 emissions Lowest | - CO2 emissions |
Most popular bus company |  Most popular train company | Your own car or car rental |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
The cheapest way to travel from Carmarthen to Swansea is a bus with an average price of lei53.
This is compared to other travel options from Carmarthen to Swansea:
A bus is lei11 less than a train for this route with tickets for a train from Carmarthen to Swansea costing on average lei65.
The fastest way to travel from Carmarthen to Swansea is by train with an average journey time of 48m.
Other travel options to Swansea take longer:
Bus takes on average 51m.
It's helpful to compare your options as there are 2 ways to travel between Carmarthen and Swansea including taking a train and bus.
We recommend using the train as it is the most popular way to get from Carmarthen to Swansea among Omio's users.
Take the bus. It's the cheapest way to make this trip, and the price gap is usually bigger than people expect.
Tickets start at around lei53 compared to roughly lei46 in fuel and tolls — a saving of about lei-7.17. The journey takes 51m versus 46m by car, so you'll arrive a bit later, but you can use the time productively rather than spending it behind the wheel. No parking to sort, no fuel stops, and most coaches have Wi-Fi and power outlets.
Driving is worth considering if you're on a tight schedule, travelling as a group (where fuel costs split several ways), or want the flexibility to stop along the way.
Carmarthen to Swansea Bus Timetables
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator Transport for Wales | Departure Time 04:37AM | Arrival Time 06:02AM | Duration 1h25 | Departure days Tue | Cheapest price lei86 |
Operator Transport for Wales | Departure Time 04:46AM | Arrival Time 06:02AM | Duration 1h16 | Departure days Tue | Cheapest price lei39 |
Operator National Express | Departure Time 09:35AM | Arrival Time 10:25AM | Duration 0h50 | Departure days Fri | Cheapest price lei64 |
Operator National Express | Departure Time 09:50AM | Arrival Time 10:40AM | Duration 0h50 | Departure days Thu, Sat | Cheapest price lei56 |
Operator National Express | Departure Time 09:55AM | Arrival Time 10:45AM | Duration 0h50 | Departure days Mon, Wed, Sun | Cheapest price lei52 |
Operator National Express | Departure Time 10:55AM | Arrival Time 11:45AM | Duration 0h50 | Departure days Mon, Wed, Sun | Cheapest price lei52 |
Operator National Express | Departure Time 11:10AM | Arrival Time 12:00PM | Duration 0h50 | Departure days Thu, Fri, Sat | Cheapest price lei54 |
Live departures
Carmarthen to Swansea bus times
The table below shows live departures for Carmarthen to Swansea buses for tomorrow, Thursday, September 17. You can also manually refresh the results below to see updated bus journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| NX112 | 9:50 AM Carmarthen, Lammas Street (Rose and Crown Hotel) | 0h50 | 10:40 AM Swansea, Quadrant Bus Station | 0 transfersDirect | |
| NX508 | 11:10 AM Carmarthen, Lammas Street (Rose and Crown Hotel) | 0h50 | 12:00 PM Swansea, Quadrant Bus Station | 0 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.
Thu
Sep 17
Sep 17
Fri
Sep 18
Sep 18
Sat
Sep 19
Sep 19
Sun
Sep 20
Sep 20
Mon
Sep 21
Sep 21
Tue
Sep 22
Sep 22
Wed
Sep 23
Sep 23
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
Buses from Carmarthen to Swansea run on average 2 times per day, taking around 51m. Cheap bus tickets for this journey start at lei46 but you can travel from only lei29 by train.
There are 2 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 lei29
Distance 22 miles (36 km) |
Average bus duration 51m |
Cheapest ticket price lei46 |
Buses per day 2 |
Direct buses 2 |
Fastest bus 50m |
First bus 12:05 AM |
Last bus 11:55 PM |
Cheapest Month Aug |
Cheapest Day Thu |
High Season Apr - Jun |
Low Season Oct - Dec |
Busiest Day Tue |
Least Busy Day Mon |
Best time to book 1 day |
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 lei29
Bus providers: National Express from Carmarthen to SwanseaYou can travel by bus between Carmarthen to Swansea with National Express for as low as lei46. 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
50m
Cheapest National Express Price
lei46
National Express frequency
2 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 Swansea
Things to do in Swansea
Discover the best of Swansea — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Swansea trip today.
- Recommended
Swansea Museum
Excellent local museum on Swansea's history, Egyptology, natural history, and ceramics, housed in an elegant city-centre building.
- Recommended
Glynn Vivian Art Gallery
Contemporary art centre presenting changing exhibitions by Welsh and international artists in a bright, modern waterfront space.
- Must visit
Swansea Bay Promenade
Wide sandy bay backed by a long promenade, ideal for walking, cycling, sunsets, and classic views across Swansea Bay.
- Must visit
Mumbles
Historic fishing village turned lively seaside district, loved for the pier, independent shops, sea views, and access to coastal walks.
- Must visit
Pennard Cliffs
Dramatic clifftop path section on Gower with famous views over Three Cliffs Bay, perfect for hikers and photographers.
- Vegetarian
Bara Brith
A rich Welsh fruit loaf packed with dried fruit and tea-soaked flavor, traditionally sliced and served with butter at tea time.
- Vegetarian
- Vegan
- Gluten-free
Laverbread
A traditional Welsh seaweed puree, often served with oats and laverbread cakes. It is a signature food of the Swansea Bay coastline.
- Vegetarian
Welsh Rarebit
Welsh cheddar melted with ale and mustard on toast. This comforting pub classic is strongly associated with Welsh home cooking.
Joe's Ice Cream Parlour
Popular casual spot for quality Welsh ice cream and desserts on Mumbles seafront, loved for local flavor and sea views nearby.
The Shed Restaurant
Well-regarded waterfront restaurant known for modern British cooking, seafood, and polished service in a smart contemporary setting.
Swansea Market
Historic market venue famous for traditional Welsh breakfast, laverbread, and cockles in a lively local atmosphere.
British Pound Sterling (£)
Moderate for the UK: hotels and dining are usually cheaper than London, while buses, cafes, and casual meals stay fairly affordable for tourists.
Average meal costs
- Budget
- £8-12 for fast food or a simple lunch.
- Mid-range
- £15-30 per person for a restaurant meal.
- Fine dining
- £45+ per person for upscale dining.
- Coffee
- £2.80-4 for a cappuccino.
Tipping culture
Tipping is optional. In restaurants, 10-12.5% is polite if service is not included. Round up taxi fares; cafes usually only get small change or none.
First Bus
Get the appOfficial public transport app
Prices
- Single ticket
- £2.20
- Day pass
- £4.80
To the city center
Swansea University Bay Campus -> Swansea Bus Station
- Distance
- 4 km
- Travel time
- 15 min
- Contactless card and mobile payments are accepted on First Bus services in Swansea. Buy before boarding in the First Bus app for faster boarding.
- Most city services are buses rather than rail or tram. Check live departures in the First Bus app before leaving Bay Campus.
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.
Cheap bus tickets from Carmarthen to Swansea can start from as little as lei46 when you book in advance. The average bus ticket price for Carmarthen to Swansea is lei53 ; 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 2 direct buses a day from Carmarthen to Swansea with National Express. 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 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, the following accessibility options are available when taking the bus from Carmarthen to Swansea:
- National Express
- Assistance
- Priority seating
- Accessible toilets.
Yes, there are bathrooms on board the bus from Carmarthen to Swansea for bus company National Express.
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.
Since neither Carmarthen nor Swansea are in the Schengen Area, passport requirements depend on the specific immigration rules of United Kingdom and United Kingdom. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
We recommend using the train as it is the most popular way to get from Carmarthen to Swansea among Omio's users.
The currency used in the United Kingdom is the British Pound Sterling (GBP). For travelers, using a card is generally more convenient and widely accepted, especially in cities and for transportation tickets, though carrying some cash can be useful for small purchases or in rural areas.
In Swansea, travelers should be cautious of pickpocketing, especially in crowded areas like Swansea Market and popular nightlife spots. It's advisable to avoid unlicensed taxis and only use official transportation services. Be wary of street scams involving unofficial ticket sellers or overly aggressive vendors, and always keep personal belongings secure when visiting busy attractions.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular bus stations
Popular bus stations from Carmarthen to Swansea
Most Carmarthen to Swansea buses use the Carmarthen, Lammas Street (Rose and Crown Hotel) to Swansea, Quadrant Bus Station station pair. Use this guide to compare Carmarthen and Swansea 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 Swansea
Which Carmarthen station do buses to Swansea leave from?
Buses from Carmarthen to Swansea 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 · lei6 · 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 Swansea station do buses from Carmarthen arrive at?
Buses from Carmarthen to Swansea arrive at Swansea, Quadrant Bus Station. Swansea, Quadrant Bus Station is from Swansea city centre.
Swansea, Quadrant Bus StationSwansea, Swansea SA1 3QX, UK
City-centre transport
Getting to Swansea, Quadrant Bus Station from Swansea city centre
Bus49, 30, 54 · 3m · lei22 · every ~3 min
Swansea, Quadrant Bus Station bus station facilities and services
Swansea, Quadrant Bus Station has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Food and drink
Food options include: Food outlets available within the station.
Wi-Fi and ATMs
Free WiFi available in the station premises. ATMs are aTMs are located near the main entrance.
Tickets and information
Ticket office support is available at Swansea, Quadrant Bus Station.
Parking, taxis and toilets
Available at Swansea, Quadrant Bus Station: Parking, Taxis, WC.
Accessibility
Accessibility facilities are available at Swansea, Quadrant Bus Station: The station is wheelchair accessible.
More options for your journey from Carmarthen to Swansea
Here are some other resources that might have the information you need
Most popular buses to and from Swansea and Carmarthen
Most popular bus connections to Swansea
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.
