- Must visit
National Waterfront Museum
Major waterfront museum covering Wales's industrial and maritime story with interactive galleries in a landmark copper-smelting area.
Cheapest price
$9
Average price
$14
Fastest journey
46 m
Average duration
47 m
Trains per day
8
Distance
36 km
The best way to find a cheap train 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 $14 if you buy it on the day, but the cheapest tickets can be found for only $9.
Of the 8 trains that leave Carmarthen for Swansea on Mon, Aug 03, 8 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Mon, Aug 03 the direct trains cover the 36 km distance in an average of 47 m but if you time it right, some trains will get you there in just 46 m .
On Mon, Aug 03 the slowest trains will take 49 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.
G38442
G39158
G38950
G39180
G38284
G15045
G39180
G38442
G38284
G39158Trains from Carmarthen to Swansea run on average 7 times per day, taking around 49m. Cheap train tickets for this journey start at $6 if you book in advance.
There are 7 trains per day. The earliest train runs at 00:01, the last at 23:56. The fastest train covers the 22 miles (36 km) distance in 42m.
Distance 22 miles (36 km) |
Average train duration 49m |
Cheapest ticket price $6 |
Trains per day 7 |
Direct trains 7 |
Fastest train 42m |
First train 12:01 AM |
Last train 11:56 PM |
Cheapest Month May |
Cheapest Day Tue |
High Season Jan - Mar |
Low Season Jul - Sep |
Busiest Day Wed |
Least Busy Day Mon |
Best time to book 1 day |
The table below shows live departures for Carmarthen to Swansea trains for tomorrow, Monday, August 3. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
G38442 | 4:37 AM Carmarthen station (CMN) | 0h47 | 5:24 AM Swansea station (SWA) | 0 transfersDirect | |
G39158 | 5:32 AM Carmarthen station (CMN) | 0h49 | 6:21 AM Swansea station (SWA) | 0 transfersDirect | |
G38284 | 6:52 AM Carmarthen station (CMN) | 0h47 | 7:39 AM Swansea station (SWA) | 0 transfersDirect | |
W35432 | 7:23 AM Carmarthen station (CMN) | 0h50 | 8:13 AM Swansea station (SWA) | 0 transfersDirect | |
G38950 | 7:57 AM Carmarthen station (CMN) | 0h50 | 8:47 AM Swansea station (SWA) | 0 transfersDirect | |
G39180 | 8:30 AM Carmarthen station (CMN) | 0h47 | 9:17 AM Swansea station (SWA) | 0 transfersDirect | |
G15045 | 9:21 AM Carmarthen station (CMN) | 0h46 | 10:07 AM Swansea station (SWA) | 0 transfersDirect | |
G38953 | 9:58 AM Carmarthen station (CMN) | 0h51 | 10:49 AM Swansea station (SWA) | 0 transfersDirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Discover the best of Swansea — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Swansea trip today.
Major waterfront museum covering Wales's industrial and maritime story with interactive galleries in a landmark copper-smelting area.
Excellent local museum on Swansea's history, Egyptology, natural history, and ceramics, housed in an elegant city-centre building.
Contemporary art centre presenting changing exhibitions by Welsh and international artists in a bright, modern waterfront space.
Wide sandy bay backed by a long promenade, ideal for walking, cycling, sunsets, and classic views across Swansea Bay.
Historic fishing village turned lively seaside district, loved for the pier, independent shops, sea views, and access to coastal walks.
Dramatic clifftop path section on Gower with famous views over Three Cliffs Bay, perfect for hikers and photographers.
A rich Welsh fruit loaf packed with dried fruit and tea-soaked flavor, traditionally sliced and served with butter at tea time.
A traditional Welsh seaweed puree, often served with oats and laverbread cakes. It is a signature food of the Swansea Bay coastline.
Welsh cheddar melted with ale and mustard on toast. This comforting pub classic is strongly associated with Welsh home cooking.
Popular casual spot for quality Welsh ice cream and desserts on Mumbles seafront, loved for local flavor and sea views nearby.
Well-regarded waterfront restaurant known for modern British cooking, seafood, and polished service in a smart contemporary setting.
Historic market venue famous for traditional Welsh breakfast, laverbread, and cockles in a lively local atmosphere.
Moderate for the UK: hotels and dining are usually cheaper than London, while buses, cafes, and casual meals stay fairly affordable for tourists.
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.
Official public transport app
Swansea Railway Station -> Swansea Bus Station
Find answers to the most common questions about traveling from Carmarthen to Swansea by train. 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 train, the cheapest option, or tips for making the most of your visit at Swansea, this guide helps you travel smarter and with confidence.

Most Carmarthen to Swansea trains use the Carmarthen to Swansea station pair. Use this guide to compare Carmarthen and Swansea train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Carmarthen has practical services for this route, including Shopping, Parking, Dining, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, and Bike Rental.
Food and drink options are available at Carmarthen.
Ticket office support is available at Carmarthen.
Lost and found is available at the station.
Available at Carmarthen: Parking, WC.
Available at Carmarthen: Bike Parking, Bike Rental.
Accessibility facilities are available at Carmarthen: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Category B1. Step free access is available to Platform 1. Platform 2 can be accessed via the ramp at the end of Platform 1 and across a foot crossing, Accessible car park equipment: Wheelchair users can use car park equipment at this station unaided, Accessible ticket machines: There are accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
Swansea has practical services for this route, including Shopping, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, and Bike Rental.
Food and drink options are available at Swansea.
ATMs are available at Swansea.
Ticket office support is available at Swansea.
Lost and found is available at the station.
Available at Swansea: Parking, WC.
Available at Swansea: Bike Parking, Bike Rental.
Accessibility facilities are available at Swansea: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Category A. Step free access to all platforms, Accessible car park equipment: Wheelchair users can use car park equipment at this station unaided, Accessible public telephones: on concourse, Accessible ticket machines: There are accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
Here are some other resources that might have the information you need