The cheapest and fastest trains from Carmarthen to Swansea
Cheapest price
$6
Average price
$8
Fastest journey
42 m
Average duration
46 m
Trains per day
4
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 $8 if you buy it on the day, but the cheapest tickets can be found for only $6.
Of the 4 trains that leave Carmarthen for Swansea on Fri, Dec 19, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Fri, Dec 19 the direct trains cover the 36 km distance in an average of 46 m but if you time it right, some trains will get you there in just 42 m .
On Fri, Dec 19 the slowest trains will take 48 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.








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 €5. For those with little time consider booking a train which can get you there in 47m. 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 €5, and a bus costs an average of €9.
Distance: 22 miles (36 km)
Compare train with
Most popular Train | Bus |
|---|---|
€7 Average price Cheapest | €9 Average price |
1h 17m Average total duration Fastest 47m Onboard + 30m Additional time* | 1h 33m Average total duration 1h 3m Onboard + 30m Additional time* |
0.0 - 0.0kg CO2 emissions Lowest | 0.0 - 0.1kg CO2 emissions |
![]() Most popular train company | ![]() Most popular bus company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
Carmarthen to Swansea train times
The table below shows live departures for Carmarthen to Swansea trains for today, Thursday, December 18. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 6:59 AM Carmarthen | 0h48 | 7:47 AM Swansea | 0 transfersDirect | |
![]() | 7:31 AM Carmarthen | 0h46 | 8:17 AM Swansea | 0 transfersDirect | |
![]() | 11:34 AM Carmarthen | 0h42 | 12:16 PM Swansea | 0 transfersDirect | |
![]() | 5:32 PM Carmarthen | 0h44 | 6:16 PM Swansea | 0 transfersDirect | |
![]() | 9:42 PM Carmarthen | 0h45 | 10:27 PM Swansea | 0 transfersDirect |
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.
Dec 19
Dec 20
Dec 21
Dec 22
Dec 23
Dec 24
Dec 25
Why should you book Carmarthen to Swansea trains with Omio?
Transport for Wales as well as Great Western Rail and first_great_western offer trains 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 Transport for Wales?
- Compare with other providers: On Omio, you can not only buy tickets for Transport for Wales, but also compare tickets for the likes of Great Western Rail and first_great_western to find the best option for your trip from Carmarthen to Swansea.
- 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 Transport for Wales 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 Trainline and Rail Europe?
- Multiple travel company options: While Transport for Wales tickets can be bought on Transport for Wales's website or third party sellers, Omio allows you to compare with the likes of Great Western Rail and first_great_western to help you choose the right option for your journey from Carmarthen to Swansea.
- 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: Train from Carmarthen to Swansea
Trains from Carmarthen to Swansea run on average 6 times per day, taking around 47m. Cheap train tickets for this journey start at $6 (€5) if you book in advance.
There are 6 trains per day. The earliest train runs at 00:01, the last at 23:58. The fastest train covers the 22 miles (36 km) distance in 42m.
Distance 22 miles (36 km) |
Average train duration 47m |
Cheapest ticket price $6 (€5) |
Trains per day 6 |
Direct trains 6 |
Fastest train 42m |
First train 00:01 |
Last train 23:58 |
Train companies: Transport for Wales, Great Western Rail, first_great_western from Carmarthen to Swansea trainsTransport for Wales, Great Western Rail, first_great_western trains will get you between Carmarthen and Swansea from $6 (€5). With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Transport for Wales
Great Western Rail
first_great_western
FAQs: Trains from Carmarthen to Swansea
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.

popular train stations
Popular train stations from Carmarthen to Swansea
- Opening hours: Monday - Friday 06:45 - 18:00
- Type of shops available: News agent
- Car Park: Station Car Park
- 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
- Toilets Location: The toilets are located on Platform 1. The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- National key toilets: Yes
- Baby changing facilities: No
- Storage sheltered: No
- Storage location: On Platform 1
- Storage CCTV: Yes
- Location for Rail Replacement Services: Wait at the bus stop opposite the station entrance
- Opening hours: Monday - Friday 05:15 - 20:00 Saturday 06:15 - 20:00 Sunday 08:00 - 20:00 Tickets requiring reservations: Mon-Sat 0910-1845
- Car Park: Mariners Road (until 30 April 2019). Thereafter please use the top level of Ivy Street (High Street) multistorey car park.
- 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
- Toilets Location: The toilets are located on Platform 1. The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- National key toilets: Yes
- National key toilets location: The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- Baby changing facilities: Yes
- Storage sheltered: No
- Storage location: On Platform 1
- Storage CCTV: Yes
- Location for Rail Replacement Services: Wait at the bus stops on High Street outside the station
Most popular train connections from Carmarthen
More options for your journey from Carmarthen to Swansea
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