The cheapest and fastest buses from Swansea to Carmarthen
Cheapest price
$12
Average price
$13
Fastest journey
45 m
Average duration
45 m
Buses per day
4
Distance
36 km
The best way to find a cheap bus ticket from Swansea to Carmarthen is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Swansea to Carmarthen will cost around $13 if you buy it on the day, but the cheapest tickets can be found for only $12.
Of the 4 buses that leave Swansea for Carmarthen on Fri, Jun 19, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Fri, Jun 19 the direct buses cover the 36 km distance in an average of 45 m but if you time it right, some buses will get you there in just 45 m .
On Fri, Jun 19 the slowest buses will take 45 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.
5:20 PM0h45Swansea6:05 PMCarmarthen$121One-way0 transfers
4:45 PM0h45Swansea5:30 PMCarmarthen$121One-way0 transfers
4:00 PM0h45Swansea4:45 PMCarmarthen$131One-way0 transfers
5:45 PM0h45Swansea6:30 PMCarmarthen$131One-way0 transfers
5:45 PM0h45Swansea6:30 PMCarmarthen$131One-way0 transfers
4:00 PM0h45Swansea4:45 PMCarmarthen$131One-way0 transfers
5:20 PM0h45Swansea6:05 PMCarmarthen$121One-way0 transfers
4:45 PM0h45Swansea5:30 PMCarmarthen$121One-way0 transfers
Travel Information
Compare train and bus for Swansea to Carmarthen
Omio recommends booking the train as it is the most popular option from Swansea to Carmarthen 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 $11.
Distance: 22 miles (36 km)
Compare bus with
| Bus | Most popular Train | Driving |
|---|---|---|
$12 Average price | $12 Average price Cheapest | $10 Average price (fuel + tolls) |
1h 28m Average total duration 58m Onboard + 30m Additional time* | 1h 17m Average total duration Fastest 47m Onboard + 30m Additional time* | 43m 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.
This is compared to other travel options from Swansea to Carmarthen:
A train is $0.76 (€0.62) less than a bus for this route with tickets for a bus from Swansea to Carmarthen costing on average $12 (€10).
Other travel options to Carmarthen take longer:
Bus takes on average 58m.
You'll arrive about -1h -15m sooner (58m by bus vs 43m by car) and save roughly $-2.38 (€-1.95) compared to fuel and tolls ($12 (€10) vs $10 (€8)). You also skip the drive itself — no traffic stress, no parking, and you can use the time to work, nap, or catch up on a series with the onboard Wi-Fi.
Direct coaches are operated by National Express.
Driving is still worth considering if you're travelling with bulky luggage, need flexibility on departure times, or plan to stop along the way.
Swansea to Carmarthen Bus Timetables
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator National Express | Departure Time 04:00PM | Arrival Time 04:45PM | Duration 0h45 | Departure days Mon, Tue, Wed, Fri, Sat, Sun | Cheapest price $11 |
Operator National Express | Departure Time 04:15PM | Arrival Time 05:00PM | Duration 0h45 | Departure days Tue, Wed, Thu | Cheapest price $13 |
Operator National Express | Departure Time 04:45PM | Arrival Time 05:30PM | Duration 0h45 | Departure days Mon, Fri | Cheapest price $11 |
Operator National Express | Departure Time 05:00PM | Arrival Time 05:45PM | Duration 0h45 | Departure days Mon, Tue, Wed, Thu, Sat, Sun | Cheapest price $11 |
Operator National Express | Departure Time 05:20PM | Arrival Time 06:05PM | Duration 0h45 | Departure days Fri | Cheapest price $12 |
Operator National Express | Departure Time 05:35PM | Arrival Time 06:20PM | Duration 0h45 | Departure days Sat, Sun | Cheapest price $13 |
Operator National Express | Departure Time 05:45PM | Arrival Time 06:30PM | Duration 0h45 | Departure days Fri | Cheapest price $13 |
Live departures
Swansea to Carmarthen bus times
The table below shows live departures for Swansea to Carmarthen buses for today, Thursday, June 18. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
NX112 | 4:15 PM Swansea, Quadrant Bus Station | 0h45 | 5:00 PM Carmarthen, Lammas Street (Rose and Crown Hotel) | 0 transfersDirect | |
NX508 | 5:00 PM Swansea, Quadrant Bus Station | 0h45 | 5:45 PM Carmarthen, Lammas Street (Rose and Crown Hotel) | 0 transfersDirect | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Swansea to Carmarthen 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.
Jun 19
Jun 20
Jun 21
Jun 22
Jun 23
Jun 24
Jun 25
Why should you book Swansea to Carmarthen buses with Omio?
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 Swansea to Carmarthen.
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 Swansea to Carmarthen.
Journey information
Overview: Bus from Swansea to Carmarthen
Buses from Swansea to Carmarthen run on average 2 times per day, taking around 58m. Cheap bus tickets for this journey start at $11 (€9) but you can travel from only $5 (€4) by train.
There are 2 buses per day. The earliest bus runs at 00:12, the last at 23:44. The fastest bus covers the 22 miles (36 km) distance in 45m.
Distance 22 miles (36 km) |
Average bus duration 58m |
Cheapest ticket price $11 (€9) |
Buses per day 2 |
Direct buses 2 |
Fastest bus 45m |
First bus 12:12 AM |
Last bus 11:44 PM |
Cheapest Month Dec |
Cheapest Day Tue |
High Season Jan - Mar |
Low Season Oct - Dec |
Busiest Day Thu |
Least Busy Day Sun |
Best time to book 1 day |
Bus providers: National Express from Swansea to CarmarthenYou can travel by bus between Swansea to Carmarthen with National Express for as low as $5 (€4). When you search for schedules and tickets, Omio will show you the best journey
National Express
FAQs: Bus from Swansea to Carmarthen
Find answers to the most common questions about traveling from Swansea to Carmarthen 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 Carmarthen, this guide helps you travel smarter and with confidence.

- National Express
- Assistance
- Priority seating
- Accessible toilets.
- 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.
- National Express
- Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
- National Express
- 10€ per additional bag.
popular bus stations
Popular bus stations from Swansea to Carmarthen
Most Swansea to Carmarthen buses use the Swansea, Quadrant Bus Station to Carmarthen, Lammas Street (Rose and Crown Hotel) station pair. Use this guide to compare Swansea and Carmarthen bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
Getting to Swansea, Quadrant Bus Station from Swansea city centre
Which Carmarthen station do buses from Swansea arrive at?
Getting to Carmarthen, Lammas Street (Rose and Crown Hotel) from Carmarthen city centre
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.
Most popular bus connections from Swansea
More options for your journey from Swansea to Carmarthen
Here are some other resources that might have the information you need

