Bus and Coach from London to Carmarthen: Compare all prices

Compare all timetables for the bus from London to Carmarthen

Here is a selection of the cheapest bus trips from the schedule from London to Carmarthen from various bus operators like National Express for the next days.

today

£16

tomorrow

£18

Friday

£16

Saturday

£16

Sunday

£23

Monday

Tuesday

£14

Cheapest bus trips today
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00	London	Victoria Coach Station	17:45	Carmarthen	Bus Station		Economy	£16	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 04/02/2026 12:00:00 to Bus Station, Carmarthen (United Kingdom) arriving at 04/02/2026 17:45:00. 50 Economy ticket for £16 per person are available. Travel duration is 5h 45m
	National Express	6h 30m	10:30	London	Victoria Coach Station	17:00	Carmarthen	Bus Station		Economy	£24	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 04/02/2026 10:30:00 to Bus Station, Carmarthen (United Kingdom) arriving at 04/02/2026 17:00:00. 50 Economy ticket for £24 per person are available. Travel duration is 6h 30m

Cheapest bus trips tomorrow
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00	London	Victoria Coach Station	17:45	Carmarthen	Bus Station		Economy	£18	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 05/02/2026 12:00:00 to Bus Station, Carmarthen (United Kingdom) arriving at 05/02/2026 17:45:00. 50 Economy ticket for £18 per person are available. Travel duration is 5h 45m
	National Express	6h 30m	10:30	London	Victoria Coach Station	17:00	Carmarthen	Bus Station		Economy	£24	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 05/02/2026 10:30:00 to Bus Station, Carmarthen (United Kingdom) arriving at 05/02/2026 17:00:00. 50 Economy ticket for £24 per person are available. Travel duration is 6h 30m

Cheapest bus trips Friday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	6h 30m	12:00	London	Victoria Coach Station	18:30	Carmarthen	Bus Station		Economy	£16	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 06/02/2026 12:00:00 to Bus Station, Carmarthen (United Kingdom) arriving at 06/02/2026 18:30:00. 50 Economy ticket for £16 per person are available. Travel duration is 6h 30m

Cheapest bus trips Saturday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00	London	Victoria Coach Station	17:45	Carmarthen	Bus Station		Economy	£16	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 07/02/2026 12:00:00 to Bus Station, Carmarthen (United Kingdom) arriving at 07/02/2026 17:45:00. 50 Economy ticket for £16 per person are available. Travel duration is 5h 45m

Cheapest bus trips Sunday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00	London	Victoria Coach Station	17:45	Carmarthen	Bus Station		Economy	£23	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 08/02/2026 12:00:00 to Bus Station, Carmarthen (United Kingdom) arriving at 08/02/2026 17:45:00. 50 Economy ticket for £23 per person are available. Travel duration is 5h 45m

Cheapest bus trips Tuesday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00	London	Victoria Coach Station	17:45	Carmarthen	Bus Station		Economy	£14	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 10/02/2026 12:00:00 to Bus Station, Carmarthen (United Kingdom) arriving at 10/02/2026 17:45:00. 50 Economy ticket for £14 per person are available. Travel duration is 5h 45m
	National Express	6h 30m	10:30	London	Victoria Coach Station	17:00	Carmarthen	Bus Station		Economy	£19	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 10/02/2026 10:30:00 to Bus Station, Carmarthen (United Kingdom) arriving at 10/02/2026 17:00:00. 50 Economy ticket for £19 per person are available. Travel duration is 6h 30m

Best Price Offer: The price for the cheapest coach from London to Carmarthen is £14 on 10/02/2026. Flexible travellers save on ticket prices.

Frequency of bus connections between London and Carmarthen

See here how frequent the connections between London and Carmarthen are, during different times and days of the week.

Tuesday is the busiest day, with more than 2 daily coaches from London to Carmarthen. Friday has instead the fewest connections, with only 1 daily coaches between London and Carmarthen.

The busiest time of the day is the Afternoon, with 6 coaches from London to Carmarthen, while Morning sees the fewest connections between London and Carmarthen, with 3 offers.

Facts about coaches from London to Carmarthen

Compare all providers like National Express that travel 1 times every day by bus from London to Carmarthen in one click! Book your bus ticket from London to Carmarthen starting from £14!

Cheapest Bus	£14
Fastest Bus	5h 45m
Earliest Coach	10:30
Latest Coach	12:00
Daily Bus Connections	1 Ø
Distance	291.1 km
Coach Companies	National Express

Cheapest coach connections from London to Carmarthen

Every day, 1 buses from 1 coach companies leave London for Carmarthen: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 04/02/2026 and for the following days.

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Monday 02/02

Tuesday 03/02

Wednesday 04/02

£16

Thursday 05/02

£18

Friday 06/02

£16

Saturday 07/02

£16

Sunday 08/02

£23

Monday 09/02

Tuesday 10/02

£14

Wednesday 11/02

£14

Thursday 12/02

Friday 13/02

Saturday 14/02

Sunday 15/02

£18

Monday 16/02

Tuesday 17/02

£14

Wednesday 18/02

£16

Thursday 19/02

Friday 20/02

£14

Saturday 21/02

Sunday 22/02

£16

Monday 23/02

£14

Tuesday 24/02

Wednesday 25/02

£14

Thursday 26/02

Friday 27/02

£14

Saturday 28/02

Sunday 01/03

The cheapest time to travel from London to Carmarthen

See here on which day and which time of the day you can find the cheapest bus ticket from London to Carmarthen, for the next 30 days.

With a price starting from £14, Tuesday is the cheapest day for a coach from London to Carmarthen. Thursday instead is the most expensive day with prices starting from £18.

Afternoon is the cheapest day time for bus tickets from London to Carmarthen, with £14. Morning is the most expensive time of the day with prices starting from £19.

How to save money travelling from London to Carmarthen

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from London to Carmarthen in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from London to Carmarthen, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later coaches from London to Carmarthen are also emptier.

Beloved bus companies from London to Carmarthen

These are the most booked bus companies between London to Carmarthen from our users.

National Express from London to Carmarthen

Here you will find the key facts about the National Express bus route London to Carmarthen:

Cheapest Price	£14
Fastest Coach	5h 45m
Earliest Coach	10:30
Last Coach	12:00
Daily Connections	1 Ø
Found on	01/02/2026

All bus stations and stops in London and Carmarthen

The map below shows you where to find all the bus stations in London and Carmarthen.

Victoria Coach Station

Buckingham Palace Rd 164

Finchley Road Station

Finchley Road

Marble Arch

Oxford St 550

Stratford Coach Station

Hermit Road

Hammersmith

Hammersmith Bridge Rd

Bus Station

Blue St 4

Service and Comfort on the bus from London to Carmarthen

Want to know which seat classes are available on the coaches from London to Carmarthen? Or which bus companies serve the route London to Carmarthen? Below you will find answers to your questions.

FAQs about the London to Carmarthen bus

How much does a London - Carmarthen coach trip cost?

This depends on, among other things, the day and travel time. The cheapest ticket for the London - Carmarthen bus trip is available from £14 and takes 5h 45m. Compare offers and save money!

How much could I save by comparing buses from London to Carmarthen?

The connection London to Carmarthen is offered by 1 companies with ticket prices ranging from £14 to £24. Therefore, we suggest booking your ticket as soon as possible to ensure you will get the cheapest ticket price.

How many connections are available for the London - Carmarthen route on average every day?

Each day, the bus route from London to Carmarthen is offered by roughly 1 busses. By using our search, you can compare bus schedules and find your ideal trip.

How long does a bus to Carmarthen from London take?

The quickest coach from London to Carmarthen is provided by National Express and takes 5h 45m. Coach tickets for this connection cost £16. However, keep in mind that the connection can take longer due to traffic.

What time is the first bus from London to Carmarthen?

The earliest bus to Carmarthen departs from London at 10:30. In this context, information about departure times may differ on weekends and holidays. Simply use our search to find the exact times for your planned travel date.

What time is the last coach from London to Carmarthen?

The latest bus to Carmarthen departs from London at 12:00. Please note that departure times may differ on weekends and holidays. Simply use our search to find the exact times for your planned travel date.

Which bus companies serve the London - Carmarthen route?

Passengers looking to travel from London to Carmarthen can travel with National Express. Compare all available bus tickets with our search to book the trip that works best for you.

Is there a direct bus between London and Carmarthen?

You can check all the direct connections between London and Carmarthen by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: National Express.

What can I take with me on the bus to Carmarthen from London?

Depending on which provider you travel with, what you are allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the bus for the London Carmarthen bus route free of charge. Simply use our search to find a coach that is best suited to your needs for your planned travel date.

What equipment is available for the London Carmarthen bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make travelling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from London to Carmarthen on your planned travel date.

How does CheckMyBus find the best bus deals from London to Carmarthen?

CheckMyBus collaborates directly with companies around the world to provide you with the best options when searching for a trip. We retrieve their first-hand data to show you real-time prices, schedules, and seat availability for 1 daily trips between London and Carmarthen. With the most up-to-date information from verified sources, you can fairly compare all available options and choose the trip that suits you best.

How does CheckMyBus technology work for trips from London to Carmarthen?

Prices and availability for 1 trips between London and Carmarthen change constantly. To provide you with the most up-to-date information, we connect directly with bus operators, Online Travel Agencies (OTAs), and Global Distribution Systems (GDS) via real-time interfaces (APIs). The data collected from these sources undergoes strict quality checks, is processed within our infrastructure, and is then presented to you on our search results pages. Visit our About Us page to learn more.

Available seat classes which are offered on the bus route London to Carmarthen

Economy

The cheapest option available for your ticket, it usually comes with reclinable seats and AC.

More bus routes to London and to Carmarthen

Here’s an overview of the most popular bus routes to London and to Carmarthen. Simply click on the connection of your choice, and you will find all the details about your bus route!