Bus London to Carmarthen: Compare prices and save money

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

$28

tomorrow

Friday

$56

Saturday

$38

Sunday

$38

Monday

$35

Tuesday

$28

Cheapest bus trips today
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	6h 30m	10:30 AM	London	Victoria Coach Station	5:00 PM	Carmarthen	Bus Station		Economy	$28	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/24/2025 10:30:00 AM to Bus Station, Carmarthen (United Kingdom) arriving at 12/24/2025 5:00:00 PM. 50 Economy ticket for $28 per person are available. Travel duration is 6h 30m
	National Express	5h 45m	12:00 PM	London	Victoria Coach Station	5:45 PM	Carmarthen	Bus Station		Economy	$31	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/24/2025 12:00:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/24/2025 5:45:00 PM. 50 Economy ticket for $31 per person are available. Travel duration is 5h 45m

Cheapest bus trips Friday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00 PM	London	Victoria Coach Station	5:45 PM	Carmarthen	Bus Station		Economy	$56	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/26/2025 12:00:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/26/2025 5:45:00 PM. 50 Economy ticket for $56 per person are available. Travel duration is 5h 45m

Did you know that if you travel from London to Carmarthen via Reading, you can save more than $8? You can find the corresponding connections below.
- National Express
  
  7h 15m
  
  0
  
  10:30 AM
  
  London
  Victoria Coach Station
  
  12:05 PM
  
  Reading
  Mereoak Park & Ride
  
  0
  
  Economy
  
  $14
  
  A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/28/2025 10:30:00 AM to Mereoak Park & Ride, Reading (United Kingdom) arriving at 12/28/2025 12:05:00 PM. 50 Economy ticket for $14 per person are available. Travel duration is 1h 35m
- National Express
  
  4h 30m
  
  0
  
  1:15 PM
  
  Reading
  Mereoak Park & Ride
  
  5:45 PM
  
  Carmarthen
  Bus Station
  
  0
  
  Economy
  
  $34
  
  A Bus from National Express goes from Mereoak Park & Ride, Reading (United Kingdom) at 12/28/2025 1:15:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/28/2025 5:45:00 PM. 50 Economy ticket for $34 per person are available. Travel duration is 4h 30m
Travel time is 1h 30m longer, but you will save $8

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 PM	London	Victoria Coach Station	5:45 PM	Carmarthen	Bus Station		Economy	$38	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/27/2025 12:00:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/27/2025 5:45:00 PM. 50 Economy ticket for $38 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 PM	London	Victoria Coach Station	5:45 PM	Carmarthen	Bus Station		Economy	$38	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/28/2025 12:00:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/28/2025 5:45:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 5h 45m

Cheapest bus trips Monday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	National Express	5h 45m	12:00 PM	London	Victoria Coach Station	5:45 PM	Carmarthen	Bus Station		Economy	$35	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/29/2025 12:00:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/29/2025 5:45:00 PM. 50 Economy ticket for $35 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 PM	London	Victoria Coach Station	5:45 PM	Carmarthen	Bus Station		Economy	$28	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/30/2025 12:00:00 PM to Bus Station, Carmarthen (United Kingdom) arriving at 12/30/2025 5:45:00 PM. 50 Economy ticket for $28 per person are available. Travel duration is 5h 45m
	National Express	6h 30m	10:30 AM	London	Victoria Coach Station	5:00 PM	Carmarthen	Bus Station		Economy	$32	A Bus from National Express goes from Victoria Coach Station, London (United Kingdom) at 12/30/2025 10:30:00 AM to Bus Station, Carmarthen (United Kingdom) arriving at 12/30/2025 5:00:00 PM. 50 Economy ticket for $32 per person are available. Travel duration is 6h 30m

Best Price Offer: The price for the cheapest bus from London to Carmarthen is $18 on 1/6/2026. Flexible travelers 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 buses from London to Carmarthen. Sunday 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 buses from London to Carmarthen, while Morning sees the fewest connections between London and Carmarthen, with 2 offers.

Facts about the bus 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 $18!

Cheapest Bus	$18
Fastest Bus	5h 45m
Earliest Bus	10:30 AM
Latest Bus	12:00 PM
Daily Bus Routes	1 Ø
Distance	180.9 miles
Bus Companies	National Express

Cheapest bus connections from London to Carmarthen

Every day, 1 buses from 1 bus companies leave London for Carmarthen: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 12/24/2025 and for the following days.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday 12/21

Monday 12/22

Tuesday 12/23

Wednesday 12/24

$28

Thursday 12/25

Friday 12/26

$56

Saturday 12/27

$38

Sunday 12/28

$38

Monday 12/29

$35

Tuesday 12/30

$28

Wednesday 12/31

$35

Thursday 01/01

$40

Friday 01/02

$38

Saturday 01/03

Sunday 01/04

$28

Monday 01/05

Tuesday 01/06

$18

Wednesday 01/07

$18

Thursday 01/08

Friday 01/09

$22

Saturday 01/10

$18

Sunday 01/11

Monday 01/12

$18

Tuesday 01/13

Wednesday 01/14

$18

Thursday 01/15

$22

Friday 01/16

Saturday 01/17

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 $18, Monday is the cheapest day for a bus from London to Carmarthen. Sunday instead is the most expensive day with prices starting from $28.

Morning is the cheapest day time for bus tickets from London to Carmarthen, with $28. Afternoon is the most expensive time of the day with prices starting from $28.

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 buses 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	$28
Fastest Bus	5h 45m
Earliest Bus	10:30 AM
Last Bus	12:00 PM
Daily Connections	1 Ø
Found on	12/21/2025

All bus stations and stops in London and Carmarthen

In the map below, you can see where to find all bus stations in London and Carmarthen.

Victoria Coach Station

Buckingham Palace Rd 164

Finchley Road Station

Finchley Road

Marble Arch

Oxford St 550

Stratford Bus 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 buses 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 bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $18 and takes 6h 30m to reach Carmarthen. Compare offers to save money!

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

This route is offered by 1 companies with a range of ticket prices between $18 and $56. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Carmarthen.

On average, how many connections are available from London to Carmarthen each day?

Every day, the London to Carmarthen bus route is served by approximately 1 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from London to Carmarthen take?

The fastest bus from London to Carmarthen is offered by National Express and takes 5h 45m. Bus tickets for this connection cost $31. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from London to Carmarthen?

The earliest bus arriving in Carmarthen from London starts at 10:30 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

What time is the last bus from London to Carmarthen?

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

Which bus companies operate the London Carmarthen route?

When traveling by bus from London to Carmarthen, passengers can travel with National Express. With our search, you can compare all available bus tickets to book the one that works 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 London to Carmarthen bus route?

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the London Carmarthen bus route free of charge. Simply use our search to find a bus 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 traveling 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!