Which bus from Carmarthen to London is the cheapest?

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Compare all timetables for the bus from Carmarthen to London

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

today
$25
tomorrow
$19
Tuesday
$19
Wednesday
$19
Thursday
$22
Friday
$23
Saturday
$22

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 10:55 AM Carmarthen Bus Station 4:40 PM London Earl's Court  Economy $25
National Express 6h 10m 10:55 AM Carmarthen Bus Station 5:05 PM London Victoria Coach Station  Economy $25
National Express 6h 45m 8:40 AM Carmarthen Bus Station 3:25 PM London Earl's Court  Economy $32
National Express 7h 5m 8:40 AM Carmarthen Bus Station 3:45 PM London Victoria Coach Station  Economy $32
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $7? You can find the corresponding connections below.
    • National Express
      8h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $11
      • Waiting Time 1h 55m
    • FlixBus
      3h 50m
      0
      1:05 PM
      Cardiff
      Kingsway Bus Stop
      4:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 2h 30m longer, but you will save $7

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 10m 10:55 AM Carmarthen Bus Station 5:05 PM London Victoria Coach Station  Economy $19
National Express 7h 5m 8:40 AM Carmarthen Bus Station 3:45 PM London Victoria Coach Station  Economy $25
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $3? You can find the corresponding connections below.
    • National Express
      7h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      11:55 AM
      Cardiff
      Kingsway Bus Stop
      3:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 1h 5m longer, but you will save $3

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 10:55 AM Carmarthen Bus Station 4:40 PM London Earl's Court  Economy $19
National Express 6h 10m 10:55 AM Carmarthen Bus Station 5:05 PM London Victoria Coach Station  Economy $19
National Express 6h 5m 8:40 AM Carmarthen Bus Station 2:45 PM London Earl's Court  Economy $22
National Express 6h 25m 8:40 AM Carmarthen Bus Station 3:05 PM London Victoria Coach Station  Economy $25
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $3? You can find the corresponding connections below.
    • National Express
      7h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      11:55 AM
      Cardiff
      Kingsway Bus Stop
      3:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 1h 30m longer, but you will save $3

Cheapest bus trips Wednesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 10m 10:55 AM Carmarthen Bus Station 5:05 PM London Victoria Coach Station  Economy $19
National Express 6h 25m 8:40 AM Carmarthen Bus Station 3:05 PM London Victoria Coach Station  Economy $25
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $3? You can find the corresponding connections below.
    • National Express
      7h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      11:55 AM
      Cardiff
      Kingsway Bus Stop
      3:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 1h 5m longer, but you will save $3

Cheapest bus trips Thursday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 5h 45m 10:55 AM Carmarthen Bus Station 4:40 PM London Earl's Court  Economy $22
National Express 6h 10m 10:55 AM Carmarthen Bus Station 5:05 PM London Victoria Coach Station  Economy $22
National Express 6h 5m 8:40 AM Carmarthen Bus Station 2:45 PM London Earl's Court  Economy $33
National Express 6h 25m 8:40 AM Carmarthen Bus Station 3:05 PM London Victoria Coach Station  Economy $33
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $6? You can find the corresponding connections below.
    • National Express
      7h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      11:55 AM
      Cardiff
      Kingsway Bus Stop
      3:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 1h 30m longer, but you will save $6

Cheapest bus trips Friday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 6h 20m 8:25 AM Carmarthen Bus Station 2:45 PM London Earl's Court  Economy $23
National Express 6h 40m 8:25 AM Carmarthen Bus Station 3:05 PM London Victoria Coach Station  Economy $23
National Express 6h 5m 10:55 AM Carmarthen Bus Station 5:00 PM London Earl's Court  Economy $25
National Express 6h 25m 10:55 AM Carmarthen Bus Station 5:20 PM London Victoria Coach Station  Economy $25
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $7? You can find the corresponding connections below.
    • National Express
      7h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      11:55 AM
      Cardiff
      Kingsway Bus Stop
      3:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 1h 10m longer, but you will save $7

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 10:55 AM Carmarthen Bus Station 4:40 PM London Earl's Court  Economy $22
National Express 6h 10m 10:55 AM Carmarthen Bus Station 5:05 PM London Victoria Coach Station  Economy $22
National Express 6h 45m 8:40 AM Carmarthen Bus Station 3:25 PM London Earl's Court  Economy $33
National Express 7h 5m 8:40 AM Carmarthen Bus Station 3:45 PM London Victoria Coach Station  Economy $33
  • Did you know that if you travel from Carmarthen to London via Cardiff, you can save more than $6? You can find the corresponding connections below.
    • National Express
      7h 15m
      0
      8:40 AM
      Carmarthen
      Bus Station
      11:10 AM
      Cardiff
      Coach Station
      0
      National Express
      Economy
      $10
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      11:55 AM
      Cardiff
      Kingsway Bus Stop
      3:55 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $7
    Travel time is 1h 30m longer, but you will save $6

Best Price Offer: The price for the cheapest bus from Carmarthen to London is $17 on 5/28/2026. Flexible travelers save on ticket prices.


Facts about the bus from Carmarthen to London

Compare all providers like National Express that travel 3 times every day by bus from Carmarthen to London in one click! Book your bus ticket from Carmarthen to London starting from $17!

Cheapest Bus $17
Fastest Bus 5h 45m
Earliest Bus 8:40 AM
Latest Bus 10:55 AM
Daily Bus Routes 3 Ø
Distance 180.9 miles
Bus Companies National Express

Cheapest bus connections from Carmarthen to London

Every day, 3 buses from 1 bus companies leave Carmarthen for London: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 05/10/2026 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 05/10
$25
Monday 05/11
$19
Tuesday 05/12
$19
Wednesday 05/13
$19
Thursday 05/14
$22
Friday 05/15
$23
Saturday 05/16
$22
Sunday 05/17
$19
Monday 05/18
$19
Tuesday 05/19
$19
Wednesday 05/20
$19
Thursday 05/21
$19
Friday 05/22
$19
Saturday 05/23
$19
Sunday 05/24
$22
Monday 05/25
$22
Tuesday 05/26
$19
Wednesday 05/27
$19
Thursday 05/28
$17
Friday 05/29
$18
Saturday 05/30
$19
Sunday 05/31
$22
Monday 06/01
$19
Tuesday 06/02
$19
Wednesday 06/03
$19
Thursday 06/04
$19
Friday 06/05
$19
Saturday 06/06

How to save money travelling from Carmarthen to London

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 Carmarthen to London 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 Carmarthen to London, 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 Carmarthen to London are also emptier.

Beloved bus companies from Carmarthen to London

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

National Express from Carmarthen to London

National Express

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

Cheapest Price $19
Fastest Bus 5h 45m
Earliest Bus 8:40 AM
Last Bus 10:55 AM
Daily Connections 3 Ø
Found on 5/5/2026

All bus stations and stops in Carmarthen and London

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

Service and Comfort on the bus from Carmarthen to London

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

FAQs about the Carmarthen to London bus

How much does a Carmarthen London bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $17 and takes 6h 10m to reach London. Compare offers to save money!

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

This route is offered by 1 companies with a range of ticket prices between $17 and $33. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to London.

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

Every day, the Carmarthen to London bus route is served by approximately 3 connections. With our search, you can compare bus times to find the perfect trip.

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

The fastest bus from Carmarthen to London is offered by National Express and takes 5h 45m. Bus tickets for this connection cost $25. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Carmarthen to London?

The earliest bus arriving in London from Carmarthen starts at 8:40 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 Carmarthen to London?

The latest bus trip departing from Carmarthen for London starts at 10:55 AM. 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 Carmarthen London route?

When traveling by bus from Carmarthen to London, 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 Carmarthen and London?

You can check all the direct connections between Carmarthen and London 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 Carmarthen to London 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 Carmarthen London 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 Carmarthen London 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 Carmarthen to London on your planned travel date.

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

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 3 daily trips between Carmarthen and London. 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 Carmarthen to London?

Prices and availability for 3 trips between Carmarthen and London 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 Carmarthen to London

Economy
Economy

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

More bus routes to Carmarthen and to London

Here’s an overview of the most popular bus routes to Carmarthen and to London. Simply click on the connection of your choice, and you will find all the details about your bus route!
Bus Cardiff to Carmarthen Bus Cardiff to Carmarthen
Bus to Carmarthen from Glasgow Bus to Carmarthen from Glasgow
Bus Reading - Carmarthen Bus Reading - Carmarthen
Buses Swansea - Carmarthen Buses Swansea - Carmarthen
Buses Karlsruhe - London Buses Karlsruhe - London
Buses Lodz to London Buses Lodz to London
Bus Avignon - London Bus Avignon - London
Bus Ipswich - London Bus Ipswich - London
Popular Airport Shuttles to Carmarthen and to London
CheckMyBus › Buses in United Kingdom › Bus to Carmarthen › Bus to London

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