Carmarthen to London bus with National Express

Sun 07 Jun
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National Express
Mid Wales Travel
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2,000+ travel companies
National Express
Mid Wales Travel
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BlaBlaCar Bus
2,000+ travel companies
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The cheapest and fastest coaches from Carmarthen to London

Showing times and prices for 07 Jun

Cheapest price

£33

Average price

£38

Fastest journey

5 h 45 m

Average duration

6 h 26 m

Buses per day

4

Distance

291 km

Cheap tickets

The best way to find a cheap coach ticket from Carmarthen to London is to book your journey as far in advance as possible and to avoid travelling at rush hour.

The average ticket from Carmarthen to London will cost around £38 if you buy it on the day, but you can find cheap coach tickets today for only £33.

Fast coaches

Of the 4 buses that leave Carmarthen for London every day 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

These direct buses cover the 291 km distance in an average of 6 h 26 m but if you time it right, some buses will get you there in just 5 h 45 m .

The slowest buses will take 7 h 5 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.

  • National ExpressNX508
    10:555h45
    Carmarthen, Lammas Street (Rose and Crown Hotel)
    16:40London, Earl's Court
    £331One-way
    0 changes
  • National ExpressNX508
    10:556h10
    Carmarthen, Lammas Street (Rose and Crown Hotel)
    17:05London, Victoria Coach Station
    £331One-way
    0 changes
  • National ExpressNX112 · NX507
    8:406h45
    Carmarthen, Lammas Street (Rose and Crown Hotel)
    15:25London, Earl's Court
    £431One-way
    1 change
  • National ExpressNX112 · NX507
    8:407h05
    Carmarthen, Lammas Street (Rose and Crown Hotel)
    15:45London, Victoria Coach Station
    £431One-way
    1 change

Travel Information

Compare train and coach for Carmarthen to London

Omio recommends booking the train as it is the most popular option from Carmarthen to London among Omio's users. If you are prioritising price take the coach with prices starting from £17. For those with little time consider booking a train which can get you there in 3h 54m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.1 - 0.3kg. The ticket price range depends on the travel mode: a coach costs an average of £17, and a train costs an average of £54.

Distance: 291 km

Compare bus with

Coach
Most popular
Train

£24

Average Price

Cheapest

£65

Average Price

6h 38m

Average total duration

6h 8m

Onboard

+

30m

Additional time*

4h 24m

Average total duration

Fastest

3h 54m

Onboard

+

30m

Additional time*

0.3 - 0.7kg

CO2 emissions

0.1 - 0.3kg

CO2 emissions

Lowest
National Express

Most popular bus company

Great Western Railway

Most popular train company

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

Live departures

Carmarthen to London bus times

The table below shows live departures for Carmarthen to London coaches for today, Saturday 6 June. You can also manually refresh the results below to see updated coach journeys.

Last updated at
ProviderDepartsDurationArrivesChanges
Tickets
National ExpressNX112 · NX507
On time
8:40 Carmarthen, Lammas Street (Rose and Crown Hotel)
7h05
15:45 London, Victoria Coach Station
1 change
National ExpressNX112 · NX5078:40 Carmarthen, Lammas Street (Rose and Crown Hotel)
6h45
15:25 London, Earl's Court1 change
National ExpressNX50810:55 Carmarthen, Lammas Street (Rose and Crown Hotel)
6h10
17:05 London, Victoria Coach Station0 changesdirect
National ExpressNX50810:55 Carmarthen, Lammas Street (Rose and Crown Hotel)
5h45
16:40 London, Earl's Court0 changesdirect

This is the last bus of the day.

Find all the dates and times for this journey

Compare prices and tickets Carmarthen to London by train or coach

Compare train and coach 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.

Sat
06 Jun
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Why should you book Carmarthen to London coaches with Omio?

National Express as well as Mid Wales Travel offer coaches services from Carmarthen to London.
Omio is an official ticket reseller for all your travel options from Carmarthen to London.

Why book with Omio vs National Express?

  • Compare with other providers: On Omio, you can not only buy tickets for National Express, but also compare tickets for the likes of Mid Wales Travel to find the best option for your trip from Carmarthen to London.
  • 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 Carmarthen to London.

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 Carmarthen to London.

Journey information

Overview: Bus from Carmarthen to London

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of bus

Buses from Carmarthen to London run on average 3 times per day, taking around 6h 8m. Cheap bus tickets for this journey start at £17 if you book in advance.

There are 1 coaches per day. The earliest coach runs at 03:27, the last at 22:49. The fastest coach covers the 291 km distance in 6h 10m.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
291 km
Average bus duration
6h 8m
Cheapest ticket price
£17
Buses per day
3
Direct buses
1
Fastest bus
6h 10m
First bus
3:27
Last bus
22:49
Cheapest Month
Mar
Cheapest Day
Tue
High Season
Jan - Mar
Low Season
Apr - Jun
Busiest Day
Mon
Least Busy Day
Sat
Best time to book
56 days
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

Bus providers: National Express, Mid Wales Travel from Carmarthen to LondonYou can travel by bus between Carmarthen to London with National Express, Mid Wales Travel for as low as £17. When you search for schedules and tickets, Omio will show you the best journey

National Express

About
National Express is the UK’s leading long-distance coach company, operating over 550 services per day and serving more than 900 destinations nationwide. It also runs frequent services to major UK airports — including Heathrow, Gatwick, Stansted, Luton, and Bristol — 24 hours a day. All National Express coaches are air-conditioned and offer free Wi-Fi and onboard entertainment. Most vehicles are equipped with seat belts and power outlets at every seat, allowing you to charge your phone or laptop during your journey. Ticket options include Restricted Fare, Standard Fare, and Fully Flexible Fare, with the latter providing maximum flexibility for cancellations or changes.
Luggage & cancellation policy
Average Duration
6h 10m
Cheapest Price
£17
National Express frequency
2 a day
Luggage included
Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Additional luggage
10€ per additional bag.
Cancellation Policy
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.
Amenities on board the bus
Wifi
Food sold onboard
Seat reservation
Toilets
USB plugs
Accessibility
Assistance; Priority seating; Accessible toilets.
Bikes
Folding Bikes are allowed; non-folding bikes are not allowed.

Mid Wales Travel

Luggage & cancellation policy
Average Duration
25h 42m
Mid Wales Travel frequency
1 a day

FAQs: Carmarthen to London coach

Find answers to the most common questions about traveling from Carmarthen to London by coach. 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 coach, the cheapest option, or tips for making the most of your visit at London, this guide helps you travel smarter and with confidence.

FAQs
Cheap coach tickets from Carmarthen to London can start from as little as £17 when you book in advance. The average coach ticket price for Carmarthen to London is £24; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by coach from Carmarthen to London is 6h 10m to travel the 291 km long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest coach from Carmarthen to London leaves at 3:27. Plan your trip with the Journey Planner from Omio.
The latest coach from Carmarthen to London leaves at 22:49.
Yes, there are 1 direct coaches a day from Carmarthen to London with National Express. Schedules can vary on holidays or weekends with fewer direct coaches.
When taking a coach from Carmarthen to London, you can count on National Express, Mid Wales Travel for the best way to get you to London. You can also check all possible coach companies who offer a service between Carmarthen and London and compare the amenities they offer before buying a coach ticket.
When departing from Carmarthen , you have various coach station options to start your route from including Carmarthen, Lammas Street (Rose and Crown Hotel), St Clears, Pentre Road . When arriving in London , you can end your route in coach stations like London, Victoria Coach Station, London, Eastbourne Terrace (Paddington Station), London, Heathrow Airport Terminals 2 & 3, London, Heathrow Airport Terminal 5, London, Earl's Court, London, Heathrow Airport Terminal 4, London, York Road (London Eye), London, Hammersmith Bridge Road, London, Baker Street Station, London, Bishopsgate (Liverpool Street Station - Stop G), London, Greenford Roundabout, London, Stratford City Bus Station, London, Western Ave / Friary Road, London, Southwark Street / Blackfriars Road, London, Elephant and Castle, London, New Cross Gate, London, Lewisham, London, Finchley Road ("Subway" restaurant), London, Shoreditch High St / Bethnal Green Road (Stop L), London, Kingsland Road / Middleton Road, London, Lithos Road.Passengers board the coach most frequently from Carmarthen, Lammas Street (Rose and Crown Hotel), which is located around 0 away from the city centre, and they get off the coach at London, Victoria Coach Station, located 2 away from the city centre.
A trip to London from Carmarthen is worth doing but not as a day trip with a journey time of 6h 10m each way. Check with Omio app the best way to travel.
The cheapest month for a coach from Carmarthen to London is March.
It's helpful to compare your options as there are 2 ways to travel between Carmarthen and London including taking a train and coach.
Yes, the following accessibility options are available when taking the coach from Carmarthen to London:
  • National Express
    • Assistance
    • Priority seating
    • Accessible toilets.
Yes, there are bathrooms on board the coach from Carmarthen to London for coach company National Express.
Whether you can cancel your coach ticket from Carmarthen to London depends on the coach companies:
  • 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.
Yes, bikes are allowed on board the coach with coach company National Express.
Tickets are often cheaper when booked early. Traveling during off-peak hours or on weekdays can help you save money. Sort results by price to quickly identify the most affordable options. Check for promotions or discounts available on our website and app.
No, there is no food available to purchase on board the coach from Carmarthen to London.
Yes, the following luggage options are included when booking a coach ticket from Carmarthen to London:
  • National Express
    • Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Yes, the following additional luggage options are available when booking a coach ticket from Carmarthen to London:
  • National Express
    • 10€ per additional bag.
Unfortunately, pets are not allowed on the coach from Carmarthen to London.
You can reserve your seat on the coach from Carmarthen to London with the following coach company: National Express
Yes, there are USB plugs on board the coach from Carmarthen to London with the following coach company: National Express.
Yes, there is Wifi on board the coach from Carmarthen to London with the following coach company: National Express.

popular bus stations

Important Stations and Airports in Carmarthen and London

Carmarthen
London
The major coach station for departures in Carmarthen is Carmarthen, Lammas Street (Rose and Crown Hotel). Find all the information you need to know about services, amenities and connections at Carmarthen, Lammas Street (Rose and Crown Hotel) for your trip from Carmarthen to London.
Carmarthen, Lammas Street (Rose and Crown Hotel)Accessibility
Amenities at bus station
AccessibilityAccessibility
information
Accessibility
Accessibility
  • The place has an entrance that is wheelchair-accessible

More options for your journey from Carmarthen to London

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HomeCoachesCoach tickets to London Carmarthen to London bus

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