Travel Information to London from Carmarthen
| 180 miles (290 km) | |
| Train or bus | |
| $19 - $44 | |
| Bus • $19 (€17) • 6 h 10 min | |
| Train • $44 (€40) • 3 h 32 min | |
| National Express or Great Western Rail |
Travel 180 miles (290 km) by train or bus to London from Carmarthen. The most popular travel companies which serve this journey are National Express or Great Western Rail among others. Travelers can even take a direct bus or train from Carmarthen to London.
Travel optionsfrom Carmarthen to London
How to get from Carmarthen to London by train, bus or flight.
Our recommendation
The best way to travel from Carmarthen to London is by taking a bus because it’s the best combination of price and speed.
NX508Cheapest
NX508Fastest
L65016+
P22807Other options
P22801
P22805
L64996+
P22799
NX112 · NX507Find all the dates and times for this journey by train, bus, flight, and ferry .
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FAQs: Travel from Carmarthen to London
Travel to London easily. Whether you want fast, cheap or something entirely different, our travel experts have collected everything you need to know so you can find the best option from Carmarthen to London.

There are 2 ways to get from Carmarthen to London: train or bus.
The cheapest way to go to London from Carmarthen is by taking a bus, which costs on average $19 (€17).
This is compared to other ways of getting from Carmarthen to London:
Taking a bus costs $25 (€22) less than taking a train, which costs on average $44 (€40) for the same trip.
The fastest way to get to London from Carmarthen is by train with an average travel time of 3 h 32 min.
Other travel options to London take longer:
Bus takes on average 6 h 10 min.
The distance from Carmarthen to London is approximately 180 miles (290 km).
The average frequency per day from Carmarthen to London is:
- Around 2 buses per day.
- Around 6 trains per day.
However, we recommend checking specific travel dates for your journey between Carmarthen and London as scheduled services by train or bus can vary by season or day of the week.
These are the most popular departure and arrival points from Carmarthen to London:
- Buses from Carmarthen to London most often leave from Carmarthen, Blue Street and arrive in London, Victoria Coach Station.
- Trains mostly leave from Carmarthen and tend to arrive in London Euston.
Omio works with many trusted partners that can help you travel the best way from Carmarthen to London:
- You can go to London from Carmarthen by bus with National Express. You'll see cheap bus tickets for $19 (€17) with National Express from Carmarthen to London on Omio.
- You can travel between Carmarthen and London by train with Great Western Rail, Transport for Wales or first_great_western. You can find cheap tickets on Omio for $44 (€40) with Great Western Rail from Carmarthen to London.
Yes, there are direct services available from Carmarthen to London with the following travel companies:
- 1 direct bus per day with National Express.
- Direct trains with Great Western Rail or first_great_western with 2 direct trains per day.
Direct services tend to save you time and add more convenience in getting you to London as you won't need to transfer at another stop in between, so it's worth paying attention to before booking your tickets to London from Carmarthen.
Travelling from Carmarthen to London: related information
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