Great Western Railway
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London to Carmarthen by train
It takes an average of 3h 57m to travel from London to Carmarthen by train, over a distance of around 181 miles (291 km). There are normally 17 trains per day traveling from London to Carmarthen and tickets for this journey start from $55.97 when you book in advance.
| First train | 5:16 am | |
|---|---|---|
| Last train | 5:48 pm | |
| Departure station | London | |
| Arrival station | Carmarthen | |
| Journey time | From 3h 33m | |
| Distance | 181 miles (291 km) | |
| Frequency | 17 trains per day | |
| Changes | Direct trains available | |
| Price | From $55.97 | |
| Train operators |
What you need to know about the train journey from London to Carmarthen
Want to find out more about taking the train from London to Carmarthen? Look no further.
The average journey time from London to Carmarthen is around 3 hours 57 minutes. Around 17 trains run on this route each day.
There are direct trains from London to Carmarthen.
You can find tickets on this route from $55.97. Booking in advance is often a good way to save money on your tickets.
Use our Journey Planner to compare ticket prices and get the cheapest fares.
What do people frequently ask about the train journey from London to Carmarthen?
Want to know more about your journey from London to Carmarthen? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.
Is there a direct train from London to Carmarthen?
How far is Carmarthen from London by train?
Can I get from London to Carmarthen without flying?
What is the best way to get from London to Carmarthen?
When is the first train from London to Carmarthen?
When is the last train from London to Carmarthen?
How often do trains run from London to Carmarthen?
How far in advance can I book tickets from London to Carmarthen?
Looking for a return trip from London to Carmarthen?
How do I find cheap train tickets from London to Carmarthen?
Planning a trip to the UK soon? As most UK train companies increase their prices as the departure date approaches, our Trainline team of experts have put together these tips to help you find the cheapest tickets.
1. Book in advance
Train tickets from London to Carmarthen start at $55.97§ one way for a Standard Class ticket if you book in advance. UK train companies usually release Advance tickets up to 12 weeks ahead of time and these can be cheaper than tickets bought on the day of travel.
2. Sign up to Ticket Alert
If you're planning a trip more than 12 weeks ahead, sign up to our Ticket Alert to get notified when Advance tickets are released for your travel date.
3. Book split tickets
Our handy feature SplitSave will ‘split’ your train journey into multiple tickets, which can be much cheaper than buying a single ticket. Find out more about split tickets.
4. Travel Off-Peak
If you can be flexible with your travel times, Off-Peak and Super Off-Peak tickets are usually cheaper than Anytime tickets in the UK. Generally, Off-Peak times are any time at weekends and outside of Monday to Friday morning and evening rush hours.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.
§Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.
* Based on European average monthly visitors to Trainline’s app and website from 1.1.2023 to 10.31.2023 vs other independent retailers.