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There are 7 ways to get from London Heathrow Airport (LHR) to Carmarthen by train, bus, night bus, car or plane

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2rio's travel planner.

Recommended option

Train  •  5h 9m

  1. Take the train from London Paddington to Swansea
  2. Take the train from Swansea to Carmarthen

$140 - $262

Cheapest option

Bus  •  5h 55m

  1. Take the bus from Reading to Carmarthen National Express

$25 - $32

5 alternative options

Train via Newport (S Wales)  •  5h 51m

  1. Take the train from Reading to Newport (S Wales)
  2. Take the train from Newport (S Wales) to Carmarthen

$100 - $210

Night bus, train  •  5h 20m

  1. Take the night bus from Heathrow Central Bus Station to Newport, Queensway M7 / ...
  2. Take the train from Newport (S Wales) to Carmarthen

$58 - $125

Drive  •  3h 15m

  1. Drive from London Heathrow Airport (LHR) to Carmarthen 200 miles

$40 - $65

Fly to Cardiff, train  •  6h 53m

  1. Fly from London Heathrow (LHR) to Cardiff (CWL) LHR - CWL
  2. Take the train from Cardiff Central to Carmarthen

$108 - $482

Fly to Manchester, train  •  7h 32m

  1. Fly from London Heathrow (LHR) to Manchester (MAN) LHR - MAN
  2. Take the train from Wilmslow to Carmarthen

$156 - $384

Questions & Answers

The cheapest way to get from London Heathrow Airport (LHR) to Carmarthen is to bus which costs £18 - £25 and takes 5h 55m.

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The quickest way to get from London Heathrow Airport (LHR) to Carmarthen is to drive which costs £30 - £50 and takes 3h 15m.

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No, there is no direct bus from London Heathrow Airport (LHR) to Carmarthen. However, there are services departing from Heathrow Airport London T2,3 and arriving at Carmarthen via Reading. The journey, including transfers, takes approximately 5h 55m.

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No, there is no direct train from London Heathrow Airport (LHR) to Carmarthen. However, there are services departing from Heathrow Terminals 2 & 3 and arriving at Carmarthen via London Paddington and Swansea. The journey, including transfers, takes approximately 5h 9m.

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The distance between London Heathrow Airport (LHR) and Carmarthen is 168 miles. The road distance is 200 miles.

Get driving directions

The best way to get from London Heathrow Airport (LHR) to Carmarthen without a car is to train which takes 5h 9m and costs £100 - £210.

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It takes approximately 5h 9m to get from London Heathrow Airport (LHR) to Carmarthen, including transfers.

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London Heathrow Airport (LHR) to Carmarthen bus services, operated by National Express, depart from Reading station.

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London Heathrow Airport (LHR) to Carmarthen train services, operated by Great Western Railway, depart from London Paddington station.

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The best way to get from London Heathrow Airport (LHR) to Carmarthen is to train which takes 5h 9m and costs £100 - £210. Alternatively, you can bus, which costs £18 - £25 and takes 5h 55m.

Mode details

Map of how to get from London Heathrow Airport (LHR) to Carmarthen.
Launch map view
  • Distance: 168.2 miles
  • Duration: 5h 9m

What companies run services between London Heathrow Airport (LHR), England and Carmarthen, Wales?

You can take a train from London Heathrow Airport (LHR) to Carmarthen via London Paddington and Swansea in around 5h 9m. Alternatively, National Express operates a bus from London Heathrow Airport (LHR) to Carmarthen once daily. Tickets cost $16 - $22 and the journey takes 4h 20m.

Airlines
British Airways
Website
britishairways.com
Flights from London Heathrow to Cardiff via Dublin
Ave. Duration
4h
When
Thursday
Estimated price
$75 - $410
Flights from London Heathrow to Cardiff via Manchester, Dublin
Ave. Duration
6h 20m
When
Thursday
Estimated price
$80 - $430
Flights from London Heathrow to Manchester
Ave. Duration
1h 6m
When
Every day
Estimated price
$80 - $360
Aer Lingus
Website
aerlingus.com
Flights from London Heathrow to Cardiff via Dublin
Ave. Duration
3h 38m
When
Monday, Thursday, Friday, Saturday and Sunday
Estimated price
$85 - $420
KLM
Website
klm.com
Flights from London Heathrow to Cardiff via Amsterdam Schiphol
Ave. Duration
4h 30m
When
Monday, Tuesday, Wednesday, Thursday, Friday and Sunday
Estimated price
$180 - $700
Air France
Website
airfrance.com
Flights from London Heathrow to Cardiff via Paris CDG
Ave. Duration
4h 50m
When
Monday, Tuesday, Thursday, Friday, Saturday and Sunday
Estimated price
$95 - $420
Train operators
Great Western Railway
Website
gwr.com
Train from London Paddington to Swansea
Ave. Duration
2h 56m
Frequency
Hourly
Estimated price
$100 - $190
Website
gwr.com
Off-Peak Day Single
$50 - $80
Advanced Single
$55 - $80
Anytime Day Single
$100 - $190
Train from Swansea to Carmarthen
Ave. Duration
45m
Frequency
Twice daily
Estimated price
$17 - $35
Website
gwr.com
Off-Peak Day Single
$11 - $18
Advanced Single
$12 - $19
Anytime Day Single
$17 - $35
Train from Reading to Newport (S Wales)
Ave. Duration
1h 17m
Frequency
Hourly
Estimated price
$50 - $95
Website
gwr.com
Off-Peak Day Single
$28 - $45
Advanced Single
$30 - $45
Anytime Day Single
$50 - $95
Train from Newport (S Wales) to Carmarthen
Ave. Duration
2h 12m
Frequency
Once daily
Estimated price
$45 - $90
Website
gwr.com
Off-Peak Day Single
$26 - $40
Advanced Single
$28 - $40
Anytime Day Single
$45 - $90
Train from Cardiff Central to Carmarthen
Ave. Duration
1h 47m
Frequency
Once daily
Estimated price
$40 - $75
Website
gwr.com
Off-Peak Day Single
$23 - $35
Advanced Single
$25 - $35
Anytime Day Single
$40 - $75
Arriva Trains Wales
Phone
03333 211 202
Email
customer.relations@arrivatrainswales.co.uk
Website
arrivatrainswales.co.uk
Train from Swansea to Carmarthen
Ave. Duration
49m
Frequency
Hourly
Estimated price
$13 - $20
Website
arrivatrainswales.co.uk
Advanced Single
$7 - $10
Anytime Day Single
$13 - $20
First Anytime Day Single
$20 - $30
Train from Newport (S Wales) to Carmarthen
Ave. Duration
2h 6m
Frequency
Every 2 hours
Estimated price
$35 - $55
Website
arrivatrainswales.co.uk
Advanced Single
$17 - $24
Anytime Day Single
$35 - $55
First Anytime Day Single
$55 - $85
Train from Cardiff Central to Carmarthen
Ave. Duration
1h 46m
Frequency
Hourly
Estimated price
$30 - $50
Website
arrivatrainswales.co.uk
Advanced Single
$15 - $21
Anytime Day Single
$30 - $50
First Anytime Day Single
$45 - $75
Train from Wilmslow to Carmarthen
Ave. Duration
4h 41m
Frequency
Every 3 hours
Estimated price
$90 - $140
Website
arrivatrainswales.co.uk
Advanced Single
$40 - $60
Anytime Day Single
$90 - $140
First Anytime Day Single
$150 - $220
Bus operators
National Express

National Express Coaches are a quick and convenient way of travelling around the UK. Over 550 National Express coaches run on Britain's roads every day, serving over 900 destinations across the UK. National Express Coaches carry around 19 million passenger journeys every year. For added convenience, National Express operate coach services to all major UK airports 24 hours per day, and is on its way to being 100% wheelchair accessible. The company also has a 24-hour control centre that receives a GPS signal to update on location, speed and the temperature inside coaches, ensuring the smoothest journey possible.

Contact Details
Phone
+44 08717 818178
Website
nationalexpress.com
Bus from Reading to Carmarthen
Ave. Duration
4h 20m
Frequency
Once daily
Estimated price
$16 - $22
Website
National Express
Megabus UK
Phone
0871 266 3333
Email
enquiries@megabus.com
Website
uk.megabus.com
Night bus from Heathrow Central Bus Station to Newport, Queensway
Ave. Duration
2h 20m
Frequency
Twice daily
Estimated price
$22 - $40
Website
Megabus UK

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More Questions & Answers

There is no direct flight from London Heathrow Airport to Cardiff Airport. The quickest flight takes 3h 25m and has one stopover.

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London Heathrow Airport (LHR) to Carmarthen bus services, operated by National Express, arrive at Carmarthen station.

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London Heathrow Airport (LHR) to Carmarthen train services, operated by Arriva Trains Wales, arrive at Carmarthen station.

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Yes, the driving distance between London Heathrow Airport (LHR) to Carmarthen is 200 miles. It takes approximately 3h 15m to drive from London Heathrow Airport (LHR) to Carmarthen.

Get driving directions

Air France, British Airways, Flybe and two other airlines offer flights from London Heathrow Airport to Cardiff Airport.

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Book your London Heathrow Airport (LHR) to Carmarthen train tickets online with Rome2rio.

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Book your London Heathrow Airport (LHR) to Carmarthen bus tickets online with Distribusion and Distribusion.

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There are 470+ hotels available in Carmarthen. Prices start at $63 USD per night.

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