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There are 6 ways to get from Heathrow Terminal 5 Underground Station 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  •  5 h 20 min

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

$143 - $266

Cheapest option

Bus  •  6 h 30 min

  1. Take the bus from Heathrow Airport London T5 to Reading National Express / ...
  2. Take the bus from Reading to Carmarthen National Express

$23 - $32

4 alternative options

Train via Newport (S Wales)  •  6 h 6 min

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

$97 - $215

Night bus, train  •  6 h 26 min

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

$60 - $134

Drive  •  3 h 13 min

  1. Drive from Heathrow Terminal 5 Underground Station to Carmarthen 198.9 miles

$40 - $65

Fly, train  •  7 h 59 min

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

$108 - $489

Questions & Answers

The cheapest way to get from Heathrow Terminal 5 Underground Station to Carmarthen is to bus which costs £17 - £25 and takes 6 h 30 min.

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The quickest way to get from Heathrow Terminal 5 Underground Station to Carmarthen is to drive which costs £30 - £50 and takes 3 h 13 min.

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No, there is no direct bus from Heathrow Terminal 5 Underground Station to Carmarthen. However, there are services departing from Heathrow Airport London T5 and arriving at Carmarthen via Reading. The journey, including transfers, takes approximately 6 h 30 min.

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No, there is no direct train from Heathrow Terminal 5 Underground Station to Carmarthen. However, there are services departing from Heathrow Terminal 5 and arriving at Carmarthen via London Paddington and Swansea. The journey, including transfers, takes approximately 5 h 20 min.

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The distance between Heathrow Terminal 5 Underground Station and Carmarthen is 167 miles. The road distance is 198.9 miles.

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The best way to get from Heathrow Terminal 5 Underground Station to Carmarthen without a car is to train which takes 5 h 20 min and costs £110 - £210.

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It takes approximately 5 h 20 min to get from Heathrow Terminal 5 Underground Station to Carmarthen, including transfers.

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Heathrow Terminal 5 Underground Station to Carmarthen bus services, operated by National Express, depart from Heathrow Airport London T5 station.

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Heathrow Terminal 5 Underground Station to Carmarthen train services, operated by Great Western Railway, depart from London Paddington station.

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The best way to get from Heathrow Terminal 5 Underground Station to Carmarthen is to train which takes 5 h 20 min and costs £110 - £210. Alternatively, you can bus, which costs £17 - £25 and takes 6 h 30 min.

Mode details

Map of how to get from Heathrow Terminal 5 Underground Station to Carmarthen.
Launch map view
  • Distance: 166.6 miles
  • Duration: 5 h 20 min

What companies run services between Heathrow Terminal 5 Underground Station, England and Carmarthen, Wales?

You can take a train from Heathrow Terminal 5 Underground Station to Carmarthen via London Paddington and Swansea in around 5 h 20 min. Alternatively, you can take a bus from Heathrow Terminal 5 Underground Station to Carmarthen via Reading in around 6 h 30 min.

Airlines
Aer Lingus
Website
aerlingus.com
Flights from London Heathrow to Cardiff via Dublin
Ave. Duration
3 h 45 min
When
Every day
Estimated price
$85 - $420
KLM
Website
klm.com
Flights from London Heathrow to Cardiff via Amsterdam Schiphol
Ave. Duration
4 h 30 min
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
4 h 50 min
When
Every day
Estimated price
$95 - $420
Flybe
Website
flybe.com
Flights from London Heathrow to Cardiff via Newcastle
Ave. Duration
3 h 35 min
When
Monday, Wednesday, Thursday and Sunday
Estimated price
$95 - $420
Train operators
Great Western Railway
Website
gwr.com
Train from London Paddington to Swansea
Ave. Duration
2 h 56 min
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
46 min
Frequency
Once 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
1 h 17 min
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
2 h 9 min
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
1 h 50 min
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
49 min
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
2 h 6 min
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
1 h 46 min
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
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 Heathrow Airport London T5 to Reading
Ave. Duration
1 h 10 min
Frequency
Hourly
Estimated price
$7 - $11
Website
nationalexpress.com
Bus from Reading to Carmarthen
Ave. Duration
4 h 20 min
Frequency
Once daily
Estimated price
$16 - $22
Website
nationalexpress.com
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
2 h 20 min
Frequency
Once daily
Estimated price
$22 - $40
Book at
uk.megabus.com

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More Questions & Answers

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

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Heathrow Terminal 5 Underground Station to Carmarthen bus services, operated by National Express, arrive at Carmarthen station.

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Heathrow Terminal 5 Underground Station to Carmarthen train services, operated by Arriva Trains Wales, arrive at Carmarthen station.

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Yes, the driving distance between Heathrow Terminal 5 Underground Station to Carmarthen is 199 miles. It takes approximately 3 h 13 min to drive from Heathrow Terminal 5 Underground Station to Carmarthen.

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

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Book your Heathrow Terminal 5 Underground Station to Carmarthen train tickets online with Rome2rio.

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Book your Heathrow Terminal 5 Underground Station to Carmarthen bus tickets online with Distribusion and Distribusion.

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There are 466+ hotels available in Carmarthen. Prices start at $84 USD per night.

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The best way to get from Heathrow Terminal 5 Underground Station to London Heathrow Airport is to train which takes 3 min and costs £2 - £4.

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Trips from Heathrow Terminal 5 Underground Station