Your Route From London NW3 to Cardigan SA43
Route Summary
244 mi
4 hours 47 mins
11
42 Miles
65 Minutes
Recommended travel books and guides
Lonely Planet Best Road Trips Great Britain
52 Great British Weekends: A Year of Mini Adventures
Where to Go When Great Britain and Ireland
2026 Philip's Big Easy to Read Britain Road Atlas
Great British Walkies: 100 brilliant dog walks
The Great British Bucket List: Utterly Unmissable Britain
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Route Map
Service Areas Along Route
Heston
Moto Hospitality Ltd, M4 Services, Phoenix Way, Heston, Hounslow, London, TW5 9NB
Reading
Reading Motorway Service Area, Burghfield, Reading, Berkshire, RG30 3UQ
Chieveley services
Moto Hospitality Ltd, Chieveley Motorway Services Area, Oxford Road, Hermitage, Thatcham, Berkshire, RG18 9XX
Membury
Welcome Break, M4 Services, Membury Motorway Services Area, Lambourn, Hungerford, Berkshire, RG17 7TZ
Leigh Delamere
Granada Hospitality Ltd, Leigh Delamere Motorway Services Area, M4, Leigh Delamere, Chippenham, Wiltshire, SN14 6LB
Magor
Magor Motorway Services Area, M4, Magor, Caldicot, Monmouthshire, NP26 3YL
Cardiff Gate
Welcome Break Services, Malthouse Avenue, Cardiff Gate Business Park, Pontprennau, Cardiff, South Glamorgan, CF23 8RA
Cardiff West
Moto Services, Cardiff West Motorway Services Area, M4, Pontyclun, Mid Glamorgan, CF72 8SA
Sarn Park
Sarn Park Motorway Services, Sarn Park Motorway Services Area, M4, Sarn, Bridgend, CF32 9SY
Swansea West
M O T O, Swansea West Services, M4 Junction 47, Penllergaer, Swansea, West Glamorgan, SA4 9GT
Pont Abraham
Road Chef Ltd, Pont Abraham Services, M4 Junction 49, Llanedi, Pontarddulais, Swansea, SA4 0FU
Recommended motoring accessories for your car
Lewis-Plast Premium 92 Piece First Aid Kit
AA Euro Travel Kit AA6318
Car Breakdown Emergency Kit
iZEEKER 2.5K Dash Cam, 1440P QHD Car Camera
Car Seat Organiser
Zacro Car Bin with 5 Garbage Bags
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Step-by-Step Directions
Head south-west on Gordon House Rd/
0.25
Continue onto Fleet Rd
0.25
Continue straight onto S End Rd
0.25
Continue onto E Heath Rd
0.5
Turn left onto W Heath Rd
0.5
Slight left onto Platt's Ln
0.25
At the roundabout, continue straight onto Hermitage Ln
0.25
Continue onto Cricklewood Ln/
0.25
Turn right onto Hendon Way/
1.0
Take the A406 slip road to Watford/
0.0
Take the slip road onto N Circular Rd./
4.0
Keep right to stay on N Circular Rd./
1.0
At Hanger Lane Gyratory, take the 2nd exit onto N Circular Rd./
2.75
At the roundabout, take the 5th exit onto Great West Rd
0.75
Merge onto M4 via the slip road to Heathrow Airport
16.5
Heston Moto Hospitality Ltd, M4 Services, Phoenix Way, Heston, Hounslow, London, TW5 9NB
Keep right to stay on M4
172.0
Reading Reading Motorway Service Area, Burghfield, Reading, Berkshire, RG30 3UQ
Chieveley services Moto Hospitality Ltd, Chieveley Motorway Services Area, Oxford Road, Hermitage, Thatcham, Berkshire, RG18 9XX
Membury Welcome Break, M4 Services, Membury Motorway Services Area, Lambourn, Hungerford, Berkshire, RG17 7TZ
Leigh Delamere Granada Hospitality Ltd, Leigh Delamere Motorway Services Area, M4, Leigh Delamere, Chippenham, Wiltshire, SN14 6LB
Magor Magor Motorway Services Area, M4, Magor, Caldicot, Monmouthshire, NP26 3YL
Cardiff Gate Welcome Break Services, Malthouse Avenue, Cardiff Gate Business Park, Pontprennau, Cardiff, South Glamorgan, CF23 8RA
Cardiff West Moto Services, Cardiff West Motorway Services Area, M4, Pontyclun, Mid Glamorgan, CF72 8SA
Sarn Park Sarn Park Motorway Services, Sarn Park Motorway Services Area, M4, Sarn, Bridgend, CF32 9SY
Swansea West M O T O, Swansea West Services, M4 Junction 47, Penllergaer, Swansea, West Glamorgan, SA4 9GT
Pont Abraham Road Chef Ltd, Pont Abraham Services, M4 Junction 49, Llanedi, Pontarddulais, Swansea, SA4 0FU
At the roundabout, take the 2nd exit onto A48
3.75
At Cross Hands Roundabout, take the 3rd exit and stay on A48
11.0
At Pensarn Roundabout, take the 2nd exit onto A40
0.5
At the roundabout, take the 1st exit and stay on A40
3.25
Turn right onto B4298
0.25
Last minute travel essentials
NTONPOWER Travel Extension Lead, travel Essentials
BAGAIL Microfibre Travel Towel, Perfect Travel Towel
Pill Organizer,Pill Dispenser With 7 Large Compartments
Travel Pillow Neck Pillow Memory Foam Travel Pillow
Hiluckey Power Bank Portable Charger - 22.5W Fast Charging
Mini Travel Pillow, Soft Down Alternative Pillows
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Turn right to stay on B4298
4.25
Slight right
0.75
Turn right
0.0
Turn left
1.0
Turn left
0.5
Turn right
3.0
Turn right
5.25
Continue straight
2.5
Turn right
0.25
Turn left
1.0
Turn left onto B4332
0.0
Turn right
1.25
Turn right onto A478
1.75
Turn left towards A478
0.0
Turn right towards A478
0.0
Turn left onto A478
2.0
At the roundabout, take the 2nd exit onto B4546
0.25
Continue onto Castle St
0.0
Castle St turns left and becomes Bridge St
0.0
Continue onto High St
0.25
Continue onto Pendre
0.0
Arrive at your destination
Don't forget in-car food and drink essentials
HASAGEI Travel Mug, Insulated Coffee Cup with Leakproof Lid
Travel Mugs,KETIEE 380ml Insulated Coffee Cup with Leakproof Lid
Thermos - Stainless King Red Travel Flask (1.2L)
Sistema KLIP IT PLUS Leakproof Food Storage Containers
SUNWILL Metal Water Bottle Stainless Steel 500ml
Volhoply 14oz Insulated Stainless Steel Coffee Mug
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