Harrow to
BreconStep by step driving directions and route map on how to go from Harrow to Brecon by road.
Distance from Harrow to Brecon: 161.0 mi
Reverse route: Driving directions from Brecon to Harrow
M4, A40
161.0 mi3 hours 26 mins
| Depart | 300 feet | |
| Exit roundabout slight left onto A404 Junction Road | 400 feet | |
| Roundabout straight onto Bessborough Road | 100 feet | |
| Exit roundabout straight onto Bessborough Road | 800 feet | |
| Continue left onto A312 Bessborough Road | 0.3 mi | |
| New name straight onto A312 Lower Road | 0.3 mi | |
| Continue left onto A312 Lower Road | 0 feet | |
| Turn right onto A312 Northolt Road | 0.2 mi | |
| Roundabout left onto A312 Northolt Road | 100 feet | |
| Exit roundabout left onto A312 Northolt Road | 0.9 mi | |
| Turn slight left onto A312 Petts Hill | 600 feet | |
| Roundabout slight left onto A312 Petts Hill | 300 feet | |
| Exit roundabout slight left onto A312 Petts Hill | 0.2 mi | |
| New name straight onto A312 Mandeville Road | 0.7 mi | |
| New name straight onto A312 Church Road | 0.2 mi | |
| Rotary left onto A312 Church Road | 300 feet | |
| Exit rotary straight onto A312 Church Road | 0.7 mi | |
| Rotary straight onto A312 The Parkway | 200 feet | |
| Exit rotary slight left onto A312 The Parkway | 0.7 mi | |
| Roundabout slight left onto A312 The Parkway | 200 feet | |
| Exit roundabout straight onto A312 The Parkway | 2.1 mi | |
| Fork slight left onto A312 The Parkway | 0.4 mi | |
| Rotary straight onto M4 | 0.2 mi | |
| Exit rotary slight left onto M4 | 103.8 mi | |
| Fork slight left onto M48 | 5.3 mi | |
| Off ramp slight left onto M48 | 0.3 mi | |
| Rotary slight left onto A466 Wye Valley Link Road | 800 feet | |
| Exit rotary slight left onto A466 Wye Valley Link Road | 1.1 mi | |
| Rotary left onto A466 Wye Valley Link Road | 300 feet | |
| Exit rotary slight left onto A466 Wye Valley Link Road | 0.9 mi | |
| Roundabout left onto B4293 Itton Road | 100 feet | |
| Exit roundabout left onto B4293 Itton Road | 4.6 mi | |
| Turn slight left onto B4293 | 1.7 mi | |
| Turn left | 1.0 mi | |
| Turn slight right | 1.4 mi | |
| New name straight onto Chepstow Road | 3.9 mi | |
| End of road left onto High Street | 0.2 mi | |
| Roundabout left onto A40 | 200 feet | |
| Exit roundabout slight left onto A40 | 7.7 mi | |
| Roundabout slight left onto A465 Heads of the Valleys Road | 200 feet | |
| Exit roundabout straight onto A465 Heads of the Valleys Road | 2.7 mi | |
| Off ramp slight left onto A465 | 0.2 mi | |
| Rotary slight left onto A4077 Abergavenny Road | 700 feet | |
| Exit rotary slight left onto A4077 Abergavenny Road | 0.8 mi | |
| Continue right onto A4077 | 3.2 mi | |
| Continue right onto A4077 Crickhowell Bridge | 500 feet | |
| Turn slight left onto A4077 New Road | 0.3 mi | |
| End of road left onto A40 Brecon Road | 12.2 mi | |
| Roundabout slight left onto B4601 Watton | 300 feet | |
| Exit roundabout straight onto B4601 Watton | 1.2 mi | |
| Turn right onto B4061 Heol Gouesnou | 0.4 mi | |
| Turn left onto The Struet | 100 feet | |
| Arrive onto The Struet |