The main roads to/from Oxford are:
A34 – a trunk route connecting the North and Midlands to the port of Southampton.
It leaves J9 of the M40 north of Oxford, passes west of Oxford to Newbury and Winchester to the south and joins the M3 12.7 miles (20.4 km) north of Southampton.
Since the completion of the Newbury bypass in 1998, this section of the A34 has been an entirely grade separated dual carriageway.
Historically the A34 led to Bicester, Banbury, Stratford-upon-Avon, Birmingham and Manchester, but since the completion of the M40 it disappears at J9 and re-emerges 50 miles (80 km) north at Solihull.

A40 – leading east dualled to J8 of the M40 motorway, then an alternative route to High Wycombe and London; leading west part-dualled to Witney then bisecting Cheltenham, Gloucester, Monmouth, Abergavenny, passing Brecon, Llandovery, Carmarthen and Haverfordwest to reach Fishguard.

A44 – which begins in Oxford, leading past Evesham to Worcester, Hereford and Aberystwyth.

A420 – which also begins in Oxford and leads to Bristol passing Swindon and Chippenham.
The main roads to/from Oxford are:
A34 – a trunk route connecting the North and Midlands to the port of Southampton. It leaves J9 of the M40 north of Oxford, passes west of Oxford to Newbury and Winchester to the south and joins the M3 12.7 miles (20.4 km) north of Southampton. Since the completion of the Newbury bypass in 1998, this section of the A34 has been an entirely grade separated dual carriageway. Historically the A34 led to Bicester, Banbury, Stratford-upon-Avon, Birmingham and Manchester, but since the completion of the M40 it disappears at J9 and re-emerges 50 miles (80 km) north at Solihull.
A40 – leading east dualled to J8 of the M40 motorway, then an alternative route to High Wycombe and London; leading west part-dualled to Witney then bisecting Cheltenham, Gloucester, Monmouth, Abergavenny, passing Brecon, Llandovery, Carmarthen and Haverfordwest to reach Fishguard.
A44 – which begins in Oxford, leading past Evesham to Worcester, Hereford and Aberystwyth.
A420 – which also begins in Oxford and leads to Bristol passing Swindon and Chippenham.
Oxford