|Distance:||3.7 miles (6 km)|
|Meets:||A4144, B4495, A40, A4260|
|Route outline (key)|
The road starts at a fork at the northern end of St Giles, a wide road on the northern edge of the city centre. The A4144 has to TOTSO here, although that road has always had numerical priority at this junction.
The A4165 heads north along Banbury Road. Initially it runs amongst university buildings but we merge seamlessly into the leafy suburbs. Presently the B4495 is crossed at traffic lights. We continue through the attractive-sounding suburbs of Summertown and Sunnymead (on the ground they could be anywhere) and eventually we reach a roundabout on the A40 ring road. We continue north past a cemetery and enter open country.
The road runs between a golf course and open fields before traffic lights provide access to the Water Eaton park & ride site. The road then goes over the Oxford to Bicester railway line and the A34 before reaching a roundabout on the original line of the A43, which is now the A4260 to the left and unclassified to the right. The former continues ahead and so the A4165 ends here.