Prior to Chiltern Railways operating a rail stop at Bicester Village (pronounced Bis-ter), a luxury shopping outlet center for designer fashion and homeware stores located at the outskirts of Bicester town in Oxfordshire, you will have to take a shuttle bus from dedicated pick-up points in London and head over there. The journey would take 1½ hrs and cost £28 return.
With the introduction of a new rail stop at Bicester Village by Chiltern Railways, you can now catch a train from Marylebone station in London and reach Bicester Village within 45 minutes. Rail tickets bought on the day would cost similar or higer to a shuttle bus but bought in advanced, you may get as cheap as £12 return. Once you return to Marylebone, it a matter of changing platform one level down for the tube to your final destination.
Once your advanced tickets are booked and paid, you will receive a confirmation e-mail from Chiltern Railways. You will then need to obtain a physical ticket at a self-service ticket machine at a train station you have selected (not necessarily at Marylebone). Remember to bring along the credit card you used for the purchase of the tickets. You will be required to slot-in the credit card at the self-service ticket machine for verification. Don’t worry if your reservation had been made months earlier, your tickets will be waiting.
Once you reached Bicester Village Station, cross over to the platform on the other side using the overhead bridge and at the end of the covered walkway to the far end is literally Bicester Village guest service counters. From here, you’ll need to walk about 100m to the outlets itself. The guest service counter has chairs for you to sit and is a welcome relief during the chilly days while waiting for your return train.