You may also be interested in the maps page for specific information about travel and arrival
The most convenient arrival airport is London Heathrow (LHR), from which there is a frequent express coach service to Oxford (see below). London Gatwick (LGW) is a little further, but again there is direct coach service to and from Oxford. Birmingham International, Stansted and Luton have less frequent coach and/or rail connections with Oxford.
There are frequent direct trains from London Paddington and regular links northwards via Birmingham, southwards via Reading, and westwards via Didcot. Consult the travel planner (and buy tickets, even for international travellers) at thetrainline.com The station is a 15 minute walk from St Anne's, but there is of course a taxi rank at the station.
There are very frequent services from London Victoria Station and Heathrow and Gatwick Airports operated by Oxford Bus. A rather less frequent service connects with Birmingham International airports. There are connections with many other parts of the country, including a direct service to Cambridge. The central bus and coach depot (Gloucester Green) is a 10 minute walk south of the College.
The city centre is avoided by approaching College from the north on the A4165 Banbury Road or A4144 Woodstock Road, both of which are accessible from the ring road. If using the M40 from the north leave at Junction 9, but from the south-east leave at Junction 8. However, on-road parking near College is near impossible, and unauthorized parking in College is prohibited.
All questions about conference travel should be directed to the official conference email address: assc10@gmail.com.