There is no direct trian from Heathrow to Oxford, so rather than take a coach to Reading then change onto a train, why not just take the "airline" coach all the way to Oxford - it runs every 30 mins and the journey only takes 90 mins - see www.oxfordbus.co.uk/main.php?page_id=24 .
I looked into taking the bus into Oxford vs the train & suprisingly time & money wise it suited me better to take the train. This may well be because of the fact that I have a railcard which gives me a third discount off the price but nontheless do check before you travel.
The journey takes about an hour & the ticket out cost me GBP9 & GBP4 return I selected single ticket options as a cheap day return in total cost more then the 2 singles. Purchase your tickets in advance & a seat reservation is included in the price (I believe this can cost extra in some countries like the Netherlands)
You can book your tickets & pick them up on the day prior to departure. Booking through the main rail website instead of thetrainline means you don't need to pay a postage fee for 1st class postage.
The journey is fairly smooth with lovely countryside views, there is a buffet car in case you get peckish & the toilets are fairly clean.
Trains to Oxford run every 30 minutes from Birmingham New Street station. Get on the Bournemouth or Reading bound trains and disembark at Oxford. Alternatively a regular service runs between London Paddington and Oxford.
Tourist sightseeing buses operate from outside Oxford railway station or the centre of Oxford is just a short 10 minute walk away.
Desde Londres hay permanentes servicios de trenes desde Paddington, desde muy temprano hasta bién tarde en la noche así que no hay excusa para dejar de ir a Oxford.
El precio es 15 euros aprox ida y vuelta para un día.
Si vas en fin de semana puede ser mas barato.
Oxford has very limited and very expensive parking in the city centre, so the best way to get in is by public transport, either by bus from one of the Park & Rides, or by train.
The railway station is a five minute walk from the city centre, and is well served by Thames Trains services from Paddington and Reading, as well as Virgin Trains services from Birmingham and the North.
I went to Oxford by train from London Paddington. If you are planning a day trip you can get a "Cheap Day Return" ticket for £16. The direct train takes 1 hour.
On the picture you can see Oxford station on my way back. All trains were running late because of some bridge problem north of Oxford. It was 7 pm when I took this pic. I wonder whether the first train announced on the screen has arrived by now. For English standards it was "On Time" though....
With a Rail Station, regular 24 hour a day buses from London, Buses to all over the country daily. An hour from London, an hour from Heathrow, Oxford is so easy to get to. Within Oxford most bus services are regular, and some run all night too, taxis are plentiful, transportation is no problem - unless you have a car. Its an old City, not made for the volume of modern traffic, so access to the city centre & parking in the centre often becomes a chore for the visitor.
Oxford is easily reached from London Paddington, Slough and Reading. Services normally run twice an hour during the day; the journey from London takes under an hour. Once you are there,
stay on foot and enjoy the wonderful architecture!
Fairly fast and frequent train service from Paddington Station, London. Oxford is also served by long distance train routes from Birmingham to Brighton and Southampton. There is a fast bus service from Victoria Coach Station, London.
Everything you need is in walking distance.
Most visitors arrive to Oxford from London and it takes an hour by train from Paddington. Oxford is linked to many other stations too, though you may have to change trains at Reading to get here.