Started this on another post but realized that it was a bit off the accomodations topic.
Would like to see Pompeii while staying in Rome. Is it possible as a day trip? If so, how to do it?

Thanks for any help.

We took a day trip of Pompeii from Rome and I think the tour was with Greyline. It took the whole day, we just rode through Naples, did a walking tour of Pompeii, had lunch, and spent an hour or two in Sorrento at a wooden box gift shop. Naturally, all these bus tours drop you off for shopping when we would have preferred to spend the time in Pompeii. But anyway, it is "doable" and I am glad we went.

It is Gray Line tours, sorry. Anyway, google Rome+ Gray Line Tours and there will ba whole list of trips departing from Rome. We also did a Gray Line Tour of Rome at night.

You can do it without a tour company. It is a long day so get up as early as you can bear.

Take the national train to Naples. Take a local train (CircumVesuvian ?) to Pompeii. The local train station is about 300 feet and across the road from the Pompeii ticket office.

You can see more of Pompeii - and spend less time shopping for stuff you do;t really want - just be either renting a car or taking a train instead. You can get right to the entrance of Pompeii either way. But, it would be a very long day - and really only makes sense at a time of year when it stays light late and the site is open longer hours.

Take the earliest possible Trenitalia train from Rome to Napoli Centrale, then go underground to the Circumvesuviana commuter rail to Pompei. Follow the signs to the underground station.

It's cheap if you go "on your own":

Trenitalia: 20.50 to 44 Euros each way, depending on category of train selected. Travel time between 70 minutes (AV super-fast train) and 130 minutes (IC train) in each direction. Seats on these train come reserved with the ticket purchase.

Circumvesuviana commuter rail: 2.40 Euros each way (40 minute ride). Service every 30 minutes. This is a commuter train. No reserved seats.

You must buy SEPARATE tickets for the Trenitalia train and the Circumvesuviana commuter rail.

The entrance to Pompei Archeological Park is 250 yards from the exit to the Pompei Scavi Circumvesuviana station.

www.ferroviedellostato.it
www.vesuviana.it

If you were to go on a Friday, Saturday or Sunday, you could take the Marozzi bus which departs Rome Tiburtina station at 7 am and arrives Pompeii at 10 am. It drops at the entrance and the cost is 17€. The return bus is at 5:45 pm and cost 16.50€ or round trip ticket is 29€. You would have to get to Tiburtina (it's on the metro line) early enough to locate the bus (Tiburtina is a major bus hub for Rome) which could be a bit of a trek outside the station (across or down the road). I would buy tickets a day or two before. If the return time didn't suit you can take the train back (Pompeii Scavi train station is across the street from the entrance to Pompeii). Directions for buying bus tickets in English on their website start on page 15.
http://www.marozzivt.it/download/manuale/manuale.pdf

Thanks everyone!