I’ve visited both Ostia Antica and Pompeii, and I’ll say it plainly: Ostia Antica wins. It’s cheaper to reach, far less crowded and just as impressive archaeologically. If you’re based in Rome and wondering whether to make the trek to Pompeii, read this first.
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What is Ostia Antica?
Ostia was ancient Rome’s harbour city, the port through which the capital’s grain supply and imports flowed. Named after ostia, the Latin word for “mouth” (it stood at the mouth of the Tiber), this was once a town of 80,000 people. By the 10th century, it had been largely abandoned, its decline hastened by silting, a loss of trade and the spread of malaria.
What remains is one of the most extensive Roman archaeological sites in the world: streets, temples, bathhouses, apartment blocks, workshops, bars and latrines, all set in a beautiful park of pines and cypresses.
The Highlights of Ostia Antica
Decumanus Maximus
You enter the site directly onto the Decumanus Maximus, Ostia’s main east-west street. This is the spine of the town, and most of the key sites fan out from here.
Baths of Neptune
One of the first buildings you reach on the Decumanus, the Baths of Neptune were built between 117 and 161 AD. Climb the steps for the best view of the spectacular black-and-white floor mosaic showing Neptune riding four horses through the sea. It’s one of the finest mosaics in Italy.
The Theatre
Built in the 1st century BC by Agrippa and later expanded, this theatre could hold up to 4,000 spectators. Much of the original seating and the orchestra’s marble floor are still intact. Head up to the higher levels for a great view of the whole site.
Forum and Capitolium
At the intersection of the Decumanus and the north-south Cardo Maximus sits the Forum, Ostia’s administrative heart. The Capitolium — the temple of Jupiter, Juno and Minerva — still stands at its northern end, its wide staircase and tall brick walls as imposing as anything in Rome.
Baths of the Forum
On the east side of the Forum, these 2nd-century baths are home to one of Ostia Antica’s most memorable sights: a perfectly preserved 20-seat marble public latrine. Take a pew.
Fishmongers’ shops
The central market on the Decumanus has some of the best-preserved shop interiors in the site: marble counters, fish basins and wonderful black-and-white marine mosaics underfoot.
How to Get to Ostia Antica from Rome
Getting here is easy and cheap.
Take Metro Line B to Piramide (direction Laurentina), then walk one minute to Roma Porta San Paolo station. Board the Rome-Lido (Metromare) line towards Cristoforo Colombo and get off at the Ostia Antica stop (about 30 minutes). A standard metro ticket covers the whole journey.
On leaving the station, take the footbridge over the motorway, and the entrance to the site is a short walk ahead.
Total journey time from central Rome: approximately 45 minutes to an hour.
If you’d prefer a guided experience, these tours come highly recommended:
- Ostia Half-Day Tour from Rome by Train – a 4-hour tour of Ostia Antica, including train transfer and a tour guide. | Find out more
- Ostia Antica Private Tour with an Archaeologist – a 3-hour private guided tour with glowing reviews. | Find out more
Opening Hours & Tickets
- Opening hours: Tuesday–Sunday from 8:30 am; closing time varies seasonally between 4:30 pm and 6:30 pm. Check current times here.
- Tickets: €18 (2026). Buy at the entrance or online.
- Free for under-18s; €2 for EU citizens aged 18–25.
Top Tips for Visiting Ostia Antica
- Allow half a day. Two hours is the minimum; half a day is better. I spent a half-day here, and it felt right.
- Go early, especially in summer. It gets hot, and shade is limited. A hat, sunscreen and a good bottle of water are non-negotiable.
- Wear comfortable shoes. The surfaces are uneven throughout.
- Bring an audioguide or a guidebook. Many structures aren’t labelled. I used my trusty Blue Guide: Rome, which has an excellent Ostia Antica section.
- Pack a lunch. There is a restaurant on site, but it’s not cheap.
- No luggage storage at Ostia Antica. Travel light or leave bags at your hotel or at Rome Termini Station.
Ostia Antica vs Pompeii: Which Should You Choose?
Hand on heart: you can’t go far wrong with either site.
Each has intact public buildings, a theatre and bathhouses. Pompeii is more dramatically preserved and has more houses to explore.
But Pompeii is also a 2–3 hour journey from Rome (with a change at Naples), and costs a minimum of around €100 for the day. And, frankly, it can feel like an ancient Roman theme park.
A day trip to Ostia Antica from Rome costs less than €30 all in. The journey is 45 minutes.
When I visited, I shared the site with a handful of other people. That near-solitude — walking the streets of a Roman town, ducking into doorways, reading the mosaics — is something Pompeii can’t give you.
Ostia Antica is also more laissez-faire to explore. At Pompeii, large sections are fenced off, and you follow a set route. At Ostia, you wander, and the wandering is half the pleasure.
That said, if you’re visiting Naples and southern Italy, absolutely go to Pompeii. But if Rome is your base, Ostia Antica is the smarter call, and I think the more enjoyable one.
Enjoyed this guide? You might also like:
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About Bridget
Bridget Coleman has been a passionate traveller for more than 30 years. She has visited 70+ countries, most as a solo traveller.
Articles on this site reflect her first-hand experiences.
To get in touch, email her at hello@theflashpacker.net or follow her on social media.
Excellent article!
Thank you! You can probably tell that I love Ostia Antica :)
I’ve been to both places with high school students many times. I absolutely agree with you that Ostia provides the same excitement and experience without the travel exhaustion and expense. I’m delighted that you write such a fine article on a wonderful historical gem.
Hello! Thank you for these kind words and for taking the time to comment. You can tell that I love Ostia Antica.Lucky you for having the opportunity to visit it many times over.