Rome has 180+ bus routes. Most tourists need six. This guide cuts to the ones that solve real access problems — Trastevere without a taxi, the Vatican from Termini, Testaccio from the center.
Plan my Italy trip →Rome has 180+ bus routes. Most tourists need approximately six. The others serve residential zones, school runs, and outer neighborhoods that are entirely irrelevant to any normal visit to the historic center, the Vatican, or the main archaeological sites. This guide is about the six to eight routes that actually solve problems: getting to Trastevere without the metro or a taxi, reaching the Vatican from Termini, getting to Testaccio, and navigating from Piazza del Popolo to the center. Everything else you can ignore.
Bus H (Termini → Piazza Venezia → Largo Argentina → Viale di Trastevere): the single most useful bus for tourists. Runs frequently, connects the main train station to the historic center and then straight through Trastevere. Essential. Bus 40/64 (Termini → Piazza Venezia → along the river → Vatican/Piazza Risorgimento): the direct Vatican bus from Termini. Bus 23 (Piazza del Popolo along the Tiber to Trastevere and then to Ostiense): the riverside bus connecting the north to Trastevere to the south. Bus 3 (same route as Tram 3, serves as the bus version when trams are disrupted): connects the Colosseum area to Testaccio and Ostiense. Bus 116 (electric minibus through the historic center — Largo Argentina to Via Veneto): the only motorized public transport that navigates the narrow streets of the centro storico. Bus 590 (Termini to Fiumicino — not an airport express, serves intermediate stops, slow): rarely useful. Bus 628 (connects Pigneto and the eastern neighborhoods to the center): useful if staying in Pigneto.
Buy a BIT ticket before boarding (€1.50, valid 100 minutes from first validation, covers unlimited buses and trams plus one metro ride). Tickets are sold at tabacchi (look for the orange T sign), newsstands, metro station machines, and via the MooneyGo or TabNet apps. Board through the front or middle doors on single-articulated buses, through all doors on double-articulated buses. Validate your ticket immediately in the yellow or orange machine — even if there's no inspector present. Inspectors board randomly, and the fine (€54.90) is collected on the spot. Paper tickets must be validated; digital tickets on apps show as valid after purchase. Sit-down validation is also required — if you board and there's a pile of people standing near the door, validate before moving away from the machine.
Rome's bus-heavy transport system is a direct consequence of decisions made in the 1930s-1970s to systematically dismantle the city's extensive tram network. At its peak in the 1930s, Rome's trams covered over 300km of routes throughout the city. Mussolini began removing them from the most tourist-visible central routes to create clear wide avenues for military parades and automobile traffic — decisions that were simultaneously aesthetic choices, pro-automobile industry policies (FIAT), and political statements about modernità. Post-war governments continued the policy. By the 1970s, six tram lines survived (now reduced to six but slightly different routes). The vacuum left by tram removal was filled by diesel buses — which are now so numerous and complex that they've become effectively navigable only with GPS routing apps. The ATAC system (Azienda Tramvie e Autobus del Comune di Roma — now Azienda per la Mobilità) has been chronically underfunded and has had regular management scandals, which is why Rome's bus reliability is lower than that of comparable European capitals.
Rome bus stops (fermate) show a yellow pole with the bus number(s) that stop there plus the destination of the line. The small paper or laminated schedule posted at the stop shows departure times — these are optimistic in busy traffic conditions. The key: check the direction of the route. Most stops have the same bus serving opposite directions on the same street — confirm you're on the correct side of the road for your destination direction. The ATAC real-time app (atac.roma.it) shows actual bus positions on a map, which is more reliable than the paper schedule. Google Maps integrates ATAC live data reasonably accurately for Rome buses. Moovit is also reliable and shows real-time positions. When a bus shows "CAPOLINEA" on its destination board, it's going to its terminus (end of line) — it's still running, but check whether your stop is before or after the capolinea.
Bus H from Termini is the most direct (Termini → Piazza Venezia → Largo Argentina → Viale di Trastevere, approximately 25 minutes). Tram 8 from Largo Argentina is faster and more reliable for the Largo Argentina–Trastevere specific journey (8-10 minutes, but requires getting to Largo Argentina first). From the Vatican area: Bus 23 southward along the Tiber reaches the Trastevere waterfront area. From Piazza del Popolo: Bus 117 or Bus 23 (depending on current routing) reaches the Trastevere direction. The exact routing of Rome buses changes periodically due to construction, events, and ATAC reorganizations — always confirm the current route on the ATAC app or Google Maps before relying on a specific bus number from memory.
Yes. Bus 40 and Bus 64 both run from Termini along Via Nazionale and Via del Plebiscito to Piazza Venezia, then westward along Corso Vittorio Emanuele II and across the Tiber to the Vatican area (final stops near Piazza Risorgimento, a 5-minute walk to the Vatican Museums entrance). Journey time: approximately 30-40 minutes in normal traffic. Metro Line A from Termini to Ottaviano is significantly faster (8 minutes, two stops) and more reliable — use the bus only if you want to see the route or the metro isn't running. Both Bus 40 and 64 are among Rome's most pickpocket-affected routes (lots of tourists, slow moving traffic creating opportunities) — watch your belongings.
Bus 116 is a small electric minibus — the only motorized public transport that actually navigates the narrow streets of the Roman centro storico. It runs from Largo Argentina westward through the Jewish Ghetto, past the Pantheon, through Piazza di Spagna area, and to Via Veneto. Because of its small size, it can move through streets where standard ATAC buses physically cannot go. It's useful for covering distances in the historic center when walking feels too far and a taxi seems excessive. The frequency is less predictable than the major routes, and the minibus fills quickly during tourist peak hours. Use it for the experience of moving through the most pedestrianized streets of Rome by vehicle — interesting in itself.
Less reliable than the trams (which run on fixed rails and can't be diverted), significantly less reliable than the metro, and highly variable depending on traffic. A Bus H at 9am on a Tuesday will arrive within 5 minutes of schedule. The same bus at 5:30pm on a Friday may be 25 minutes late or completely absent (several buses on the same route can bunch and arrive simultaneously after a gap). ATAC has a structural reliability problem rooted in chronic underfunding and an aging vehicle fleet — this is well documented and the subject of periodic Roman political controversy. When a bus is very late: use the ATAC app to check for the next bus on the same route or a parallel alternative, consider Tram 8 if on the Trastevere corridor, or walk if the distance is under 20 minutes. Rome's historic center is fundamentally pedestrian — most tourist sites are within 2-3 km of each other, making the bus optional rather than essential for most journeys.
Yes — ATAC operates a night bus network (marked with an N prefix or written on the bus display as night service) that runs from approximately 12:30am to 5:30am when regular routes have stopped. Night buses cover fewer routes and run every 30-45 minutes. The night bus network includes routes along the major arterials — Termini, Piazza Venezia, Largo Argentina, Trastevere, Testaccio. For late-night returns from restaurants in Trastevere or Testaccio: the night bus is viable but requires planning around the schedule. Taxis are more reliable late at night in Rome — metered, night surcharge applies after 10pm (approximately €1.50 addition to the meter), and widely available via the ItTaxi app or by hailing on the street in central areas.
Across all Italian destinations, three mistakes recur most consistently. First: booking nothing in advance and assuming you can improvise the same experience on the day — you cannot, particularly for timed-entry sites like the Vatican Museums, the Colosseum, or the Borghese Gallery. Second: concentrating exclusively on the most famous sites and missing what's around them — the Pinacoteca next to the Sistine Chapel route, Herculaneum instead of Pompeii, Varenna instead of Bellagio, Atrani instead of Amalfi town. Third: moving too fast — trying to see five cities in seven days produces Instagram evidence of presence without actual experience. Italy rewards slowing down: one extra hour in the Raphael Rooms, one additional ferry hop on Lake Como, one more glass of local wine in a bacaro while the canal reflects the evening light. The best Italy travel stories are always about what happened when there was time for something unplanned.
Both use the same BIT ticket (€1.50, 100 minutes). Trams run on fixed rails and cannot be re-routed, making them more reliable than buses when traffic is heavy. Buses can be diverted by events, construction, or breakdowns, making them less predictable. For tourist journeys where a tram exists (Tram 8 to Trastevere, Tram 3 to Testaccio/Ostiense), always prefer the tram. For journeys where no tram runs (Vatican corridor, Termini to Colosseum), buses are the correct mode. The Rome metro covers the same territory as the 40/64 bus corridor far more efficiently — if you're going from Termini area to the Vatican, the Metro Line A (Lepanto or Ottaviano stop) is faster and more reliable than any bus.
During large events — the Rome Marathon (typically April), state visits, major demonstrations on Via dei Fori Imperiali, and the summer's outdoor concerts at the Circus Maximus — ATAC implements diversions that fundamentally change bus routes. Lines 40, 64, and 70 are the most commonly affected when the Via Nazionali-Corso Vittorio Emanuele corridor is blocked. ATAC publishes diversions at atac.roma.it approximately 24-48 hours before major events. Practically: on event days, allow extra time for any bus journey through the center, have a tram or metro alternative planned, and consider whether walking might be faster than waiting for a diverted bus. The Rome Metro is generally unaffected by surface events and remains the most reliable urban transport during large gatherings.
Calculate this way: if you're making 5+ transport journeys in a day, the 24-hour BIG (€7) is better value than buying BIT tickets individually (€1.50 each). A typical tourist day in Rome — hotel to Colosseum, Colosseum to Trastevere for lunch, Trastevere to Vatican, Vatican back to hotel — involves 4-6 transport journeys, making the day pass competitive. For a day focused on walking the historic center (where most major sites are within walking distance of each other), you might only need 2-3 transport journeys total, making individual BIT tickets better value. Rome is more walkable than transport maps suggest — factor walking time into your planning before defaulting to buses.
Bus 116 is one of Rome's small electric minibuses running a circular route through the historic center streets too narrow for standard buses. It serves Via Veneto (the famous street from Fellini's La Dolce Vita), the area around the Villa Borghese, Piazza Barberini, and connects toward Campo de' Fiori. For visitors with limited mobility, seniors, or anyone carrying heavy bags between historic center points that would otherwise require walking, the 116 is the correct solution. It runs every 10-15 minutes during the day and the same BIT ticket applies. The 116's small size means it gets into corners of the center that no other bus reaches.
It happens. ATAC's official response time for a non-arrived scheduled bus is that you wait for the next one. The practical approach: check Moovit or Google Maps real-time for the next predicted arrival. If the next bus shows 20+ minutes away, consider walking (Rome's center is compact) or taking a taxi (metered from the nearest taxi stand — all official Rome taxis are white, metered, with the city emblem). As a rule: never miss a fixed appointment (restaurant booking, museum timed entry, train connection) on a bus schedule. Leave a buffer or use the metro where it's available. For tourist-relevant journeys, the metro is always more reliable than any bus.
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