The M4 metro line to Linate airport opened in 2022-2023 and transformed one of Europe's most notoriously badly-connected city airports into one of its most convenient. 12 minutes. €2.20. This guide explains everything.
Plan my Italy trip →Linate (LIN) is Milan's city airport: 8km east of the Duomo, handling mainly domestic Italian and short-haul European flights. Before 2022, it was one of Europe's most awkwardly connected city airports — the only option was a slow bus or a €25 taxi. The M4 metro line, opened in stages from 2022 and completed in 2023, changed this completely: Linate is now 12 minutes from the city center by metro for €2.20. This is the cheapest, most direct airport-to-center connection of any of Milan's three airports.
The M4 blue metro line runs from Linate Airport station directly to Milan city center. The Linate Airport station (clearly marked M4 with a blue line symbol) is integrated into Terminal 2 — follow blue line signs from the arrivals hall. Journey time: approximately 12 minutes to San Babila (interchange with M1 red line, 5-minute walk from the Duomo), 15 minutes to Duomo station. Ticket: standard ATM BIT ticket (€2.20), valid for 90 minutes on all Milan metro, tram, and bus services. Metro operating hours: approximately 5:38am to 12:30am. No booking required — buy at machines in the station before boarding.
Linate is primarily used for Italian domestic flights and short-haul European routes. Main domestic connections: Rome (Fiumicino), Naples, Palermo, Catania, Bari, Turin. European connections: London Heathrow (British Airways), Paris CDG (Air France), Frankfurt, Amsterdam, Brussels, Zurich, Madrid, Barcelona, and other major European hubs. Linate does not handle long-haul or intercontinental flights — those go through Malpensa (50km northwest) or Bergamo (50km northeast). The mix of business travelers (Linate's historic clientele — it was the preferred airport of Italian business travelers for decades due to proximity) and leisure travelers on budget European routes. If you're arriving from North America, Asia, or long-haul, you're almost certainly landing at Malpensa.
Linate airport opened in 1937, during the Mussolini era, as the city's primary aviation facility. For most of the 20th century it served as Milan's main airport. When traffic volumes exceeded capacity and the new Malpensa Terminal 2 opened in 1998, Linate was supposed to be reduced to domestic and European services. The transition was politically contentious — Italian airlines and business associations fought to maintain Linate's European routes. The result: Linate retained significant traffic but remained perversely connected to the city despite being the closest airport to the center. The only public transport was the Autobus 73 (45 minutes in traffic) or the expensive shuttle to Centrale. Taxis charged €25-35. For a city with Linate's proximity (only 8km from the Duomo), this was embarrassing. The M4 project was approved in 2008, broke ground in 2013, and opened sections progressively through 2020-2023, transforming Linate from one of Europe's most inconveniently connected airports to one of the most straightforward.
The taxi has a fixed rate of €20-25 to the city center — demand this fixed tariff before entering the cab, as it's legally required to be offered. The M4 costs €2.20. The time difference: metro takes 12-15 minutes, taxi takes 15-25 minutes depending on traffic. For a solo traveler: metro is obviously better — same time, 90% less cost. For a group of 3-4 with large luggage: the €20-25 taxi fare splits to €5-7 per person, and comfort with luggage is easier. For very late-night arrivals (after 12:30am when the metro stops): the taxi is the only public option. For the full ATM 24-hour pass (€7): includes the metro to Linate plus all onward transport within Milan for the rest of the day.
Linate is a compact, single-terminal airport (approximately 15 gates) by major airport standards. Facilities: one Departures level, one Arrivals level, limited retail (a few shops and cafes), car rental desks (Hertz, Avis, Europcar) in Arrivals. No airport hotel directly connected — the nearest hotels are in the Forlanini/Lambrate residential area east of the city (15 min by M4 from San Babila). Security at Linate is generally fast compared to Malpensa — shorter lines, more manageable crowds. Check-in and security usually take 30-45 minutes total for domestic/European flights, vs 60-90 minutes at Malpensa. Linate's proximity to the center means you can realistically leave your hotel at T-90 minutes for a domestic flight without stress.
The old airport bus route (Autobus 73 from Linate to San Babila) still exists as a regular ATM city bus, covered by the standard ATM BIT ticket (€2.20). It takes approximately 35-45 minutes depending on traffic, vs 12 minutes on the M4. There is almost no situation where you would choose Bus 73 over the M4 now — the metro is faster, runs more frequently, and is less affected by traffic. The only exception: if you need to stop at specific locations along the bus route (the Forlanini area, the Via Corsica area) that aren't served by the M4. For airport transfer purposes: always use the M4.
There's no direct shuttle between Linate and Malpensa. The connection: M4 from Linate to San Babila or Dateo, change to M1 or M2 to Centrale, then Malpensa Express train to Malpensa Terminal 1 (52 min, €13). Total transfer time: approximately 80-90 minutes. Alternatively: taxi or private transfer between the two airports (50km by road, 45-60 min in normal traffic, €80-100). For passengers with long layovers between Linate and Malpensa connections: the train via Centrale is the practical option. For tight connections under 3 hours: strongly consider whether you've allowed sufficient buffer, as Italian domestic flight delays are not rare.
The M4 (blue line) is Milan's newest metro, opened in sections from 2022-2023. It runs east-west: from Linate Airport in the east through San Babila (interchange with M1 red line), then via Sforza Policlinico (Policlinico hospital), Sant'Ambrogio (near the Basilica di Sant'Ambrogio), and San Cristoforo westward toward Missaglia at the western edge of the city. Key stops for tourists: San Babila (Duomo area, 5-min walk, M1 connection), Sant'Ambrogio (access to Basilica Sant'Ambrogio and the Leonardo da Vinci National Museum of Science and Technology). The M4 uses driverless technology — fully automated, no driver cabin, glass platform barriers. Frequency: every 4-6 minutes during peak hours, every 8-10 minutes off-peak. Night service ends approximately 12:30am; from 5:30am it resumes.
For early morning Linate departures or late-evening arrivals, staying in the eastern Milan neighborhoods reduces transfer time. The Forlanini area (between city center and Linate, 3-4 stops from the airport on M4) has business hotels at lower price points. For visitors wanting both city access and easy Linate connection: San Babila (central) is 12 minutes from Linate on M4 and centrally located for everything else. Corso Buenos Aires (Milan's main shopping street) area is 15 minutes from Linate and more affordable than the design-district hotels of Brera or the fashion district around Via Montenapoleone. The M4 makes the airport essentially adjacent to the city — staying specifically near Linate is only necessary for very early (5am) departures when metro service hasn't started.
The Linate disaster of October 8, 2001 is the deadliest aviation accident in Italian history: a Scandinavian Airlines MD-87 collided with a private Cessna Citation during takeoff in dense fog, killing all 114 people on both aircraft and four airport ground workers. The collision occurred because the Cessna entered the active runway via a taxiway incorrectly cleared by ground control, in visibility conditions below operational minimums. The disaster led to significant changes in Italian aviation safety protocols, airport ground movement procedures, and runway incursion prevention systems. A memorial stone near the airport marks the site. The disaster had no long-term effect on Linate's safety record — subsequent improvements made it compliant with the highest European safety standards.
Ogni attrazione italiana che vale la pena visitare ha un sistema di prenotazione online che elimina la coda. I Musei Vaticani: tickets.museivaticani.va (2-4 settimane in anticipo in alta stagione). Il Colosseo: coopculture.it (1-2 settimane). L Ultima Cena di Leonardo: cenacolovinciano.vivaticket.it (2-3 mesi — questa è seria). La Galleria Borghese: galleriaborghese.it (obbligatoria, inderogabile). La Torre di Pisa: opapisa.it (1-2 settimane). Gli Uffizi: uffizi.it (1-3 settimane). Il principio è invariabile: un visitatore con prenotazione e uno senza arrivano allo stesso sito e hanno esperienze completamente diverse. La prenotazione online richiede 3 minuti. Non farlo è sprecare ore di vacanza in coda.
Un set minimo di frasi risolve la maggior parte delle situazioni pratiche di viaggio: "Ho una prenotazione" (I have a reservation). "A che ora apre/chiude?" (What time does it open/close?). "Quanto costa?" (How much does it cost?). "Dov è la fermata più vicina?" (Where is the nearest stop?). "Un biglietto per [destinazione], per favore" (One ticket to [X], please). "Posso vedere il menù con i prezzi?" (Can I see the menu with prices?). "C è lo sciopero?" (Is there a strike?). Il tentativo di usare l italiano — anche con errori — trasforma quasi sempre il rapporto con il personale: lo staff turistico in Italia in genere passa all inglese dopo il primo tentativo in italiano, ma l effort viene percepito e apprezzato.
ATM (Azienda Trasporti Milanesi) is Milan's city transport authority operating the metro, trams, and city buses — including the M4 line to Linate. The ATM BIT ticket (€2.20) covers one metro journey and 90 minutes of unlimited transport on all ATM vehicles. ATM day passes (24h: €7, 48h: €12, 72h: €17) cover all ATM services including the M4. These are not valid on: Malpensa Express (separate company, separate ticket at €13), the airport bus to Bergamo (Autostradale/Terravision, separate ticket), or Trenitalia/Italo national trains. When you exit the M4 at Linate Airport station, the fare-paid zone ends — you're now airside of the transport system. Buy return M4 tickets before leaving Milan if you want to avoid queuing at Linate's ticket machines on return.
The principle applies across all Italian destinations: book the timed-entry attraction first, then build your itinerary around it. For Rome: the Vatican Museums and Colosseum should be booked 2-4 weeks ahead. For Florence: the Uffizi at uffizi.it and the Accademia (for David) at b-ticket.com. For Milan: Leonardo's Last Supper at cenacolovinciano.vivaticket.it (2-3 months ahead — this is the most over-subscribed attraction in Italy). For Venice: the Palazzo Ducale and Gallerie dell'Accademia in peak season. For Naples and the Amalfi Coast: book the Pompeii visit (ticketone.it) and the Blue Grotto at Capri (no advance booking possible — arrive at the Marina Grande early and join the daily queue, or hire a private boat). The unbooked version of every Italian attraction is possible — it just costs you queue time that could be spent on something better.
The best Italy trips treat logistics as infrastructure to be solved quickly and forgotten, not as the trip itself. Book transport and entry tickets in advance (30 minutes of planning before departure eliminates 90% of on-the-ground logistics problems). Use trains between cities rather than driving (cheaper, more reliable, requires no parking, drops you in the city center). Stay in the city or town itself rather than in a peripheral hotel for convenience (an extra €30/night for a central location is always worth it). Eat where no English menu is displayed outside — this single rule eliminates most tourist-trap restaurants in Italy. Walk: Italy's historic centers are all pedestrian-scale and the best discoveries happen on foot between the planned sights. And finally: build one unscheduled afternoon per destination — some of the best Italy moments are not on any itinerary.
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