Sky Line Frankfurt Airport: The SkyTrain Between Terminals

If you need to switch between terminals at Frankfurt Airport, the Sky Line is your most important means of transport. The driverless elevated railway — often called the SkyTrain — connects the terminals quickly, free of charge and at a dense frequency. Especially since the opening of the new Terminal 3, it has become indispensable for many travellers. Let me explain how the Sky Line works, how long the journey takes and what to watch out for when transferring.

What is the Sky Line?

The Sky Line is a fully automatic, driverless elevated railway (a so-called people mover) that connects Frankfurt Airport’s terminals with one another. It runs on a raised track above the airport grounds and takes you from one terminal to another in just a few minutes. Use is free of charge — so you don’t need a ticket.

With the opening of the new Terminal 3 in April 2026, the Sky Line was extended with a new line that also connects Terminal 3. This makes the train the backbone of the connection between the departure areas today.

Journey time and frequency

The Sky Line is impressively fast and runs frequently:

• Journey time: from Terminal 1 to Terminal 3 the trip takes only around eight to ten minutes.
• Top speed: the train reaches up to 80 km/h.
• Frequency: the Sky Line usually runs about every two minutes, at peak times even at 90-second intervals. At quieter times you wait at most a few minutes.
• Capacity: the system can carry several thousand passengers per hour in each direction.

Thanks to this dense frequency, even tight transfer connections are feasible — nonetheless you should always allow a little buffer when switching between terminals.

Which terminals does the Sky Line connect?

The Sky Line directly connects Terminal 1 and the new Terminal 3. Important to know: Terminal 2 has been closed since June 2026 for a years-long major refurbishment, and its airlines have moved to Terminal 3. So if you used to “always fly from Terminal 2”, you now very likely arrive at or depart from Terminal 3 — and the Sky Line takes you there.

How to use the Sky Line when transferring

1. Check the terminal on your ticket: first look at which terminal your flight departs from (1 or 3).
2. Follow the signs: the routes to the Sky Line are well signposted in the airport — just follow the signs.
3. Board and ride: the train comes at a dense frequency; board and travel to your destination terminal.
4. Allow time: including the walks, security and any repeat checks, factor in enough transfer time.

Arriving by rail and the Sky Line

An important note for anyone arriving by train: there is no dedicated station right at Terminal 3. If you arrive by S-Bahn (regional station) or ICE (long-distance station), get off at Terminal 1 and then take the Sky Line onward to Terminal 3. Allow a few extra minutes for this, especially if you’re pressed for time.

Practical tips

• Allow buffer: even though the train is fast, budget generously when transferring between terminals so you stay relaxed.
• Clarify your luggage: on transfer connections, know whether your bag is checked through or whether you have to carry it yourself.
• Accessibility: the Sky Line is step-free and therefore easy to use with luggage trolleys, prams or a wheelchair.
• Into the city: to get from Terminal 3 into the centre, first take the Sky Line to Terminal 1 and from there the S-Bahn (S8/S9).
• During disruptions: should the Sky Line ever be out of service, replacement transport (such as buses) is provided — then follow the announcements and signage.

Why the Sky Line is so handy

The Sky Line makes the large Frankfurt Airport much more manageable: instead of long walks or bus rides, you glide from one terminal to the next in just a few minutes — free and without waiting-time stress. Especially since Terminal 3 came into service, it’s the crucial connection between departures, arrivals and the station for many travellers.

My advice: before your trip, check which terminal applies to your flight, simply follow the signs to the Sky Line at the airport, and allow a little buffer when transferring. Then switching between terminals is no cause for concern but a fast, comfortable affair — and you’ll reach your gate relaxed.