Riding the Luzern–Interlaken Express: seating, the Brünig cog, and what your pass covers

What the Luzern–Interlaken Express actually is

It isn’t a special train with a name painted on the side, and it isn’t one of Switzerland’s surcharge panoramic services. The Luzern–Interlaken Express is the marketing name for the regular Zentralbahn and BLS service that links Luzern Bahnhof to Interlaken Ost, running on standard second- and first-class stock with ordinary compartment seating. What makes it worth planning around is the route: Lake Lucerne out of the city, a cogwheel climb over Brünig Pass, then a drop down to Lake Brienz and into Interlaken, all in under two hours on a ticket you may already own.

Because it uses regular track and regular trains, there’s no supplement, no compulsory reservation and no premium fare — which also means no guaranteed window seat. Get this one detail right and the trip pays for itself in views; get it wrong and you’ll spend the Brünig climb looking at the back of someone’s rucksack.

Journey time and how often it runs

Segment	Typical time
Luzern Bahnhof → Giswil	~35 min
Giswil → Brünig Pass (cogwheel section)	~20 min
Brünig Pass → Meiringen	~20 min
Meiringen → Interlaken Ost	~35 min
Total, Luzern to Interlaken Ost	1 h 50–2 h

Trains run roughly hourly for most of the day, with extra services in July and August. Some connections require changing at Meiringen from the Zentralbahn train onto a BLS service on the same platform; others run through without a change. Check the specific connection on your ticket or the SBB app — don’t assume every departure is a single-seat ride.

For onward or return journeys, Swiss trains explained covers how the national timetable, platform numbering and connection times work if this is your first time relying on Swiss rail for a multi-stop day.

Which side to sit on

This is the question that matters most, and the answer is simple: sit on the right-hand side heading from Lucerne to Interlaken. Doing the trip in reverse, from Interlaken to Lucerne, sit on the left instead — same logic, opposite direction.

Stretch	Right-side view (Lucerne → Interlaken)
Leaving Luzern Bahnhof	Lake Lucerne and the lower slopes of Mount Pilatus
Sarnen to Giswil	Lake Sarnen, then Lake Lungern
Giswil to Brünig Pass	The cogwheel switchbacks, with the valley dropping away below
Brünig Pass to Meiringen	First views of the Bernese Oberland peaks
Meiringen to Interlaken	Lake Brienz, turquoise water against dark forest

There’s no seat reservation to lock this in, so the practical move is to board at Luzern Bahnhof rather than joining partway, and to walk the platform to a car that isn’t already full. On a clear Saturday in peak summer, arrive on the platform 10–15 minutes before departure. Off-season and on weekday mornings, this is rarely an issue.

The Brünig cogwheel section, explained

The stretch between Giswil and Meiringen is where the train earns the name “express” least literally and the trip its scenery most literally. The gradient over Brünig Pass is too steep for a normal train to grip the rails reliably, so a rack-and-pinion (cogwheel) system takes over for the steepest sections — a toothed rail between the running rails that a gear wheel under the train engages. You’ll notice the train slow markedly and hear a different, more mechanical rhythm; that’s normal, not a fault.

This makes the Brünig line unusual in the Swiss network: it’s metre-gauge track linking two standard-gauge SBB systems (Lucerne’s network on one side, the Bernese Oberland’s on the other), and it’s one of the few places a scheduled, non-tourist train uses a cogwheel purely to get up a working commuter and freight route. If you’ve ridden the rack sections up Mount Pilatus or Mount Rigi, the sensation is similar, just at a gentler gradient and a much longer duration.

For a deeper look at how Switzerland’s classic panoramic routes compare, from surcharge lines to free-with-your-pass regional trains like this one, see the GoldenPass line guide, the Glacier Express guide and the Bernina Express guide — useful context if you’re deciding which scenic train deserves the surcharge and which doesn’t.

What your pass covers — and what it doesn’t

This is the good news part of the trip: because it’s a regular scheduled service, not a designated panoramic train, the usual Swiss rail passes apply without a supplement.

Pass	Covers this route?	Notes
Swiss Travel Pass	Yes, in full	No supplement, no reservation
Saver Day Pass	Yes, in full	Same as above
Half Fare Card	Yes, 50% off	Standard discount fare applies
Tell-Pass	Yes, within its regional zone	Confirm Interlaken falls inside your Tell-Pass zone before relying on it end to end
Point-to-point ticket	Yes	Standard SBB fare, no premium for the route itself

Compare that with the Glacier Express or GoldenPass Panoramic, both of which need a paid seat reservation on top of your pass. If your main goal is the Brünig scenery rather than a specific branded panoramic carriage, this route delivers most of the visual reward for none of the surcharge. Full pass mechanics, including where the Swiss Travel Pass and Tell-Pass differ, are in the Swiss Travel Pass guide and the Tell-Pass guide.

Doing it as a day trip from Lucerne

The most common way to ride this line is there-and-back from Lucerne in a single day, using Interlaken as a base to reach the Bernese Oberland rather than staying overnight.

• Out on the early train, back on a late-afternoon one. With roughly two hours each way, a 08:00-ish departure gets you into Interlaken by 10:00, leaving a full day before a train home around 18:00.
• Break the outbound leg at Brienz. Right on Lake Brienz, with a lakeside promenade and woodcarving workshops, it’s an easy 20–30 minute stop if you take an earlier train and pick up the next one.
• Break the outbound leg at Meiringen instead, if the Aare Gorge or Reichenbach Falls interest you more than a lakeside town — both are a short walk or local bus from Meiringen station.
• From Interlaken, connect onward to the Jungfraujoch, Grindelwald or Lauterbrunnen rather than turning straight back — see the Interlaken day trip guide and the Jungfraujoch day trip guide for how those connections and timings work from Interlaken Ost.

For travellers weighing whether to base themselves in Lucerne or Interlaken for a longer Bernese Oberland stretch, Lucerne vs Interlaken lays out the practical trade-offs — Lucerne’s better rail hub position against Interlaken’s proximity to the high peaks.

a guided Lucerne-to-Interlaken day tour that handles the connections for you is worth considering if you’d rather not track the Meiringen change yourself, particularly on a first visit or with a tight onward schedule.

Combining it with Jungfraujoch or the Bernese Oberland

Riding the Brünig line as a standalone out-and-back is satisfying on its own, but most visitors use it as the first leg of a longer push into the Bernese Oberland. From Interlaken Ost, connections run on to Grindelwald, Lauterbrunnen and up toward the Jungfraujoch — Europe’s highest railway station — though that full connection adds several more hours and a separate, non-discounted final stretch above Kleine Scheidegg.

If Jungfraujoch is the goal, budget a genuinely long day: Lucerne to Interlaken is under two hours, but Interlaken to the Jungfraujoch summit and back is most of a further day by itself. A private return trip from Lucerne to the Jungfraujoch by cogwheel train compresses this into a single organised day if you don’t want to plan four separate connections and buy the summit ticket separately.

Best rated for realistic timing overall: best mountain excursions from Lucerne ranks the Bernese Oberland options against closer alternatives like Pilatus, Rigi and Titlis, useful if you’re not certain Interlaken deserves a full day versus a shorter trip nearer Lucerne.

Practical notes before you go

• Buy your ticket in advance through the SBB app or at Luzern Bahnhof, not on board — station machines and the app both sell point-to-point tickets if you’re not using a pass.
• Luggage racks are limited on the Zentralbahn cars; if you’re travelling with large suitcases rather than a day bag, keep them near you rather than expecting generous overhead space.
• Boat timetables at Lake Brienz or Lake Lucerne don’t automatically sync with this train’s schedule — if you’re planning to combine the ride with a paddle steamer, check both timetables separately; see boat timetables explained.
• Winter service continues running even when the Brünig Pass road closes to cars in snow, which is one of the clearer arguments for taking the train over driving in December through March.
• This isn’t the same experience as the mountain cogwheel lines. If you’re expecting Pilatus-style steepness throughout, recalibrate: the Brünig rack sections are shorter and gentler, embedded in what is otherwise a normal regional train.

Where this fits in a longer Lucerne stay

A Luzern–Interlaken Express round trip is a full day on its own, so it’s worth deciding in advance whether it replaces or supplements other day trips. For itinerary planning across a 2- to 5-day Lucerne stay, see how many days in Lucerne and day trips from Lucerne for how this ranks against Pilatus, Rigi or a Zurich day out.

If Interlaken and the Bernese Oberland end up as more than a day trip, consider staying a night there and folding the return leg into a longer loop — the destination pages for Interlaken, Lake Brienz and Meiringen cover what each town offers beyond the station platform.

A last honest note: this line gets busy with both tourists and Bernese Oberland commuters at the same time on summer weekday afternoons, and unreserved seating means no guarantee of a window spot on a packed departure. If the specific view matters more than the specific hour, build a little flexibility into which train you catch.