Mainz to Hennef (Sieg) train

Trains from Mainz to Hennef (Sieg) start at €17.94 and take 1h 42m at their fastest.

MainzMainzHennef (Sieg)Hennef (Sieg)

The Trains from Mainz to Hennef (Sieg) starts at €17.94 and takes 1h 42m door to door, run by 2 operators over 130 km, with around 5 departures a day. Fares bottom out about 30 days before departure.

Checked September 13, 2026Priced for September 29, 2026One passenger, all fees included

  • 1h 42mDoor to door
  • 58mMoving
  • €17.94From
  • 4.3 kgCO2
Real services

The cheapest and the fastest on September 29, 2026

Two journeys we can sell today, with the service number each operator files them under.

Cheapest€15.74
  1. DB Fernverkehr DB138606:151h 1m07:16Mainz HbfHennef (Sieg) station

Door to door 1h 45mCO2 4.3 kgChanges 0Refundable

Fastest€17.39
  1. trans regio Deutsche Regionalbahn DR720006:5358m07:51Mainz HbfHennef (Sieg) station

Door to door 1h 42mCO2 4.3 kgChanges 0Refundable

Lowest CO2€21.77
  1. DB Fernverkehr DB531007:3036m08:06Mainz HbfKoblenz Hbf
  2. DB Fernverkehr DB822809:2532m09:57Koblenz HbfHennef (Sieg) station

Changes at Koblenz, with 79 minutes between services and a walk of about 5 minutes.

Door to door 3h 11mCO2 4.2 kgChanges 1Refundable

Carriers

Rail operators

Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.

Every operator we sell on this corridor. Speed is the carrier's own typical cruising speed, not the average over this route.
OperatorFrom
DB Fernverkehr€15.74
trans regio Deutsche Regionalbahn€16.84
  • DB Fernverkehr
  • trans regio Deutsche Regionalbahn

The train gets you into Hennef (Sieg). It does not get you a bed, and neither do we.

A hotel room

Where to stay in Hennef (Sieg)

Filter by neighborhood and by nightly price, and the map tells you what is a walk and what is a cab.

Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.

Booking window

When to book Mainz to Hennef (Sieg)

The same search run across the whole booking window, so the shape of the curve is visible rather than described.

  1. €19.5990 days
  2. €16.8460 days
  3. €15.1945 days
  4. €12.9930 days
  5. €19.5921 days
  6. €21.7814 days
  7. €20.697 days
  8. €25.093 days
  9. €27.291 days
Cheapest lead time
Fares bottom out around 30 days ahead, at €12.99.
How much it moves
The gap between the cheapest and most expensive lead time is 110 percent. The most expensive point is €27.29, 1 days out.
What that means
Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Day of the week

Which departure day costs least

Median cheapest fare for each weekday, taken across the next three weeks of real prices.

  1. €20.69Sun
  2. €21.79Mon
  3. €17.94Tue
  4. €19.59Wed
  5. €26.19Thu
  6. €23.44Fri
  7. €23.99Sat
Terminals

Where you leave from and where you arrive

The stations, airports and ports each mode on this corridor actually uses.

Mainz

Rail
  • Mainz Hbf
  • Mainz Nord station
  • Mainz-Kastel station

Hennef (Sieg)

Rail
  • Hennef (Sieg) station
  • Merten station
  • Blankenberg station
The journey

What the journey actually looks like

Direct or connecting, how far the route really runs, and what happens when a connection is missed.

Direct or connecting
40% of the services we sell on this corridor run through without a change. The remaining 60% involve one connection.
How far it really runs
The route covers 130 km against 113 km in a straight line, a detour of 15 percent. Track and road geometry account for the difference.
Where the change is
Connections are made at Siegen, Koblenz, Neuwied. The gap between arriving and leaving is 63 minutes, of which about 5 is walking.
If the connection is missed
The tightest connection we sell here has a 15 percent chance of not being made on the timetable alone. Both legs are sold on one booking, so a missed connection is ours to fix and you are rebooked at no charge.
First and last departure
The first service of the day leaves Mainz at 06:15 and the last at 07:30, across 5 departures. The return direction keeps its own timetable, so the times back are not these times reversed.

Questions about Mainz to Hennef (Sieg)

The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.

How long does the Train from Mainz to Hennef (Sieg) take?

The Train from Mainz to Hennef (Sieg) takes 1h 42m door to door, of which 58m is spent moving. The route runs 130 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.

How much does the Train from Mainz to Hennef (Sieg) cost?

The Train from Mainz to Hennef (Sieg) starts at €17.94 for one passenger, checked on September 13, 2026. A typical fare is €21.77. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.

Who runs the Train from Mainz to Hennef (Sieg)?

2 operators run the Train from Mainz to Hennef (Sieg): DB Fernverkehr, trans regio Deutsche Regionalbahn. Between them they file around 5 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.

Which terminal does the Train from Mainz to Hennef (Sieg) use?

The Train from Mainz to Hennef (Sieg) leaves from Mainz Hbf and arrives at Hennef (Sieg) station. Allow about 44m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.

When should I book the Train from Mainz to Hennef (Sieg)?

Fares for the Train from Mainz to Hennef (Sieg) bottom out around 30 days ahead, at €12.99. The gap between the cheapest and most expensive lead time across the window is 110 percent, measured on September 13, 2026. Booking inside the final week has consistently cost more.

How much CO2 does the Train from Mainz to Hennef (Sieg) produce?

The Train from Mainz to Hennef (Sieg) produces about 4.3 kg of CO2 per passenger over 130 km, which works out at roughly 33 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.

What is provided on board the Train from Mainz to Hennef (Sieg)?

Operators on the Train from Mainz to Hennef (Sieg) publish Power outlets, Wi-Fi. That is what 2 carriers on this corridor state about their own fleets, across a journey of 1h 42m door to door. Where a carrier publishes nothing, this page lists nothing for it.

Where these numbers come from

Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.

Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.

Defined in full at Door to door, Fares, The booking window, Carbon

On this page
Every figure above was computed for Mainz to Hennef (Sieg) on September 13, 2026: 130 km of route against 113 km in a straight line, 5 services a day, 2 operators, a cheapest fare of €17.94, and 1h 42m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.

Related journeys

The train is the simple part. What you do once you are in Hennef (Sieg) is somebody else's catalog.

A guided tour group

Things to do in Hennef (Sieg)

The tickets worth having in advance, because the line at the door is usually the whole morning.

Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.

Plan with Ori

Ori, the trip planner

Ask it something like this