Layover guide · CGN · Last reviewed 27 June 2026
Layover in Cologne Bonn Airport CGN: what to do hour by hour
Two terminals side by side, two Priority Pass lounges, free wifi with no time limit, and a cathedral 15 minutes away by train. Cologne Bonn is one of the few German airports that never closes, and one of the easiest to spend a layover in.
- Layover verdict
- One of the most relaxed layovers in Germany. The airport is compact, both terminals share a single landside walkway, and Koln Hbf is about 15 minutes away on the S19 with Cologne Cathedral standing right outside the station exit. Anything over 4 hours buys you the city, and the terminals stay open all night.
- Best move
- With under 3 hours, stay airside and use the lounge in your terminal if you carry Priority Pass. With 4 hours or more, ride the S19 to the cathedral and the old town, then build slack for the return. Connecting across the two terminals, give the landside walk and the fresh security queue real time.
- The one thing to know
- Terminal 1 and Terminal 2 share no airside link. Eurowings and most network carriers use Terminal 1, Ryanair uses Terminal 2, and any connection across the two means exiting, a few minutes of covered walkway, and a fresh security queue. Schengen entry rules apply, so verify before travel.
First, orient yourself
The 10 minute version of CGN
Cologne Bonn, officially named after Konrad Adenauer, sits in forest about 15 km southeast of Cologne, with Bonn a similar distance to the south. Passenger traffic splits across two terminals that stand next to each other. Terminal 1 is the older building, a central hall with piers B and C, where Eurowings and most network carriers check in. Terminal 2 opened in 2000, a glass and steel rectangle holding the D gates, and handles Ryanair plus a rotating cast of low cost and leisure operators.
The structural catch is the terminal split. A covered landside walkway connects the two buildings and the walk takes a few minutes, allow 10 with bags, but there is no airside link, so changing terminals always means a fresh trip through security. Plan your time around the terminal your flight uses, and if you connect across the two, treat the walk and the second checkpoint as part of the journey rather than an afterthought.
What sets CGN apart in Germany is the clock. The airport holds a night flight permit with no end date, so passenger flights depart and arrive through the night here, something Frankfurt and most other German airports forbid, and the terminals never close. Free wifi runs unlimited on the AIRPORT FREE WIFI network with no time limit and a simple one time registration, which puts CGN ahead of plenty of larger airports.
Getting into the city is the easy win. The S19 S Bahn leaves from the rail station under Terminal 1, reaches Koln Hbf in about 15 minutes, and runs every 20 minutes on weekdays and every 30 minutes on weekends and holidays. A single VRS ticket costs 3.50 euro. The payoff is unusually good, because Cologne Cathedral stands directly outside the main station exit, so even a short city run lands you at one of Europe's great gothic buildings.
Hour by hour
What your layover actually buys you
3 hours
Stay airside and use your terminal
Three hours is comfortable for a same terminal connection and a reasonable amount of time to settle in. Pick the lounge in your terminal, since the two do not connect airside: The Lounge in the Terminal 1 C pier, or the Terminal 2 lounge opposite gate D50 in the non Schengen area. Both take Priority Pass, so a card turns a short wait into a meal and a seat.
Connecting across the two terminals in three hours is doable but not lazy, because you exit, walk the covered link, and clear security again. Give yourself 60 to 90 minutes for that move, more if you have checked bags to collect and drop again.
5 hours
The cathedral is genuinely realistic
Five hours is enough for a real look at Cologne. The S19 reaches Koln Hbf in about 15 minutes, and the cathedral stands right outside the station, so the round trip plus a couple of hours in the old town fits comfortably. Walk the riverside, see the cathedral interior, and have lunch in the Altstadt, all within a few minutes of the station.
If you would rather stay put, the Terminal 1 lounge in the C pier is the better of the two and the building has the wider food and shopping run, so base yourself there even if you eventually fly from Terminal 2.
8 hours
A proper half day in the city
With 8 hours, central Cologne is an easy half day rather than a dash. From Koln Hbf the cathedral, the old town, the Rhine promenade and the Roman Germanic and Ludwig museums are all walkable, and the tram fills any gaps. Bonn is also reachable: the SB60 Airport Express bus from outside Terminal 1 reaches Bonn Hbf in about 30 minutes.
Aim to be back at the airport about 90 minutes before a Schengen departure, more if you fly from the other terminal than the one you based yourself in, since the cross terminal move adds a walk and a security queue. Verify any visa rules before travel.
Overnight
Open all night, but bring a layer
CGN is the rare German airport where overnight is straightforward, because the night flight permit keeps the terminals open around the clock with a handful of 24 hour food outlets, ATMs and a petrol station shop. Staff tolerate sleepers with a ticket, so keep your boarding pass handy because they do check.
Comfort is the weak point. There are no rest zones or sleep pods, the lights stay bright, announcements continue, and the buildings run cold at night. For a real bed the Moxy Cologne Bonn Airport is a short walk from Terminal 1 with 24 hour check in, and the Leonardo Hotel is about 7 minutes away on foot with a free shuttle.
City escape
Leaving the airport: the honest math
| Question | Answer |
|---|---|
| Is leaving realistic | From about 4 hours, with Koln Hbf around 15 minutes away and the cathedral outside the station |
| Document to leave | Schengen entry rules apply; non Schengen arrivals clear passport control. Verify visa rules before travel |
| Train | S19 S Bahn from the station under Terminal 1 to Koln Hbf, about 15 minutes |
| Frequency | Every 20 minutes on weekdays and every 30 minutes on weekends and holidays |
| Fare | A single VRS ticket about 3.50 euro from the machines or the DB and VRS apps |
| Bonn option | SB60 Airport Express bus from outside Terminal 1 to Bonn Hbf in about 30 minutes |
| Be back at the airport | About 90 minutes before a Schengen departure, more for a cross terminal flight |
The train wins for almost everyone heading into Cologne. It is fast, frequent and cheap, and it drops you at the foot of the cathedral, so the value of even a short city run is high. The return is where people lose the buffer: you ride back, clear security, and a flight from the other terminal adds the covered walk on top. None of it is slow by big airport standards, but it stacks up, so the 90 minute rule is a floor rather than a cushion. With under 4 hours, the lounges and the terminal itself are the better use of the time.
Check lounge access for CGN
Cologne Bonn has two Priority Pass lounges, one in each terminal, and both sell entry at the door, so you do not need status or a business class ticket. See the full door list with hours, access methods and current prices.
Check lounge accessSome links may earn us a commission at no cost to you.
FAQ
Cologne Bonn layover questions
Is Cologne Bonn Airport open 24 hours?
Yes. CGN holds a night flight permit with no end date, which makes it one of the very few German airports with departures and arrivals through the night. The terminals stay open around the clock, and a handful of food outlets, ATMs and a petrol station shop run 24 hours. Expect the airport to feel quiet but never closed in the small hours.
How long do I need for a connection at CGN?
A same terminal connection is comfortable in a couple of hours. A cross terminal connection needs more, because Terminal 1 and Terminal 2 share no airside link, so you exit, walk the covered landside walkway of a few minutes, and clear security again. Allow 60 to 90 minutes for that move, more with checked bags to collect and drop.
Can I walk between Terminal 1 and Terminal 2 at CGN?
Yes. The terminals stand next to each other and are linked landside by a covered walkway, so the walk takes a few minutes, allow 10 with bags. There is no airside connection, so changing terminals always means passing security again, and each terminal runs its own check in and security.
How do I get from Cologne Bonn Airport to the city center?
Take the S19 S Bahn from the station under Terminal 1. It reaches Koln Hbf in about 15 minutes, runs every 20 minutes on weekdays and every 30 minutes on weekends, and a single VRS ticket costs about 3.50 euro. The cathedral stands directly outside the main station exit, which makes a short city run realistic on a 4 hour layover.
Can I sleep inside CGN overnight?
Yes, the terminals stay open all night and staff tolerate sleepers with a ticket, so keep your boarding pass handy. There are no rest zones or sleep pods, only benches without armrests and a few sofas, with bright lights and a cold building at night. For real rest the Moxy Cologne Bonn Airport is a short walk from Terminal 1.
Is the wifi free at Cologne Bonn Airport?
Yes. Wifi runs free and unlimited across both terminals on the AIRPORT FREE WIFI network, with no time limit and a simple one time registration that asks for a name and nothing more. There is no SMS code and no data cap, which puts CGN ahead of plenty of larger airports.
Keep planning
More CGN guides and nearby airports
Join Gate Notes
Lounge offers and the layover intel you need at 2am, in your inbox before you fly. Free.
No spam. Unsubscribe any time.