Nobody warns you about this one.
You arrive in Paris with a baby and a stroller, you go down into the metro, and you discover that the most famous public transport system in the world was built in 1900 and has the staircases to prove it. Flights of them. Everywhere. And almost no lifts.
This isn't a complaint. It's just something you need to know before you plan your days, because it will shape them more than anything else.
The honest picture
Of Paris's sixteen metro lines, exactly one is fully step-free: Line 14. Every one of its stations has lifts running from street level all the way down to the platform, and the platform floor is level with the train, so you roll straight on. No lifting, no gap, no folding the stroller with a baby under one arm.
The other lines have lifts in a handful of stations at best. Most have none at all.
And this isn't laziness or neglect. Making the whole network step-free would cost billions, and in around half of stations it's simply not physically possible: the Paris underground is a tangle of sewers, unstable ground and overlapping tunnels, with no room at street level for a lift shaft. The 2005 French disability law sets no deadline for the metro precisely because much of it can't be done.
So plan around it rather than hoping for the best.
Line 14 is your friend. Build around it.
Line 14 runs north to south through the city, it's automatic, it's fast, and it's the one line you can use with a stroller without thinking about it. If you're choosing where to stay, or planning a day out, a location near Line 14 will make your week dramatically easier.
It's worth taking a longer route on Line 14 rather than a "quicker" one that involves three flights of stairs at a connection. The map time is not the real time when you're pushing a stroller.
The trap nobody mentions: "accessible" doesn't mean the journey is
This is the single most useful thing in this article, so I'll be blunt about it.
A station can be listed as "accessible" because a lift connects the street to the platform. That's true, and useful. But the moment you need to change lines, everything changes. Interchanges often involve long corridors, stairs between platforms, and level changes that no lift covers.
So a journey that looks perfectly logical on the map can be impossible on the ground. Two accessible stations do not make an accessible journey. Check the connection, not just the endpoints.
At the big interchanges — Châtelet, Gare du Nord, Montparnasse — the walk between lines can run several hundred metres with level changes along the way. With a stroller and a tired toddler, that's not a connection, that's an expedition.
Check the lifts the morning you travel
Lifts break. Regularly. And a broken lift in a station with no alternative means your whole route has to change, usually while standing at the top of a staircase with a baby.
The RATP app shows lift outages in real time. Check it before you leave, not when you arrive. It takes thirty seconds and it will save you at least one very bad afternoon.
Île-de-France Mobilités also has a journey planner that lets you filter by mobility profile and shows whether each step of a route is actually usable, lifts included. It's more reliable than a standard metro map for this.
What to do instead of the metro
Buses are the answer most visitors overlook, and they're often better than the metro with a stroller. Paris buses have low floors and ramps, dedicated stroller space, and no stairs at all. They're slower, but you see the city, and you're not fighting a staircase at Belleville with a sleeping baby.
Two practical things about buses. First, avoid rush hour — roughly 8 to 9:30am and 5 to 7:30pm. A packed bus with a stroller is its own kind of misery, and honestly this applies to every form of transport here. If your day is flexible, travel between 10am and 4pm and the city becomes a different place.
Second, a trick that will change your week: in Google Maps, once you've entered your route, open the transport options and deselect "subway", leaving only bus and tram. Google will stop suggesting routes with four staircases and start showing you the step-free ones. Most visitors never find this setting. It takes ten seconds.
Trams are similarly step-free, though they mostly circle the edges of the city.
And walking, honestly. Paris is small. A journey that looks far on the metro map is often twenty-five minutes on foot, above ground, in the fresh air, with a baby who falls asleep on the way. Many days, that's the better option.
When the day is broken: taxis with car seats
Some evenings you simply cannot face the journey home. Everyone is done, the baby is screaming, and the twenty-minute walk has become impossible.
Regular taxis in Paris don't carry car seats, but several companies specialise in exactly this — they arrive with a car seat, cosy or booster fitted to your child's age, and most of them include it free of charge. You need to book in advance rather than hail one in the street, and you'll be asked for your children's ages and approximate weights so the right seat is ready. Search for "taxi siège bébé Paris" and you'll find several options.
One thing worth knowing: legally, providing an appropriate seat is the driver's obligation, and you can refuse a ride without charge if a car arrives without one. But in an accident, it's your child in the car. So book properly, and don't accept "it's fine for a short trip".
Ask for help. It works, and it's the nicest part.
Here's something I didn't expect when I moved here: Parisians will help you with a stroller. Almost always.
At stations like Montparnasse where there's no lift and the staircase seems to go on forever, you will not be left alone at the bottom of it. Someone stops. Someone grabs the other end. Often it happens before you've even asked — you just look up and there are hands on your stroller.
In my experience it's usually a woman. Other mothers, mostly, who know exactly what this moment feels like because they've stood there themselves. There's a kind of silent freemasonry among women with children in this city, and once you're in it you feel it everywhere.
Parisians have a reputation for being cold. And it's true they don't smile at strangers the way people do elsewhere. But that face is not unfriendliness, it's just the local manner. Underneath it, most of them are decent people who will absolutely carry the front of your stroller up two flights of stairs and disappear before you've finished thanking them.
So ask. Or don't even ask — pause at the bottom of the stairs and look like you're about to lift. Someone will appear.
If you're travelling with a wheelchair
I want to be careful here, because a stroller and a wheelchair are not the same situation. With a stroller you can, at a push, fold and carry. In a wheelchair you cannot, and a station without a lift is simply closed to you.
Line 14 is genuinely accessible, and buses and trams are step-free. But the network as a whole is not, and interchanges are the weak point. If you're planning a trip with a wheelchair user, use the Île-de-France Mobilités accessible journey planner rather than any general guide, including this one, and consider contacting RATP assistance in advance for complex journeys — agents can help with boarding at certain stations.
The short version
Stay near Line 14 if you can. Use buses more than you think you should. Avoid rush hour. Check lift outages the morning you travel. Never trust a connection you haven't verified. And walk — Paris rewards it.
One more thing
If you're still deciding where to stay, I'll write properly about this soon — but I think the 13th arrondissement is the most underrated place in Paris to base yourself with children. Line 14 runs through it, it's genuinely residential, the parks are real parks rather than photo opportunities, and you eat extraordinarily well for very little. More on that another time.
And when the day is simply too much
Some days the logistics win. You've done three connections, the baby hasn't napped, and the idea of one more staircase is unbearable.
That's the reason Travel Sitter exists. Vetted, bilingual sitters for families visiting Paris — identity checked, criminal background check, in-person interview, references and first-aid. For one evening, one afternoon, or one day when you simply need to stop. No commitment, no subscription.