This post may contain affiliate links. If you book or buy through them, I may earn a small commission at no extra cost to you. Learn more.
When I started planning this trip, the first thing I did was open a calendar and count backwards from the amount of leave Danny can actually take. That is how most trips get planned, I think. You do not decide how many days in Portugal with kids you need. You find out how many days you have, and then you try to make the country fit inside them.
I spent about three weeks making it fit badly. I had a seven-day version that went Lisbon, Sintra, Évora, Lagos, and I looked at it one night at the kitchen table and realized I had written a trip for the two people we used to be. Four hotel check-ins in a week. A three-hour drive on day five. No day anywhere with nothing in it.
So I started over, and this is what I learned. It is the post I wish I had found when I was doing the counting.
The short version
Ten nights is the number. That is enough for two regions, Lisbon and the Algarve, at a pace a small child can hold, with two full days of nothing built in.
If you only have seven nights, do not do two regions. Pick one and go deep. If you have five nights or fewer, stay around Lisbon and Cascais and do not attempt the south at all. Fourteen nights is genuinely better than ten, and if you have it, take it, but the third region is the one I would add last and not first.
Here it is as a list, because this is the part people want:
- 4 to 5 nights: Lisbon and Cascais. One day trip to Sintra. No Algarve.
- 7 nights: One region done properly. Either Lisbon plus the coast around it, or the Algarve on its own.
- 10 nights: Two regions. This is what we are doing.
- 14 nights: Two regions without rushing, or three if one of them is a flat beach town you barely leave.
Why seven nights is the most common mistake
Seven nights sounds like plenty. It is one week of leave, it is the shape of a normal holiday, and if you look at a map of Portugal it looks small. It is small. The whole mainland is about the size of Indiana.
The problem is not distance. It is that seven nights is really five, and five nights does not split into two.
Here is the arithmetic that nobody puts in these posts. You lose day one entirely. We land in the morning, and after an overnight flight with a six-hour time change out of Chicago, the useful part of that day is a walk and an early dinner. You lose the last day too, because you are packing and getting to an airport. That leaves five real days. Then you spend most of one of them moving between regions. Four.
Four good days split between Lisbon and the Algarve is two days in each, and two days in a place with a toddler is barely enough to find the good playground and the café that does not mind a stroller. I have done short city breaks in Lisbon and loved them. I do not think I would love one at this stage of our life.
If seven nights is what you have, I would do all of it in and around Lisbon. Sleep in Cascais, take the train in, and give Sintra one day. You would see less of the country and have a much better week.
What ten nights actually buys you
Ten nights is three nights in Lisbon, four in Cascais, three in Lagos, which is exactly what I have landed on and written out properly in our 10-day Portugal itinerary with kids.
What the extra three nights buy is not more sights. They buy slack. They buy the fourth night in Cascais, which is the one that lets me do a Sintra day trip and still have a day on either side of it where we do nothing. They buy the ability to lose a morning to a bad night of sleep and not have to cancel anything, because nothing was booked.
They also buy one laundry day, which sounds trivial and is not. Ten nights with a toddler without washing something means packing for ten days of a child who gets food on everything, and that is the difference between one suitcase and two. We are renting an apartment in Cascais partly for this reason.
And ten nights is what makes the drive south worth doing. Lagos is around three hours from Cascais. On a seven-night trip that drive costs you a fifth of your time. On a ten-night trip it costs you a tenth, and you get three nights at the other end instead of two.
Five nights, if that is all you have
Five nights still works, and I would not talk anyone out of it. You just have to accept that you are taking a Lisbon trip, not a Portugal trip.
Base yourself in Cascais or in Baixa and do not move. The train between them is about forty minutes and cost us a couple of euros each the last time I did it. You get three real days: one for the things I actually like doing in Lisbon, one for Sintra, and one for the beach at Cascais and nothing else.
That is a good trip. It is the trip I would recommend to anyone flying from the east coast with a child under two, where the flight is shorter and the time change is less brutal than ours.
Fourteen nights, and why we are not doing it
If you have two weeks, you have the best version of this. Four nights Lisbon, five Cascais, five Algarve, and almost nothing that feels like a travel day.
We are not doing it because of leave, not because of pace. If I had the two weeks I would spend them exactly where the ten are, with more nothing in between. I would not add a fourth place.
That is the thing I would say most firmly to anyone with fourteen nights. The instinct is to add Porto, or the Douro, or Madeira. The better use of the extra four nights is more days in the three places you already chose.
What I would skip to save days
Three things, and I have thought hard about all of them.
Madeira. I would not bolt it on at any trip length under about eighteen nights. It is a separate flight and a separate kind of holiday, and I have said before that it is the hardest place in Portugal to recommend for a first trip with a small child. Adding it to a ten-night mainland trip costs you two nights and gains you one real day on the island. Save it.
Porto. I love Porto and it is out. It is three hours north of Lisbon, which means the trip becomes Lisbon, Porto, Algarve, and that is six hours of driving in a ten-night window plus three check-ins. On a seven-night trip it is not a question at all.
A second Algarve town. This is the one people get wrong most often. Albufeira and Lagos are forty minutes apart and it is tempting to do two nights in each. Do not. Pick one, unpack once, and drive to the other for a day if you want to see it. Moving a toddler’s whole setup for two nights is never worth the forty minutes you saved.
I would also skip Ericeira as a stop unless you are there to surf. It is a great town and the swimming is rough, so it does not earn a night on a short trip.
🛒 A few things I use for this
Most of what makes a longer trip workable is logistics, not sights. These are the four things that shaped how many days I thought we could manage.
- A lightweight travel car seat. Portuguese law requires a proper seat for children under three, and rental agencies charge roughly six to ten euros a day, so on a ten-night trip bringing your own pays for itself.
- A compact folding stroller, because how many days of city you can actually do comes down to what you are pushing up those hills.
- Laundry soap sheets. One wash mid-trip is the difference between one suitcase and two, and it is why I book apartments.
- Packing cubes, which are the only reason a three-stop trip does not turn into repacking from scratch twice.
As an Amazon Associate I earn from qualifying purchases.
The pace rule I am planning around
One thing a day. That is the whole rule, and it is what actually decides how many days you need more than any distance does.
One thing means one outing that requires getting somewhere. Belém is a thing. Sintra is a thing, and honestly Sintra is a day and a half of thing compressed into one. The tile museum is a thing. A morning at the beach is a thing. Lunch is not a thing and neither is a playground, because those happen near where you are sleeping.
If you count your must-dos and divide by one, you get your number of days, and then you add the two travel days and one buffer day. I had eleven must-dos on my first list. That is a thirteen-night trip, which I do not have, so I cut the list to seven. Cutting the list is easier than cutting the days.
Where you sleep changes this arithmetic more than anything, which is why I spent so long on it in where to stay in Portugal with kids. A flat, walkable base means an outing can be forty minutes long. A villa twenty-five minutes from town means every single thing is a drive, and suddenly one thing a day is all you can physically do.
Everything above is in my Portugal for Families guide too, if you would rather have it in one place than in eleven open tabs. It is a 13-page PDF with the full 10-day itinerary and a section on each stop written for traveling with small children. Portugal for Families is here.
How trip length and timing push against each other
There is one more thing that changed my number, and it is the month.
We are going in May, and I went through the reasoning in the best time to visit Portugal with kids. Shoulder season makes a shorter trip work better than peak season does, because you are not losing the middle of every day to heat. In August you effectively get half-days, morning and late afternoon, and a seven-night August trip is more like a five-night one.
So if you are locked into July or August by school holidays, add nights if you can. The same itinerary needs more days in the heat than it does in May. That is not a thing I understood until I started counting hours rather than days.
Questions I get about trip length
Is one week enough for Portugal with kids?
It is enough for one region, not for the country. Seven nights is five real days once you take off arrival and departure, and splitting five days between Lisbon and the Algarve gives you two days in each. Do Lisbon and the coast around it instead and you will have a much better week.
Can you do Lisbon and the Algarve in seven days with a toddler?
You can, and I would not. The drive is around three hours and it costs you a disproportionate share of a short trip, plus a second check-in and a second unpacking. At ten nights it stops being a problem. At seven it is the thing that will make everyone miserable on day five.
How many days do you need in Lisbon with kids?
Three nights, which gives you two full days. That is enough for Belém on one day and the city centre on the other, at toddler pace, with a pastry stop in both. I would not give Lisbon more than three nights with a small child, because the hills and the calcada paving make it tiring in a way that flatter towns are not.
How many days do you need in the Algarve with kids?
Three nights minimum and four is better. The Algarve rewards doing very little, so unlike Lisbon it absorbs extra days well. If you are choosing where to put a spare night on a ten-night trip, I would put it here or in Cascais rather than in the city.
Is Sintra a day trip or does it need its own night?
A day trip, from Cascais or from Lisbon. It is about thirty minutes from Cascais and I plan to take the 434 bus. There is more than a day of things to see there, but it is a steep, crowded, hard-work day, and sleeping there means putting a child to bed somewhere far less convenient. Go for the day, see Pena, and leave the rest.
Should we add a night somewhere to break up the drive south?
No. Three hours is one nap and a stop, and a one-night stay costs you more in packing and unpacking than the drive does in hours. We are flying into Lisbon and out of Faro so we only make that drive once, which does more for the trip than any mid-point night would.
Where we landed
Ten nights, three stops, two days with nothing in them.
The version of me who went to Portugal at twenty-nine would think that was a waste of a flight. I would have fit in Évora and Óbidos and probably Porto, and I would have come home tired and happy. I am not that traveller now, and rest is not optional for me with an autoimmune disease, so the two empty days are the part of the plan I am least willing to give up.
If you are still counting, the rest of what I have on the country is in the Portugal archive, including my honest take on whether Portugal is good for families and the Cascais restaurants I will be going back to first. And if your number of days is really a question about money, I broke every line of it out in is Portugal expensive, and what I am budgeting for our family trip.
