score:6
Generally speaking depending on the age of Children you are allowed to bring child safety seats on flights. See question asked here on the subject. So if you're allowed to carry and use the child seat on the flight just bring your own.
Car Rental companies will provide a child seat(s) for you irrespective of whether it's someone large as Hertz or someone smaller.
EDIT
Give kids ages the rules in the US which are in most cases similar to the EU you will need to have a car seat similar this one, so if your seats are similar you more then likely be fine.
As far as ISOFIX is concerned I am yet to encounter a seat that was ISOFIX only, so you should not have an issue using it in any car.
One more note. We personally always opted for our own seat because one time that we had to rent our son couldn't get comfortable in the seat for a somewhat prolonged journey.
Upvote:0
As I currently work in a car rental agency and I have been doing so for ages, I have seen the following:
Clients child seats might not be able to be installed in all models (isofix)
If you have isofix child seats make sure that the selected vehicle has isofix bases.
Sometimes it costs quit a lot to carry your own seats on the plane, even compared to what car rental companies charge.
Big companies count on extra charges like child seats and extra driver, to increase the daily rate even 100%!
Smaller companies often provide child seats for free.
So if I were you, if there is no charge for getting them on the plane and if carrying them together with all the family luggage is not an issue, I would bring my own and book the car accordingly. If I had to pay extra for the tickets, or if I had already enough luggage to worry about, I would try and find a company that offers free child seats, (ideally in very good condition and bio cleaned before the rental starts). If you choose a small you might get them for free (and installed as well).
Upvote:3
It depends where you are traveling from. The US and the EU use different institutes to test for road safety. If you would be bringing your EU child seat to the US or vice versa, you are legally not compliant to local rules.
I am pretty sure both type of child seat will be similar in providing a level of safety. I have heard that some renting agencies do require to use a seat that is compliant with local laws, so in that case you can end up renting a child seat, even if your brought your own.
Upvote:8
Pros of bringing your own seat:
Pros of renting a seat:
If I was landing late at night somewhere that I didn't speak the language, or if my children were creatures of habit who didn't sleep well in unfamiliar situations, I'd bring the seats and control my own destiny. If I wanted to use the seats on the plane (having paid for kids tickets), I'd bring the seats. If I had complicated stroller/car seat adapty combos, and wanted to use those strollers at my destination, I'd bring the seats that worked with the strollers. If I hadn't bought plane tickets for the kids, had lots of time on landing and knew that my kids accepted unfamiliar things without much complaint, I'd rent the seats for maximum convenience and bring some soft flannel blankets to make random seats more appealing to them.
I don't know how long you're renting for, but in the overall budget of a flying vacation for four people, I wouldn't let 20 or 30 Euros factor into the decision at all. I would just be trying to make the day of flying and arriving, and the day of leaving, as easy as can be, and to keep my kids content.