Which car seat for travel?

[Deleted]

DD is 4yo, 38lbs.  We plan on using the CARES restraint system in the plane (please share your opinion on the CARES if you have any).  So what would be the best seat at the destination?

I'm considering buying a seat just for travel.  I prefer not to get one of our existing car seats since they're huge and heavy!  We have a frontier and a radian.

I am considering the cosco high back booster, but I can't find a manual online to see how to use it after 40lbs.  Does it mean I can't use the LATCH after 40lbs?  I am also looking at the Britax Parkway SGL (uses latch).  Any recommendation?

[frlcb]

I love the CARES but to be honest we stopped using it by 4. Unless you think your 4 year old wouldn't sit still in a seat in the seatbelt I wouldn't bother. And my almost 6 year old is 36 lbs and he is fine in an airplane seat with just the seatbelt.

[dbsk8dance]

We used the cares harness up until this summer with DS. I don't think we'll use it again until dd is ready for it.

We just bought the high back booster for travel. He meets the requirements, so I'm fine with it. He's in a 5 point harness at home, but it's so heavy I just can't bring myself to travel with it.