Hey there, My youngest travels with a seat that can attach to a base, and it is certainly your perogative to bring it with you. You can either check it, or put it in the bin above. However, I'm always curious if parents realize that the base is not required to be used with many seats, but simply there to make the in and out of the car a little faster and easier. For regular use, I find it to be great! But for plane travel it's kind of a hassle (for me, that is) and I prefer to just use the seatbelt to strap the seat in. Check with your owners manual for the seat, you may be able to travel with one less baby item, if you desire. 🙂 Best of luck!
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