BubbleBum Inflatable Booster

Flying with the Inflatable Booster

American lists “Booster seats with no approval label or shoulder harness” under seats and devices not approved for use on board (source).

What airlines say about car seats:

• American: “Each ticketed customer is allowed 1 stroller and 1 car seat to be checked free of charge” “If an unoccupied, adjoining seat is not available, the gate agent will check the safety seat to your final destination.” Source
• Alaska: “We will transport your child's car seat and stroller free of charge as checked baggage.” Source
• JetBlue: “Checking a child safety seat will not count towards your checked baggage allowance and there is no fee assessed” Source
• Spirit: “One (1) car seat will be accepted per child as checked baggage at no charge.” Source
• Frontier: “strollers and car seats can be checked for free.” Source
• Allegiant: “There is no charge for checking or gate checking one car seat per fare-paying passenger.” Source
• Breeze: “Child seats may be carried on board the aircraft if a seat has been purchased for the Infant or Child” Source

Quoted from each airline's page as of 2026-11-02.