Britax Car Seat Travel Bag

What airlines say about checking a car seat

Listed fit: All Britax car seats and most other brands, per maker. It has wheels.

• 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.