
Yes, Allegiant Air allows you to bring a car seat for your child at no extra charge. It's considered a necessary child safety item and does not count toward your carry-on or checked baggage allowance. However, there are specific rules you must follow regarding its use and stowage to ensure a smooth experience.
If you plan to use the car seat on the plane, your child must have a purchased seat ticket, and the car seat must be FAA-approved. You'll see a label on the seat that states, "This restraint is certified for use in motor vehicles and aircraft." It must be installed in a window seat to not block other passengers' exit path. For rear-facing seats, they are only permitted if they fit within the aircraft seat's dimensions without obstructing the row in front.
If you're checking the car seat at the gate or ticket counter, it's still free. Allegiant recommends using a protective bag to prevent damage during handling. While they don't charge a fee, the airline's liability for damage to checked car seats is limited, so a bag is a good idea.
The following table outlines the key policies and data points for bringing a car seat on Allegiant Air:
| Aspect | Details |
|---|---|
| Fee for Car Seats | No charge. |
| Counts as Baggage? | Does not count as carry-on or checked baggage. |
| FAA Approval Required | Yes, must have certification label. |
| Allowed Seat Positions | Window seat only (to avoid blocking aisle egress). |
| Rear-Facing Seat Policy | Permitted only if it does not encroach on the seat space in front. |
| Gate Checking | Free; protective bags are recommended. |
| Recommended Documentation | Carry a printout of Allegiant's policy from their website. |
| Alternative: CARES Harness | FAA-approved alternative for children 22-44 lbs. |
The most critical step is to ensure your car seat is FAA-approved. If it's not, you will not be allowed to use it onboard. Always double-check Allegiant's official website or contact customer service before your flight, as policies can be updated.

















As a mom who's flown Allegiant with two little ones, I can tell you they're great about car seats. No fee, which is a huge relief. Just make sure you buy a seat for your kid if you want to use it on the plane. We always gate-check ours—it's free, and it's the last thing they handle, so it's less likely to get banged up. Toss it in a cheap bag from Amazon for some protection. Easy.

No extra cost. It's free to bring a car seat, whether you use it in a seat you've purchased or check it. The main rule is that if you use it onboard, it must be FAA-approved and go by the window. If it doesn't have the right sticker, you'll have to check it. Simple as that. Always verify on their website before you pack.

From a perspective, Allegiant's policy is straightforward and passenger-friendly. There is no charge for a car seat. My advice is to decide your strategy. Using it onboard requires an FAA-approved model and a purchased seat. Checking it is free and hassle-free, but I strongly recommend a protective bag. The key is confirming your specific seat model is approved for aircraft use before you head to the airport to avoid any last-minute issues.

If you're nervous about flying with a baby, this is one less thing to worry about. Allegiant does not charge for car seats. You can bring it right to the gate. The flight attendants are usually very helpful if you need a hand installing it. Just look for the FAA sticker on the side of your seat—that’s your green light. It makes the flight safer and more comfortable for your child, and it’s a completely free option on this airline.


