Spirit Airlines Infant Policy: Complete Travel Guide
- Thomas grey
- Nov 17, 2025
- 3 min read

Introduction
Flying with a baby requires planning, comfort, and confidence in the airline’s rules. For parents traveling on a budget, understanding the Spirit Airlines infant policy is essential to ensuring a smooth and stress-free journey. Spirit Airlines offers straightforward guidelines for infants, lap babies, child seating, diaper bags, and onboard safety, helping families travel with ease. This complete guide breaks down everything you need to know before booking your ticket, from age requirements to baggage limits, and offers helpful tips to make your trip more enjoyable.
Age Requirements and Eligibility for Infant Travel
Spirit Airlines allows infants as young as seven days old to fly, provided they meet the basic health criteria. According to the Spirit Airlines infant policy, children under two years old can travel on an adult’s lap at no additional ticket cost for domestic flights. This makes Spirit one of the more family-friendly options for budget-conscious parents looking to travel affordably.
However, parents should be aware that infants traveling internationally may require taxes and fees, even when traveling as lap babies. It’s important to confirm these details during booking so there are no unexpected charges at the airport. Spirit also requires proof of age, such as a birth certificate, to verify eligibility for infant status.
Types of Infant Seating Options on Spirit Airlines
While lap infants are permitted, some parents may prefer purchasing an additional seat for comfort, especially on longer flights. According to the Spirit Airlines infant policy, if you choose to purchase a seat for your baby, you must secure an FAA-approved car seat that fits the airline’s dimensions and safety guidelines.
Parents who prefer front-row or extra-legroom seats can select them during booking but must remember that car seats cannot be placed in exit rows or in seats that may obstruct the aisle. Choosing the right seat not only enhances comfort but also ensures compliance with airline regulations. For convenience, families are encouraged to bring essential baby items on board, especially when traveling with a lap infant. Spirit Airlines allows one Spirit Airlines baby bag at no extra cost, making it easier for parents to pack diapers, wipes, bottles, baby food, and comfort items needed throughout the flight.
Baggage Rules for Traveling with Infants
Many parents worry about packing limitations, but Spirit makes infant travel manageable. While standard bags require payment, the Spirit Airlines infant policy allows parents to bring a diaper bag for free, in addition to their own personal item. This diaper bag doesn’t count toward the standard baggage allowance.
Strollers and car seats are also checked free of charge, whether at the ticket counter or gate. These items can also be used within the airport until boarding, which is especially helpful for parents navigating long terminals or layovers.
Pre-Boarding, Boarding, and In-Flight Experience
Spirit Airlines offers pre-boarding for families with infants, giving parents extra time to get settled before the rush of general boarding. This small courtesy can make a big difference, especially when managing baby supplies, car seats, or strollers.
During the flight, the airline crew is trained to assist parents in storing car seats and accommodating essential infant needs. According to the Spirit Airlines infant policy, passengers are permitted to bottle-feed during takeoff and landing to help reduce pressure discomfort for infants. Bring enough formula or breast milk for the entire journey, as Spirit does not refrigerate or provide heating for baby bottles.
Tips for Hassle-Free Infant Travel with Spirit Airlines
Traveling with a baby can be seamless with the right strategy. Plan to arrive at least two hours early to allow time for check-in, stroller tagging, and security. Parents should pack essentials like extra diapers, a change of clothes, snacks, and toys in the diaper bag.
Another important tip is to choose flight timings around your baby’s sleep schedule when possible. Booking early morning or late-night flights can help infants sleep longer and reduce stress. Understanding the Spirit Airlines infant policy also helps parents prepare properly and avoid confusion at the airport.
Conclusion
Flying with an infant doesn’t have to be overwhelming, especially when you understand the Spirit Airlines infant policy clearly. From lap infant rules to seating options, diaper bag allowances, and in-flight comfort, Spirit Airlines provides helpful policies designed for smooth and budget-friendly travel. By planning ahead, utilizing the free infant baggage allowances, and choosing your seating wisely, you can ensure a safer, more enjoyable journey with your baby.
This complete travel guide empowers parents to fly confidently and comfortably. With the right preparation and a clear understanding of Spirit’s rules, your next family trip can be smoother, easier, and far more enjoyable.











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