Southwest Airlines Infant Policy

Southwest Airlines Infant Policy: Traveling with an infant can feel overwhelming, especially for first-time parents. From documentation to seating arrangements, every detail matters when flying with a baby. Southwest Airlines understands these concerns and offers a family-friendly infant policy designed to make air travel easier and more comfortable for parents and caregivers. Knowing the Southwest Airlines Infant Policy in advance can help you plan your journey with confidence and avoid last-minute surprises at the airport.

This comprehensive guide explains Southwest’s rules for infants traveling on domestic and international flights, including age limits, seating options, ticketing, documentation, and helpful tips for parents.

Definition of an Infant on Southwest Airlines

Southwest Airlines defines an infant as a child under two (2) years of age on the date of travel. Infants can travel either as a lap infant or in their own purchased seat, depending on the parent’s preference.

Once a child turns two, they must occupy their own seat and travel on a paid ticket.

Lap Infant Policy

Southwest Airlines allows infants under two years old to travel as lap infants.

One lap infant is permitted per adult passenger
The infant must sit on the adult’s lap during the flight
Lap infants do not require a purchased seat
Only applicable to children under two years of age

While traveling with a lap infant is cost-effective, parents should consider comfort and safety, especially on longer flights.

Ticketing for Lap Infants

Although lap infants do not require a paid seat, they still need to be added to the reservation.

Lap infants can be added during booking or after ticket purchase
Parents must indicate infant-in-arms during check-in
Boarding passes for lap infants may be issued at the airport

Failing to add the infant to the reservation may cause delays at check-in or boarding.

Infant with a Reserved Seat

Parents who prefer additional space may choose to purchase a separate seat for their infant.

A full fare ticket is required
The infant must be secured in an FAA-approved child restraint system (CRS)
Car seats must meet federal safety guidelines
The CRS must fit within the aircraft seat dimensions

This option provides more comfort and safety, especially during turbulence.

Approved Child Restraint Systems

Southwest Airlines permits the use of approved child safety seats.

Must be FAA-approved
Should display appropriate safety labeling
Must be installed according to manufacturer instructions
Booster seats are not permitted for infants

Using an approved car seat can significantly improve safety and comfort during the flight.

Infant Age Verification and Documentation

Southwest may require proof of age for infants, particularly if the child appears close to two years old.

Accepted documents include:

Birth certificate (original or copy)
Passport
Government-issued documentation

For international travel, infants must have a valid passport and meet all destination entry requirements.

Infant Policy for International Flights

Southwest Airlines operates limited international routes, and infant policies may vary slightly.

Lap infants on international flights may be subject to taxes and fees
A valid passport is required for international travel
Visa and entry requirements must be met
Proof of age may be requested at check-in

Parents should review international travel requirements well in advance of departure.

Seating and Boarding with Infants

Southwest Airlines does not assign seats, but families traveling with infants receive special boarding privileges.

Family Boarding occurs after Group A and before Group B
Applies to adults traveling with children age six or under
Allows families to find seats together more easily

Early boarding helps parents settle in comfortably and install car seats if needed.

Baggage Allowance for Infants

Southwest Airlines offers generous baggage benefits for travelers with infants.

One stroller and one car seat can be checked free of charge
Items can be checked at the ticket counter or gate
Diaper bags do not count toward carry-on limits
Standard carry-on rules apply to adult passengers

This policy makes traveling with baby gear more convenient and cost-effective.

Strollers and Car Seats at the Gate

Parents may gate-check strollers and car seats.

Items are tagged at the gate
Strollers are returned at the destination gate or baggage claim
Protective covers are recommended to prevent damage

Gate-checking allows parents to use strollers throughout the airport.

In-Flight Amenities for Infants

Southwest Airlines does not provide bassinets on its aircraft. However, the airline strives to accommodate families whenever possible.

Flight attendants assist with warming bottles (when permitted)
Extra napkins and water may be provided
Parents should bring necessary infant supplies onboard

Bringing essential items such as formula, diapers, and baby food is strongly advised.

Safety Rules for Infants

For safety reasons, Southwest Airlines enforces specific rules:

Infants cannot sit in exit rows
Lap infants must be held securely during taxi, takeoff, and landing
Only one lap infant per adult passenger is allowed
A seatbelt extension is not provided for lap infants

Following these guidelines ensures a safer flight for everyone onboard.

Traveling with Twins or Multiple Infants

For adults traveling with more than one infant:

Only one infant may travel as a lap child
Additional infants must have purchased seats
Approved child restraint systems are required

This rule applies regardless of whether the infants are twins or siblings.

Tips for Flying with an Infant on Southwest

To make your journey smoother:

Choose early flights to align with nap schedules
Bring extra diapers and clothing
Feed infants during takeoff and landing to ease ear pressure
Arrive early to allow extra time for check-in and security

Planning ahead can greatly reduce travel stress.

Final Thoughts

The Southwest Airlines Infant Policy is designed to support families by offering flexible, affordable, and parent-friendly travel options. With choices between lap infants and reserved seating, free checked baby gear, and family boarding privileges, Southwest makes flying with infants more manageable. By understanding age requirements, documentation rules, and seating options, parents can focus less on logistics and more on enjoying their journey.

Whether you’re taking your baby on their first flight or traveling with an infant regularly, Southwest Airlines provides a welcoming and accommodating experience for families.