You can book your reservation with a Lap Child online for both domestic and international travel--as long as you are not purchasing your reservation with Rapid Rewards® points. For redemption bookings or to add a Lap Child to an existing reservation, you may call us at 1-800-I-FLY-SWA®. To book your reservation with a Lap Child, follow the online booking instructions below to book a reservation with a Lap Child:

1. Select your city pair(s) and travel date(s).
2. In the "Passengers" field, indicate the total number of seats needed by selecting the number of adults and lap children.
3. Proceed through the "Select Flight" and "Trip & Price Details" pages.
4. Complete the “Who’s Flying” name fields for each Passenger. If multiple adults and/or lap children are traveling, use the drop down next to the Lap Child’s information to associate the Lap Child with an adult Passenger.

Note: Once a Lap Child has been added to a reservation, you will need to call us at 1-800-I-FLY-SWA or see a Southwest® Customer Service Agent at the airport to make any changes to the reservation.

When traveling on a partner itinerary, a seat must be purchased for any children fourteen (14) days old and younger than two (2) years old.

Learn more about our Lap Child policy.