Booking Travel

Required traveler information.

To reduce wait times at the airport, we highly recommend that you enter your required valid passport information online at® prior to travel. You can do so during the booking process or post-booking at, during the online check-in process, or at the airport on your day of travel using a kiosk or at the Southwest Airlines Ticket Counter. You will be required to present your valid passport in addition to other required documentation at the airport on the day of travel.

Entry into the United States: The U.S. government is requiring anyone traveling into the United States to provide COVID-19-related documentation and contact tracing information. Learn more about travel requirements here.

Taxes & fees for lap children.

Infants between 14 days and under two years of age can travel on international flights as either a lap child or in an FAA-approved car seat with the purchase of an infant fare. If you plan to travel with an infant as a lap child, you will be required to pay the taxes and fees that apply to the international portion of the infant’s itinerary. The taxes and fees must be paid prior to travel at the Southwest Airlines Ticket Counter or by calling 1-800-I-FLY-SWA (1-800-435-9792). All Southwest Airlines forms of payment are acceptable for lap children tickets with the exception of Southwest LUV Vouchers.

No unaccompanied minors.

Minors under the age of 18 are not permitted to fly unaccompanied on international flights or any itinerary that includes an international flight. If a minor is traveling with an adult over the age of 18, they must be listed on the same flight itinerary.

Three forms of payment per purchase.

A maximum of three forms of payment per passenger may be used to purchase an international itinerary. One credit card or PayPal account may be used in conjunction with other accepted forms of payment including Southwest® gift cards, Southwest Airlines LUV vouchers, and/or flight credits. All forms of payment may not be accepted at all locations. Cash may be accepted in some international locations at the Southwest Airlines Ticket Counter. PayPal is only accepted at

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Taxes & fees for international flights.

Government-imposed taxes and fees on Southwest’s international flights (approximately $73 to $107) are typically much higher than the government-imposed taxes and fees on our domestic U.S. flights (approximately $11 to $25). Like all airlines, Southwest must include these taxes and fees as part of the overall fare quote at the time of purchase. But rest assured, we will do all we can to keep our portion of the air fare as low as possible.

Customers traveling between the U.S. and Belize, Cuba, Grand Cayman or Mexico may be exempt from certain taxes if applicable criteria are met. For example, Mexican citizens and Mexican residents are exempt from the Mexico Tourism Tax (UK); children under the age of 12 are exempt from the Belize Conservation Tax (FU) and Belize Ticket Tax (BZ); Belizean citizens and Belizean residents are exempt from the Belize Conservation Tax (FU) and Belize Airport Development fee (BU); and children under the age of 12 are exempt from the Cayman Islands Departure Tax (KY) and Cayman Islands Security Tax (SU).

If you believe you are entitled to a refund of any international tax, please submit a refund request.