Southwest Airlines payment plans: buy now, pay later

Yes. Laters.com is a Singapore travel agent licensed by the Singapore Tourism Board and is the merchant for the booking. The e-ticket itself is issued by Southwest Airlines, and you can verify the booking directly with the airline using the booking reference on the e-ticket.

Yes, once ticketed. The booking reference on the e-ticket works in Southwest's own Manage Reservations tool for seats, bags and check-in, which opens 24 hours before departure. Payment and any refund still run through Laters.com and the pay-later provider, not through the airline.

Not directly, at most airline checkouts, which is exactly why this gets searched. On Laters.com every airline we ticket, including Southwest Airlines, can be booked now and paid later, so what determines availability is your country and basket, not the airline itself.

Your ticket and travel plans are not automatically canceled, but the missed payment has consequences. Late fees are set by the pay-later provider, not by Southwest Airlines or Laters.com, and a missed instalment can be reported to credit reference agencies. Contact the provider directly if you expect to miss a payment, since arrangements vary by plan.

The payment plan sits with the pay-later provider, not with the airline, so cancelling doesn't erase what's owed automatically. Southwest itself charges no cancellation fee on any fare, so the airline side of a cancellation costs nothing; any refund due flows back through the provider to adjust the remaining instalments.

Yes. If Southwest cancels the flight, or you cancel at least 10 minutes before scheduled departure, the refund runs 100% back through the pay-later provider rather than paid straight to you. The provider applies it against any instalments still outstanding and adjusts future payments accordingly.

Yes. Loyalty accrual is tied to your Rapid Rewards membership number on the booking, not to how the ticket was paid for, so points still count toward A-List or A-List Preferred status whether you pay in full or use a pay-later plan. Add your Rapid Rewards number when booking, or through Manage Reservations afterward.

Southwest charges for checked bags regardless of how the ticket is paid for. On tickets issued from 9 April 2026, the first checked bag is $45 each way for a standard bag under 50 lb, with the second bag priced separately. Choosing a pay-later plan on Laters.com doesn't change this fee, since it's set and collected under the airline's own baggage rules.

Yes, Southwest charges for a paid seat upgrade, ranging from $4 to $250 per segment depending on the seat and route. That charge is part of the fare total run through checkout, so if it's included in your booking when you choose a pay-later plan, it's covered by the same instalments as the rest of the fare. Check Southwest Airlines flights on Laters.com for current seat options at booking.

Not at southwest.com, but yes on Laters.com. Afterpay is the pay-later option most often used for Southwest Airlines bookings through Laters.com, ahead of Zip, Affirm and Klarna, and all four show at checkout when available in your country.

It depends on your credit. Southwest's own Flex Pay, run by Upgrade, needs a $150 minimum purchase, is not offered to residents of Iowa, West Virginia or D.C., and carries an APR of 0% to 36% based on your credit -- 0% has only been offered in limited promotional windows. Compare that against Laters.com's own interest-free options, such as Afterpay or Klarna Pay in 4, before choosing.