Southwest Airlines sells US low-cost airline flying domestic and near-international routes, known for free checked bags. We confirmed Klarna and Flex Pay by Upgrade here.
At checkout or on the store’s financing page, choose Klarna or Flex Pay by Upgrade.
Each one runs its own check. The cards above show which use a soft check and which can affect your credit.
Compare the plans and the total cost, then accept only if the total works for you.
Questions about Southwest Airlines financing
Does Southwest Airlines offer financing?
Yes. We confirmed Klarna and Flex Pay by Upgrade at Southwest Airlines on Nov 12, 2026. Options can change, so check at checkout before you buy.
Will checking my rate at Southwest Airlines affect my credit score?
Klarna Pay in 4 uses a soft credit check, which does not affect your score. Monthly financing needs a credit check when you apply, and the loan may be reported to credit bureaus.
Can I use Klarna in a Southwest Airlines store?
We checked online shopping at Southwest Airlines only. If the store has physical locations, ask there whether financing is available.
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