✈️ TravelSmarter
Southwest Airlines

Southwest Airlines Checked Baggage Fee Calculator

Southwest Airlines includes 2 checked bags free on every fare.

Want the full report? Get a PDF with the per-bag breakdown and tips to avoid fees on Southwest Airlines — free.

Southwest Airlines baggage fees at a glance

1st bag (free)Free
2nd bag (free)Free
Weight limit50lb per bag

51-70lb: ~$75-100 extra. These are approximate, typical fees — airlines change baggage pricing frequently, so always confirm on Southwest Airlines's website before booking.

Frequently asked questions

How much does a checked bag cost on Southwest Airlines?

Southwest Airlines includes 2 checked bags free on every fare — no fee for the first 2.

What is the weight limit for checked bags on Southwest Airlines?

Southwest Airlines's standard checked bag weight limit is 50lb. 51-70lb: ~$75-100 extra.

Is it cheaper to add a checked bag online or pay at the airport for Southwest Airlines?

Adding a checked bag during booking or online check-in is almost always cheaper than paying at the airport counter or gate — airport fees are typically higher across nearly all airlines, including Southwest Airlines.

Does Southwest Airlines include a free checked bag with Basic Economy or the lowest fare?

Yes — Southwest Airlines includes checked bags free on every fare tier, with no restriction by fare class.