Southwest Airlines Baggage Policy 2026

Southwest's famous Bags Fly Free policy — 2 free checked bags for every passenger on every fare.

Quick Summary

• Carry-on: 24 × 16 × 10 in — free on ALL fares (larger than Delta/United/AA)
• Personal item: 17 × 13 × 8 in — always free
• 1st & 2nd checked bags: FREE for every passenger
• 3rd bag: $75 | Overweight (51–70 lbs): $75 additional
• No Basic Economy — all fares include carry-on + 2 free checked bags

Related: Southwest vs American comparison · Carry-On Size Checker · Track your Southwest flight