Southwest Airlines Seat Selection Guide (2026)

Southwest does not assign seats. Boarding is open seating based on check-in order (A, B, C groups). Check in early for best seat choice.

Seat Selection Fees

Standard: No assigned seats — open seating. Preferred: N/A — choose any available seat when boarding. Extra Legroom: Exit rows available on first-come basis during boarding.

Free Seat Selection

No — Southwest does not assign seats. Boarding is open seating based on check-in order (A, B, C groups). Check in early for best seat choice.

Tips

  • Set an alarm for exactly 24 hours before departure and check in immediately
  • EarlyBird Check-In is worth it for popular routes — guarantees A or early B group
  • Families with children 6 and under board between A and B groups
  • If you get a C boarding position, aisle seats near the back are usually available
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