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Southwest Airlines Hand Luggage & Cabin Bag Size 2026 (Carry-On Rules)

Flag of the United States Southwest AirlinesUnited States
24 in 16 in 10 in
  • No limitcarry-on weight
  • 100 Whper power bank (1 allowed)
  • See rulesliquid containers
Cabin bag drawn to scale from Southwest Airlines' published limit.

Quick answer

Cabin bag: 24 x 16 x 10 in (61 x 41 x 25 cm) incl. wheels/handles; weight: No weight limit stated. Personal item: 1 personal item under seat (purse, briefcase, laptop case, backpack).

Source: support.southwest.com, checked 6 Nov 2026

  • Carry-on bag size

    24 x 16 x 10 in (61 x 41 x 25 cm) incl. wheels/handles

    Source: support.southwest.com, checked 6 Nov 2026

  • Carry-on weight

    No weight limit stated

    Source: support.southwest.com, checked 6 Nov 2026

  • Personal item

    1 personal item under seat (purse, briefcase, laptop case, backpack)

    Source: support.southwest.com, checked 6 Nov 2026

  • Power banks

    From 20 Apr 2026: max 1 power bank per customer, ≤100 Wh, cabin only; not in overhead bin (keep in personal item under seat); no charging from in-seat power; must be visible (not in a bag) while in use

    Source: support.southwest.com, checked 6 Nov 2026

  • Liquids

    TSA 3-1-1

    Source: support.southwest.com, checked 6 Nov 2026

  • Vapes and e-cigarettes

    Cabin only; not in checked luggage

    Source: support.southwest.com, checked 6 Nov 2026

  • Lighters and matches

    Not in checked luggage (TSA rules for cabin)

    Source: support.southwest.com, checked 6 Nov 2026

How much can my Southwest Airlines carry-on weigh?

No weight limit stated.

Source: support.southwest.com, checked 6 Nov 2026

Can I take a power bank on Southwest Airlines?

From 20 Apr 2026: max 1 power bank per customer, ≤100 Wh, cabin only; not in overhead bin (keep in personal item under seat); no charging from in-seat power; must be visible (not in a bag) while in use.

Source: support.southwest.com, checked 6 Nov 2026

Power bank rules for every airline

What liquids can I take on Southwest Airlines?

TSA 3-1-1.

Source: support.southwest.com, checked 6 Nov 2026

Can I take a vape on Southwest Airlines?

Cabin only; not in checked luggage.

Source: support.southwest.com, checked 6 Nov 2026

Can I take a lighter on Southwest Airlines?

Not in checked luggage (TSA rules for cabin).

Source: support.southwest.com, checked 6 Nov 2026