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Alaska

You can buy it a seat on this airline.

Alaska rules

  • A small instrument counts as your one carry-on bag and may exceed the normal carry-on dimensions if it fits safely in a cabin stowage compartment.
  • Large instruments can travel in the cabin in a purchased seat, under Alaska's cabin seat baggage policy.
  • Checked instruments must be in a case designed for that instrument, up to 165 lb.
  • Checked size limit is 150 linear inches on mainline flights (1 to 1999) and 115 on regional flights (2000 to 2999 and 3300 to 3499).
  • Oversize and overweight fees apply above 62 linear inches or 50 lb.

Source: alaskaair.com › Baggage › Musical instruments. Checked 10 Nov 2026.

Alaska instrument policy
  • 14 CFR 251.3: a small instrument must be accepted as carry-on if it can be stowed and space is available at boarding.
  • Alaska policy: small instruments may exceed carry-on dimensions if they fit a cabin stowage compartment.
https://www.alaskaair.com/content/travel-info/baggage/musical-instruments.aspx
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