Allegiant Air: flying with a musical instrument
Allegiant has no dedicated instrument page; its Contract of Carriage (Articles 46 and 60) governs a specific bulkhead-window extra seat and generous checked carve-outs.
Cabin / carry-on
A small instrument that fits under the seat rides as the personal item; larger cabin carriage requires the Article 46 extra-seat mechanism.
Extra seat
Article 46: cased instrument secured in the first window seat aft of a floor-to-ceiling bulkhead; a seat must be purchased. No weight limit stated for the extra-seat case.
Checked
Article 60: no oversize charge up to 126 linear in, no excess-weight fee up to 165 lbs.
Source
Allegiant — Contract of Carriage (Art. 46, 60)
Art. 46: an instrument that does not fit under the seat may be carried in the cabin if cased, a seat is purchased, and the instrument is secured in the first window seat aft of a floor-to-ceiling bulkhead. Art. 60: checked instruments get no oversize charge up to 126 linear inches and no excess-weight fee up to 165 lbs.
https://www.allegiantair.com/contract-carriage — Allegiant Air, accessed 2026-07-09 · last reviewed 2026-07-09
Per instrument
How each instrument fares on Allegiant Air
| Instrument | Verdict | What it means |
|---|---|---|
| 61-key portable keyboard | Gate-check risk | A 61-key portable keyboard in its case often fits a mainline overhead bin but is a real gate-check risk on full flights and regional jets. Board early; if the bin is full it may be gate-checked. |
| Alto saxophone | Cabin likely | A alto saxophone in its case is small enough to stow in an overhead bin or under the seat. US federal law (49 U.S.C. §41724) gives you the right to carry it on if it fits and space is available at boarding. |
| Banjo | Gate-check risk | A banjo in its case often fits a mainline overhead bin but is a real gate-check risk on full flights and regional jets. Board early; if the bin is full it may be gate-checked. |
| Cello (4/4) | Extra seat | A cello (4/4) is too large for an overhead bin. On Allegiant Air the standard path is a purchased extra seat (the statute's cabin-carriage right, up to 165 lb, where the airline sells one) — see the airline's seat-position and weight rules. It may also be checked within the 150-linear-inch limit. |
| Dreadnought acoustic guitar | Gate-check risk | A dreadnought acoustic guitar in its case often fits a mainline overhead bin but is a real gate-check risk on full flights and regional jets. Board early; if the bin is full it may be gate-checked. |
| Electric guitar (gig bag) | Gate-check risk | A electric guitar (gig bag) in its case often fits a mainline overhead bin but is a real gate-check risk on full flights and regional jets. Board early; if the bin is full it may be gate-checked. |
| Parlor / travel acoustic guitar | Gate-check risk | A parlor / travel acoustic guitar in its case often fits a mainline overhead bin but is a real gate-check risk on full flights and regional jets. Board early; if the bin is full it may be gate-checked. |
| Trumpet | Cabin likely | A trumpet in its case is small enough to stow in an overhead bin or under the seat. US federal law (49 U.S.C. §41724) gives you the right to carry it on if it fits and space is available at boarding. |
| Ukulele (concert) | Cabin likely | A ukulele (concert) in its case is small enough to stow in an overhead bin or under the seat. US federal law (49 U.S.C. §41724) gives you the right to carry it on if it fits and space is available at boarding. |
| Viola | Gate-check risk | A viola in its case often fits a mainline overhead bin but is a real gate-check risk on full flights and regional jets. Board early; if the bin is full it may be gate-checked. |
| Violin (4/4) | Cabin likely | A violin (4/4) in its case is small enough to stow in an overhead bin or under the seat. US federal law (49 U.S.C. §41724) gives you the right to carry it on if it fits and space is available at boarding. |
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