KLM: flying with a musical instrument
KLM allows a small 55 x 35 x 25 cm instrument in the cabin, an extra seat up to 45 kg (with Embraer height limits), and hold carriage up to 45 kg.
Cabin / carry-on
Hand baggage if it fits 55 x 35 x 25 cm and ≤12 kg (Economy) or ≤18 kg (Business); carrying it forfeits any additional hand baggage.
Extra seat
For instruments up to 45 kg, book an extra seat; max height 140 cm (122 cm on European Embraer aircraft, except cellos). Own seat and instrument seat booked together via the Contact Centre.
Checked
May replace one checked bag; 32-45 kg or over 300 cm needs a reservation ≥48 h ahead; above 45 kg KLM will not transport it (use cargo).
Source
KLM — Special baggage (musical instruments)
Allowed as hand baggage if it fits 55 x 35 x 25 cm and weighs up to 12 kg (Economy) or 18 kg (Business). For instruments up to 45 kg an extra seat can be booked; max instrument height 140 cm (122 cm on European Embraer aircraft, except cellos). Above 45 kg KLM will not transport it. Own seat and instrument seat must be booked together via the Customer Contact Centre.
https://www.klm.com/information/baggage/special-baggage — KLM, accessed 2026-07-09 · last reviewed 2026-07-09
Per instrument
How each instrument fares on KLM
| 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 fits KLM's published cabin allowance in most cases; confirm against the exact cabin-bag limit on the airline page. |
| 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 KLM 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 fits KLM's published cabin allowance in most cases; confirm against the exact cabin-bag limit on the airline page. |
| Ukulele (concert) | Cabin likely | A ukulele (concert) in its case fits KLM's published cabin allowance in most cases; confirm against the exact cabin-bag limit on the airline page. |
| 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 fits KLM's published cabin allowance in most cases; confirm against the exact cabin-bag limit on the airline page. |
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