strings

Flying with a double bass

A double bass case is far beyond overhead size; published paths are checked/cargo or a carrier-specific cabin-seat exception where the airline can secure it.

A strings instrument, representative of a double bass.

Cased dimensions

86 × 37 × 26 in (149.0 linear in), weight not published in source record, in a Stevenson standard double bass case.

Source: Stevenson Cases, accessed 2026-07-17.

What the law says

US air carriers must let a passenger carry a small musical instrument (violin, guitar, or other) into the cabin as carry-on if it fits safely in an overhead bin or under the seat and space is available at boarding. A larger instrument may be carried in the cabin if the passenger buys it a seat and the instrument plus case weighs no more than 165 pounds. An instrument may be checked if its outside linear dimensions (length + width + height, including the case) are 150 inches or less, within the carrier's weight rules. The statute states the limit as '165 pounds' and does not itself state a kilogram figure.

The checked-baggage limit is 150 linear inches; this instrument measures 149.0 in cased.

Does it fit?

A double bass against a cabin bin, to scale

Cabin-fit cross-section Too large for an overhead bin
Double bass cabin-fitmainline bin envelope · 45 × 20 in86 in long37 in
Cased envelope 86 × 37 × 26 in drawn to scale against a representative mainline overhead-bin envelope (45 × 20 in) and the under-seat comfort zone (34 × 13 in). Regional jets are smaller. A visualization of published dimensions, not a guarantee of fit.

Per airline

A double bass on each airline

AirlineVerdictWhat it means
Air France (EU) Extra seat A double bass is too large for an overhead bin. On Air France 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.
Alaska Airlines (US) Extra seat A double bass is too large for an overhead bin. On Alaska Airlines 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.
Allegiant Air (US) Extra seat A double bass 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.
American Airlines (US) Extra seat A double bass is too large for an overhead bin. On American Airlines 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.
Breeze Airways (US) Extra seat A double bass is too large for an overhead bin. On Breeze Airways 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.
British Airways (EU) Extra seat A double bass is too large for an overhead bin. On British Airways 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.
Delta Air Lines (US) Extra seat A double bass is too large for an overhead bin. On Delta Air Lines 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.
easyJet (EU) Extra seat A double bass is too large for an overhead bin. On easyJet 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.
Frontier Airlines (US) Checked only A double bass is too large for an overhead bin and Frontier Airlines publishes no cabin-seat option, so the published path is checked/cargo. The federal extra-seat right may still apply — confirm with the airline.
Hawaiian Airlines (US) Extra seat A double bass is too large for an overhead bin. On Hawaiian Airlines 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.
JetBlue (US) Extra seat A double bass is too large for an overhead bin. On JetBlue 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.
KLM (EU) Extra seat A double bass 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.
Lufthansa (EU) Extra seat A double bass is too large for an overhead bin. On Lufthansa 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.
Ryanair (EU) Extra seat A double bass is too large for an overhead bin. On Ryanair 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.
Southwest Airlines (US) Extra seat A double bass is too large for an overhead bin. On Southwest Airlines 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.
Sun Country Airlines (US) Checked only A double bass is too large for an overhead bin and Sun Country Airlines publishes no cabin-seat option, so the published path is checked/cargo. The federal extra-seat right may still apply — confirm with the airline.
United Airlines (US) Extra seat A double bass is too large for an overhead bin. On United Airlines 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.

Feedback

Did this answer your question?

One tap tells us whether this page actually helped.