Level8 Gibraltar Aluminum 20" Carry-On: 22 x 15 x 8.4 in
20" carry-on, hardside, 4 spinner wheels, 10 lb empty. Exterior figures are the maker's own.
Cabin approved at 5 of 19 airlines
The table below shows the verdict at every airline, best fit first, using the same math as the live fit checker. For why so many carry-ons fail the US standard box, see our 22 x 14 x 9 breakdown.
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Does the Gibraltar fit? All 19 airlines
22 x 15 x 8.4 in against each airline's published carry-on box, largest side to largest side, sorted best fit first.
| Airline | Cabin max (in) | Verdict | Under seat |
|---|---|---|---|
| Frontier Airlines | 24 x 16 x 10 | Cabin approved1 in to spare | No |
| Southwest Airlines | 24 x 16 x 10 | Cabin approved1 in to spare | not published |
| Sun Country Airlines | 24 x 16 x 11 | Cabin approved1 in to spare | No |
| Allegiant Air | 22 x 16 x 10 | Tight squeeze0 in to spare | No |
| British Airways | 22 x 18 x 10 | Tight squeeze0 in to spare | No |
| Emirates | 21.65 x 14.96 x 8.66 | Gate check0.4 in over | not published |
| Lufthansa | 21.65 x 15.75 x 9.06 | Gate check0.4 in over | No |
| Turkish Airlines | 21.65 x 15.75 x 9.06 | Gate check0.4 in over | No |
| Air Canada | 21.5 x 15.5 x 9 | Gate check0.5 in over | No |
| Ryanair | 21.65 x 15.75 x 7.87 | Gate check0.5 in over | No |
| Alaska Airlines | 22 x 14 x 9 | Gate check1 in over | not published |
| American Airlines | 22 x 14 x 9 | Gate check1 in over | No |
| Avelo Airlines | 22 x 14 x 9 | Gate check1 in over | No |
| Delta Air Lines | 22 x 14 x 9 | Gate check1 in over | not published |
| Hawaiian Airlines | 22 x 14 x 9 | Gate check1 in over | not published |
| JetBlue Airways | 22 x 14 x 9 | Gate check1 in over | No |
| United Airlines | 22 x 14 x 9 | Gate check1 in over | No |
| Air France | 21.7 x 13.8 x 9.9 | Gate check1.2 in over | No |
| Qatar Airways | 19.69 x 14.57 x 9.84 | Gate check2.3 in over | not published |
Bag spec source: level8cases.com · accessed 2026-07-09. Airline limits come from each carrier's official baggage page; open an airline above for its citations. Policies change, so verify a borderline case before you fly.
Level8 labels its own product page dimensions as "Overall" size, and the brand's own how-to-measure-luggage blog post explicitly confirms this overall figure includes the wheels and handles, not just the case body, for both the Voyageur and Luminous Textured (Elegance) lines. The Gibraltar aluminum carry-on's single published dimension set is not explicitly labeled as body-only or wheels-inclusive on any page checked, so it is recorded here as unconfirmed rather than assumed.
All 9 Level8 bags
