July Carry On: 21.7 x 15.2 x 8.5 in
carry-on, hardside, 4 spinner wheels, 7.5 lb empty. Exterior figures are the maker's own, wheels and handles included.
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 Carry On fit? All 19 airlines
21.7 x 15.2 x 8.5 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 approved0.8 in to spare | No |
| Southwest Airlines | 24 x 16 x 10 | Cabin approved0.8 in to spare | not published |
| Sun Country Airlines | 24 x 16 x 11 | Cabin approved0.8 in to spare | No |
| Allegiant Air | 22 x 16 x 10 | Tight squeeze0.3 in to spare | No |
| British Airways | 22 x 18 x 10 | Tight squeeze0.3 in to spare | No |
| Lufthansa | 21.65 x 15.75 x 9.06 | Gate check0.1 in over | No |
| Turkish Airlines | 21.65 x 15.75 x 9.06 | Gate check0.1 in over | No |
| Air Canada | 21.5 x 15.5 x 9 | Gate check0.2 in over | No |
| Emirates | 21.65 x 14.96 x 8.66 | Gate check0.2 in over | not published |
| Ryanair | 21.65 x 15.75 x 7.87 | Gate check0.6 in over | No |
| Alaska Airlines | 22 x 14 x 9 | Gate check1.2 in over | not published |
| American Airlines | 22 x 14 x 9 | Gate check1.2 in over | No |
| Avelo Airlines | 22 x 14 x 9 | Gate check1.2 in over | No |
| Delta Air Lines | 22 x 14 x 9 | Gate check1.2 in over | not published |
| Hawaiian Airlines | 22 x 14 x 9 | Gate check1.2 in over | not published |
| JetBlue Airways | 22 x 14 x 9 | Gate check1.2 in over | No |
| United Airlines | 22 x 14 x 9 | Gate check1.2 in over | No |
| Air France | 21.7 x 13.8 x 9.9 | Gate check1.4 in over | No |
| Qatar Airways | 19.69 x 14.57 x 9.84 | Gate check2 in over | not published |
Bag spec source: july.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.
July states suitcase dimensions in centimeters on its official product pages, giving both an External dimensions including wheels figure (the overall airport sizer measurement) and a separate Internal dimensions excluding wheels figure, which is usable packing space rather than a body only exterior measurement. All figures below are converted to inches at cm divided by 2.54, rounded to 1 decimal, and weights are converted from kg at kg times 2.20462, rounded to 1 decimal.
All 11 July bags
