Thule Aion Travel Backpack 40L vs Thule Landmark 40L
The Thule Aion Travel Backpack 40L is 40L and 1.4kg3.1lb; the Thule Landmark 40L is 40L and 1.4kg3.1lb. They weigh the same. The Thule Aion Travel Backpack 40L costs $9 less. The Thule Aion Travel Backpack 40L fits the carry-on limit of 30 of 36 major airlines and the Thule Landmark 40L fits 14; under the seat, 0 and 0 of 26.
| Spec | Thule Aion Travel Backpack 40L | Thule Landmark 40L |
|---|---|---|
| Price | $210Best | $219 |
| Volume | 40L | 40L |
| Weight | 1.4kg3.1lb | 1.4kg3.1lb |
| Carry-on compliance | 83%Best | 39% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 52×33×23cm20.5×13×9in | 55×33×25cm21.5×13×10in |
| Laptop | 17"Best | 16" |
| Bottle pockets | 1 | 1 |
| Compression straps | 0 | n/a |
| Warranty | Lifetime | Lifetime |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Hideable |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | Waxed 600D recycled polyester canvas | 420D Dobby polyester, bluesign approved |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Thule Aion Travel Backpack 40L | Thule Landmark 40L |
|---|---|---|---|
| Air Canada | Carry-on | Fits | Too big |
| AirAsia | Carry-on | Fits | Too big |
| Alaska Airlines | Carry-on | Fits | Too big |
| American Airlines | Carry-on | Fits | Too big |
| Cebu Pacific | Carry-on | Fits | Too big |
| Delta Air Lines | Carry-on | Fits | Too big |
| JetBlue Airways | Carry-on | Fits | Too big |
| Lufthansa | Carry-on | Fits | Too big |
| Norwegian Air Shuttle | Carry-on | Fits | Too big |
| Qantas | Carry-on | Fits | Too big |
| SAS | Carry-on | Fits | Too big |
| Turkish Airlines | Carry-on | Fits | Too big |
| United Airlines | Carry-on | Fits | Too big |
| Vietjet Air | Carry-on | Fits | Too big |
| WestJet | Carry-on | Fits | Too big |
| Wizz Air | Carry-on | Fits | Too big |
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Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.