Our customers regularly fly with all of our backpack models and consistently report that staff at the airport rarely measure or weigh the bag on-site—much like standard carry-on luggage. However, airlines do have official guidelines.
Based strictly on official dimensions, the PeakStone Backpack in sizes Small and Medium meets many airlines’ standards for in-cabin pet carriers. Larger models, such as the MountainRock Backpack or the Dachshund Backpack from size Medium upwards, are technically a few centimeters over the official limits (for example, the MountainRock M is at least 2 cm too deep).
To be completely safe, we recommend checking directly with your airline before your trip to confirm their exact size restrictions and requirements for taking your pet on board.
