For skiing, but needs to hold my speedflying gear as well (which is small) but Speed flying gear needs to go on plane and there is no sense in bringing 2 backpacks.
My two friends that fly couldn't offer recommendations as they just end up bringing extra bags.
I like to travel light and with as little as possible though, so I'm seeing if there are any recommendations out there.
I picked up the Mammut Nirvana Pro 35 for touring this winter as it offered more overall space and useful features than my old Dakine Pro 2. I have yet to fly with the Mammut pack, but it is smaller than a different Dakine pack that I also own and have flown several times with.
Ultimately, if you are just looking for a ski pack that can be used to transport your speedflying gear, you need to figure out your minimum capacity in liters or cubic inches and then find the best pack that suits your needs/budget/tastes. How much room does the gear take up/anything that you can directly compare the size against?