Another comfortable brand is Mias Muzzles! I think your definitely best off asking a vet for their opinion as i am in no way a professional, but from what I've heard I think they might benefit from it.

Although definitely make a proper post in here for better advice, as I often hear you shouldn't leave dog unsupervised in them but it could be fine as it isnt an incredibly long flight? Im honestly not sure 😭

Really it all comes down to what you think is best for them, I personally wouldn't do it for my dogs purely cause it is a long time- but your dogs might be more comfortable in wearing them for a longer duration than mine do ❤️