Nej
Attuning to an item requires a creature to spend a Short Rest focused on only that item while being in physical contact with it (this can’t be the same short rest used to learn the item’s properties). This focus can take the form of weapon practice (for a weapon), meditation (for a wondrous item), or some other appropriate activity. If the Short Rest is interrupted, the attunement attempt fails. Otherwise, at the end of the Short Rest, the creature gains an intuitive understanding of how to activate any magical properties of the item, including any necessary Command words.
(sidan 137 Dungeon Master Guide ) och
A short rest is a period of downtime, at least 1 hour long, during which a character does nothing more strenuous than eating, drinking, reading, and tending to wounds.
(Sida 186 Spelarhandbok )
Eftersom flygningen är definitivt mer ansträngande än att äta / dricka, kan du inte lugna medan du flyger.