Sorry for an old thread bump.
We're travelling with an infant internationally and will be bringing the Doona. The infant will not have her own seat on the flights - lap child/Bassinet on Lufthansa.
A few questions: since she won't have her own seat, can the Doona be carried on and stowed overhead?
If I have to gate check any concerns with throwing your $500 stroller in the cargo hold? It looks Doona sells a travel bag - but it seems somewhat bulky to bring along and lug around through the airport.
Any Doona airport/airplane tips/tricks you can share?