Can u breastfed on a plane? or does it have to be express/formula?

How do u know if bubs has just got 'wind' or if its somthing more like colic or reflux. Izzy gets really bad wind, poor lil thing, and i have no idea what to do for her, its been the last couple of days shes get particuliarly more unsettled - generally in the afternoon.

She's not a vomiting baby, she just won't settle... will fed then burb go to sleep in my arms, but as soon as i put her down she is back awake (i leave her for as long as i can handle her crying, before i pick her up agian - about 10mins) But as soon as shes back in my arms shes back asleep... Is this because i'm spoiling her or she prefers to sleep upright???