Travelling with my 4.5 month old for the first time! We're flying to Europe on a 13 hour flight. What are do's and donts of flying with a 4 month old? Any tips much appreciated!

Since it is a long hour flight, I suggest you to book a night flight so your baby's sleep schedule at night won't be disturbed and both you and partner can rest well during flight. For 4 months old baby it is pretty manageable as they have not started in solids weaning. Thus, there is not much things to prepare (at least for solids/baby puree). Things to prepare for the flight - nursing cover if you are latching, portable steriliser for bottles if you are giving formula milk, 5-10 disposable diapers, baby blanket as it will be cold in plane, socks and jacket for baby, some toys e.g. cloth books and teether to occupy baby. You can latch baby/let baby suckle on milk bottle/pacifier during plane take off and landing to ease the baby's ears pressure.