I use the half-and-half SPD/platform pedals on my Birdy. Most of the time when I fly I don't end up bringing the bike shoes, but if I'm riding around home or it's going in the car I will.
I have to take the pedals off every time I fly with it. I just bring along a Park Tools pedal wrench in the suitcase. I have no other need to remove the pedals.
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Countries I've ridden in: US, Canada, Ireland, UK, Germany, Netherlands, France, China, Singapore, Malaysia
States I've ridden in: Illinois, Connecticut, Massachusetts, Pennsylvania, California, Nevada, Missouri, Colorado