Where are you going? Are they for food or hatching? The one thing is you’ll need to be prepared that they may say you need to dispose of the eggs before boarding the plane (even if they say it’s okay on the phone). The people letting you through often aren’t the same people answering phone calls. If they are for eating I’d peel them before going. Shells are sharp, and they may see shells as something that could harm others on the flight.