How long would you wait before you travel with an infant?

My daughter is 3 weeks old and my husband and I are planning on going to Israel to stay with our families/relatives for the summer. We live in Seattle now. I was wondering is it safe to travel with an infant this early and any tips on traveling this far with her?|||Well I'll be traveling with my son just shy of him being 3 months. The tricks I was told so that the pressure doesn't bother his ears for take off and landing is to have them either nursing or bottle feeding or give them a pacifier to suck on. And also call the airline you plan on traveling on to find out their rules.|||you should wait because on a plane it is going to bother her ears and she might start crying if she isn't sleep. but there is a trick i don't know if it works they say if you put two cups on her ears.. well i don't know