I'm flying to SE Asia with a layover in frankfurt. I was thinking about trying to find a cheap flight from Frankfurt to visit Israel and Egypt over a 7-10 day period. Is it possible to visit these two countries in this period of time and hit the main highlights? Is there any reason to go to Egypt or Israel before the other country? I know Israel doesn't stamp passports at the airports anymore, but will I have any problem moving between the two countries via flight?