So here is what I am looking for...

My Girlfriend is from Israel, and she is going home to visit mom.
I would like to go and visit with her, but her ticket is on a sold out flight, so I need to purchase a ticket. I am cheep, and would like to know the cheepest city to fly from in the US or Canada as a departing city. More than likely, I can do better flying to another airport and leaving from there then flying from Detroit.

Can someone suggest a departure city to chack flight rates?
From somewhere to Tel Aviv, or another city in Israel would work.

Thank you in advance.