Originally Posted by
chriskfla
I could use some advice. I was about to book 3 business class seats between DTW and CDG this coming July. They were $2140 each for months. Today they are now about $4500 each. Hardly anyone is on the flights. They must have gone up on 12/1 or when 2 add'l seats were taken. What are the least expensive cities typically to find lower priced business class flights to CDG or London? Is ExpertFlyer the best way to search? Thanks.

For summer travel, business class sales usually happen in March prior. A fare of about $2100 rt sounds about right for TATL travel in July - September.
I suggest you wait until early next year and check fares again.