As of 1 January 2013, the USPTO will be offering reduced price searches for PCT applications filed by small and micro-entities. The cost of the International Search Report will be $2080 for regular entities, $1040 for small entities and $520 for micro-entities.
The current fee charged by the Israel Patent Office for International Search Reports is NIS 3500 which is currently slightly less than the US fee for small entities, but the dollar is sliding against the Shekel and the Israel patent office traditional updates its fees on 1st January and on 1st June so the fee for regular entities is cheaper in Israel, for small entities is the same in both jurisdictions and for micro-entities is cheaper in the United States. It is not unlikely that the Israel Patent Office and other patent offices will also offer a ISR fees on a sliding scale.
Note: the choice of examination authority can effect using the patent processing highway (PPH) and also the cost of national phase entry in both Israel and the US, so it is advised to consult with a competent patent attorney before first filing a provisional or regular application in the US or a regular filing in Israel, and which route to take for the PCT, or indeed, whether to use the PCT system at all.