Originally Posted by
IAH_1K
Check CO search engine. I was easily able to redeem F award (75k pp each way) from IAH to Islamabad. You need to get to BKK and then ISB. Getting to BKK can be through Europe (I am doing IAH-FRA-LHR-BKK-ISB in early Nov '11 - still trying to get the direct flight from FRA to BKK but no luck yet).
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I assume you want to go to BKK, and not just going there to get to ISB on the ticket? It's a great fare for 75k pp, but a looooong way to go just to make the routing work! (though it is in F)