Hi, never booked using aliance members, just rewards with the airline accrued. Is there a good resouce for determining how many miles (us, or ua) I would need to book an award ticket on sas. for example, if sas required 100 miles for a ewr to arn....and ua requires 150 miles for the same route...how many ua miles would i need to book on sas. I have been searching, but only confusing myself more. many thanks for any help.