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Thread: Most Challenging Routes for UDU Success?
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Old Dec 8, 2010 | 1:22 am
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Boghopper
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Originally Posted by bryanwallace
any advice on which routes one should avoid as a　1k looking for free dom upgrades and usually buying the cheap fares??
SFO-IAD seems to have gotten a lot tougher with the advent of UDU. SFO-ORD is really variable. Sometimes it seems like every GS in California is on the plane, but I've had good luck with the 747s.
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