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Thread: SWU Upgrade cleared on over-water part. Can I apply it to other part of the itin?
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Old Jun 19, 2010 | 3:04 pm
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wilp888
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You definitely can apply the SWU to the domestic portion of your itinerary without losing IAD-LHR but whether it will increase your chance for the upgrade on SEA-IAD inside the UDU window is anybody's guess.
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