FlyerTalk Forums - View Single Post - Can I use CR1 to upgrade CO HNL-DEN flight?
Old Dec 2, 2011 | 4:29 pm
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goalie
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Correct as to UDU not being valid on PS flights but the agent was wrong as to not being able to use a CR1. CR1's, miles, miles plus co-pay and SWU's are all valid ways to upgrade on PS flight
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