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Thread: Using miles to upgrade on CO codeshare?
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Old Apr 11, 2011 | 12:26 am
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BOB W
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Originally Posted by RandomTaiwanese
As of right now, I have some credits from CO from a canceled ticket. I am thinking of using it to exchange for domestic tickets on for me and my parents for SFO-ORD-LAX.

Chances are I will be buying a CO codeshare UA flight. I also want to use miles to upgrade them to F

Questions:
1. Will I be able to use UA miles to upgrade the flight?
2. If I am required to use CO miles, will I need to pay for co-pay?

(I am 1P on UA and nobody on CO)
SFO-ORD-LAX

Could you not drive quicker? Or is this about more miles?
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