Originally Posted by
family friend
By everyone's comments I take it that upgrades are not as common on CO as AA for domestic itineraries?
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To caveat, the answer is "Yes" out of EWR, as it is a major hub and elite-heavy. Upgrades are rare for EWR-LAX, SFO, and SEA. I've gotten upgrades easily for PDX or flights from PHL-IAH.