hmm.. Only have 1 US Airways MC but am looking to start earning miles in other accounts using cards. It seems like now would be a great time to earn CO and UA miles with the merger. The only 2 CO offers that I saw was the chase debit card for 25K and the onePlus credit card with the 25K after initial purchase and the potential to earn more. Anyone tried both and just canceling the CC after the miles post and before the annual fee kicks in? PS Both of these need to be applied for before the end of the year or do you think the offers will extend?

Also, if you guys have any suggestions about other opportunites that would be great. I have never had a citi card and it seems like the best strategy starting from scratch would be to go for 2 personal 75K miles on the same day and the 75K business card as well.

I should probably look into the UA card deals too, to maximize the accounts combining once the merger is done.. what do you think?