Another strategy is to book from your M&M account. Get a Barclays M&M Mastercard and also transfer miles from SPG. That way you can don't have to wait until inside 14 days which in reality is more like 4-5 days (if at all) for most gateways. It's 85,000 one way and with the strength of the USD, YQ is now reasonable. Taxes/fees on yesterday's FLR-FRA-DEN flight were only $313 using M&M. Even if seats were available on UA.com, the kettle fees/taxes would have been $153 and 25,000 more miles.