Originally Posted by
ryanm
I just tried a dummy booking in F and it said it was not eligible for mileage accrual if purchased with Pay with Miles. Got the same message for both A and full F fares.
It's not for booking in first and using pay with miles, it is for booking economy, and then paying the difference using miles to get first class. It's a new feature for DL. The Points Guy had a post on it today. However the T&C do make it seem as if it should be any first class fare using pay with miles.
Might be a nice way to help with a MR. If you can find a route with a cheap A fare, you could use miles to offset the cost and get50% MQM bonus, and improve your cpm in terms of MQM accrual. You definitely lose out on RDMs, but with most people getting a 2.5x 2.75x multiplier on RDMs, you can probably recoup a lot of what you spent.