Originally Posted by
decillion
Looking to go somewhere mid-December for Polaris experience at the saver mileage rate.
Look for flights where they're offering Premium Economy tickets. Every UA plane with Premium Economy also has the Polaris hard product, so UA will try hard to avoid swaps to the old configuration on those planes.
Remember that you can access the Polaris Lounge at EWR even if you have a connection to your Polaris-equipped flight, so you could consider something like EWR-IAD-BRU.
My answer to "where to go" is "wherever you find saver space." Sadly, that may not be easy to do...