Looking at 2 RT tickets in premium economy EWR-LHR in August. I can currently buy United flights on the Lufthansa website $360 cheaper (per person) than buying direct on the United site. Any downside to booking via Lufthansa? These are the cheapest tickets I've seen thus far beating any other airline on the route.
I have no status on either airline. I haven't bought premium economy on any airline before and usually don't purchase this far out for economy, but the PE cabins are small and I'm presuming (maybe wrongly) that prices won't drop much and I should grab the tickets now.