I enjoy flying OS transatlantic and for years have often booked them as part of a UA ticket between the US and Europe. Starting 2 months ago, OS transatlantic flights no longer show up on the UA website when I try to book tickets for next year (mostly out of IAD). There are plenty of LH and LX flights, but no OS. Anyone know the cause and whether this is likely temporary or permanent (e.g., did OS somehow exit the transatlantic revenue sharing arrangement between UA and LH Group)? OS transatlantic tickets sold by OS for next year also seem priced much higher than similar flights sold by UA, LH. Just curious why the change.