Originally Posted by
GUWonder
ARN/CPH-FRA-LHR-US has worked in April for US citizens who are exempted from the Schengen bans against non-EEA persons and were supposedly heading to the US via the UK. Why wouldn't they just go from FRA to the US? Don't ask me.
Maybe they wanted to fly oneworld (BA/AA) rather than *A (LH/UA).