Originally Posted by Pilot37

Where are you looking at these possible flights because while it is very obvious the Iberia is just a codeshare on a BA plane (they have tagged their code on the BA flight). The BA218 from Denver to Heathrow on April 16th 2022 leaves Denver at 4.30pm (local time) and lands at Heathrow at 8.30am the following morning (local time) and is currently scheduled to be operated by a B787 according to BA’s booking app. So in summary, there is only 1 direct flight a day operated by a Oneworld airline between Denver and Heathrow and that is by BA - so I’d suggest booking direct on their website.

Pilot37