Okay, this sounds more complicated than it is. I think.
We're flying Tulsa - Rome next year. I want to fly British Air, I want to fly business class on the way over, and premium economy on the way back. So far, so good. I can do this on the BA website, at a price we are comfortable with.
However, I would like to break the return trip at London; fly Rome to London, then the next day, London to Tulsa. This can be done if we choose the "multi-city" option. However, if we choose multi-city, we do not have the opportunity to mix classes. It's either business both ways, or premium economy both ways.
And to make it a little harder, if we try to select flights using the multi-city option, the screens do not show the cost of the flights as you select them; you have to wait until they calculate the total. On a round trip screen, you can see the prices for the different flights.
The main reason I want to stop in London is to avoid getting home so late. Most flights from Rome to Tulsa, especially the ones whose price I find attractive, get in anywhere from 10:30 pm on. I'd much rather take a flight out of London that gets in about 7:30 or so.
There is one flight Rome - Tulsa that gets in at a decent hour, but it's more expensive. In fact, premium economy on that flight is higher than business class on a later flight.
Has anybody figured out how to mix flight classes on a multi-city flight on British Air?
Thanks for your help.