I want to fly Boston -> Venice, stay there for awhile, then Venice-> Barcelona, stay for a few days, then Barcelona to Boston.
I have a minor heart problem that gets worse with lack of sleep so I want to book a business-class "lay flat" seat for the Boston-Venice leg so I can try to sleep, but I'd like to fly economy for the rest.
I'm a Delta frequent Flyer so I called Delta and they said that I had to book the WHOLE trip at business class rates to get that one leg at business class. That seemed ridiculous. Is it true and if so, why?
N.B. the goal here is not just to BOOK a mixed-fare trip - even Delta will let me do that - the goal is to save money over booking the whole thing as Business class.
Can I book a series of one-way flights or will the extra cost of one way wipe out any savings?
Thanks in advance.