nwoody2001That's interesting. I've just used Expedia to book flight only on the dates you selected. The cheapest was Swiss via Zurich (BHX08:45 FRA13:20) £139.29 return without checked bags including all taxes.
Scrolling down through next two cheapest Brussels Airlines and KLM then Lufthansa 09:00 departure £171.09 return rules as Swiss. They're also offering deals to add Hotel, so it doesn't seem that bad to me.