Yes I know there are other variables but 25%? That's nuts. I realise there's supply and demand, however we're two people who can be taken out of the "demand" section. Interestingly, though, we did get very reasonable prices on a flight to New York - but it was 75% more to fly to MCO
via the same airport.
I don't believe that, after all the taxes etc. have been paid at this end, a 3-hour domestic US flight costs 75% of the cost of a transatlantic flight including all those taxes and fees...
Incidently, it would have only cost us another 35% of the London-New York flight to book the two flights separately (even with the same airline, on the same flights!) - the same thing the airline wanted 75% for! - but by the time I had drawn this, rather bonkers, conclusion, we were sorted with NYC as our holiday for this year with very nice flight prices - at a weekend, in the school holidays
You're right about it being supply and demand - people demand flights to MCO. Because BA and Virgin are still charging insane prices, more people are looking direct so I'm guessing the indirect airlines have figured this one out and reckon they can make a substantial "bonus" on selling two connecting flights together....(and chances are - they're right - I'd never bothered to check before and probably have paid "the package premium" on my last 3 or 4 trips

)