I use kayak.
the main difference (drawback) between direct and indirect, is that going indirect, you'll need to depart Orlando around 2pm-ish, instead of 7 to 9pm going direct.
flight departing later than 2 or 3pm will either be almost as expensive as going direct, or will include a very long layover (sometines 12hrs+)
also, you'll arrive in Orlando quite late. Some flights arrive at 11pm or even midnight.
flights with a 5pm arrival are otfen almost as expensive as direct flights. (it relates to a 3:30 or 4pm arrival on a direct flight, due to immigration being cleared at your stopover airport in the US)
to be honest, I'm currently checking flight prices for myself out of LGW, and even if VA or BA are rather expensive, there is not enough price difference to go for indirect (taking connection times and departure/arrival times)
We discussed this with my wife, and here's what we settled upon : arriving at 7pm on the first day, and departing at 2pm on our last day, like we used to do, is not worth the £100pp we would need to spend to arrive at 3:30pm on our first day and taking off at 9pm on our last day.
on a £8k trip, £100pp (£300 for 3 of us) is just 3.7% of our trip's value. That's basically what we get back through quidco (overall)
so when is a saving not a saving ? As far as we're concerned, that's more florida time for us, and it's worth a couple of hundred quids more.
On paper, going indirect is a good way to save money. But is it worth it ? that's a good question.
If the price difference is less than £75pp between direct and indirect, I would not consider indirect.
my $.02
