Is there a good reason you're doing DFW-SEA-DFW not DFW-ANC-DFW? And also why JFK-ORD-MCO, not JFK-DFW-MCO? (just off the top of my head - you might be able to do better than DFW for the intermediate point)

I assume you're avoiding LHR for APD reasons, but even so, you can do a lot better for "HEL-HKG in four segments".

For example (and I guess this can be improved on): hel-mad-dme-amm-hkg