Travel Insurance Direct - Annual Multi Trip has an exclusion
"10. A loss that arises from BASE jumping,parachuting, sky diving, hang gliding,
parapenting or travel in an air supported device other than as a passenger in a licensed passenger aircraft operated by an
airline or charter company. This does not apply to hot air ballooning or parasailing."
It looks like you are not covered as a pilot
Most business travel insurance policies that I have looked at exclude flying on non scheduled flights.