One of the London Executive planes they regularly travel on was involved in a fatal crash with both people on board killed.
Sullivan said the fact he and Gold were not on the doomed flight was simply down to 'Lady Luck'.
Gold and Sullivan have ploughed a small fortune of their own wealth into their beloved club.
At first they poured some of their personal wealth in to rescue the club from the disastrous Icelandic regime which almost left the Hammers in administration and more recently in the hope of pushing it on to the next level.
'It really puts things into perspective'
Sullivan spends his summers and the January transfer window working up to 14 hours a day pursuing new players.
And the pair, alongside Karren Brady, battled tirelessly to ensure their bid for the Olympic Stadium was successful as they attempt to break into the Premier League elite.
But even Dimitri Payet's equaliser against the Mackems failed to stir much emotion in Sullivan after it had sunk in just how fortunate he and his partner Gold had been.
Sullivan told West Ham's official website football simply pales into insignificance.
"I would say we've flown on that plane about 50 times," Sullivan revealed to whufc.com.
"We still managed to make it to Sunderland via another flight but when we heard what had happened, it really put everything into perspective.
"Although the team did fantastically to fight back from two goals down to maintain our unbeaten away form, our overriding thoughts really were for the two people killed when the plane crashed.
"Our deepest condolences go out to the friends and families of those affected by this tragedy. It was simply down to Lady Luck that we were not on that plane as well."