Global carriers are contending with surging jet fuel prices since the U.S.-Israeli strikes on Iran disrupted traffic through the Strait of Hormuz. WASHINGTON, May 2 (Reuters) - Bankrupt discount carrier Spirit Airlines ceased operations on Saturday, the industry’s first casualty linked to the Iran war, after failing to secure creditor support for a U.S. government bailout plan. The collapse of the carrier following a doubling in jet fuel prices during the two-month-old Iran war will cost