** Shares of cruise operators fall amid selloff in travel stocks following Israel's attack on Iran
** Israel's large-scale strikes across Iran pushed oil prices higher and prompted airlines to avoid airspace over Israel, Iran, Iraq and Jordan
** Carnival Corp's CCL.N shares plunge ~5% in early trading, while Norwegian Cruise Line Holdings NCLH.N falls ~4%
** Shares of Royal Caribbean Group RCL.N and Viking Holdings VIK.N fall about 3% each
** As fuel is a major expense, a sustained rise in oil prices from Middle East tensions would hurt operating profits, says Alex Fasciano, analyst with CFRA Research
** Adds, RCL and NCLH actively hedge fuel costs while CCL does not, expect CCL to be most impacted by a significant and sustained rise in oil prices
(Reporting by Anuja Bharat Mistry in Bengaluru)
((AnujaBharat.Mistry@thomsonreuters.com))