The escalating conflict in the Middle East is set to drive up travel costs for Hong Kong passengers as many are forced to opt for more expensive direct routes to Europe, according to analysts.They said on Monday that the suspension of major transit hubs in Dubai in the United Arab Emirates (UAE) and Doha in Qatar had left travellers scrambling for seats on direct flights or “conflict-free” paths to Europe, with surging demand set to trigger a spike in airfares.Global air travel has been...