Rising tensions between the U.S., Israel, and Iran have disrupted global air routes and forced the closure of major regional hubs, triggering a sell-off in travel-related stocks and casting a shadow over the sector. Shares of cruise line operators experienced significant declines: Norwegian Cruise Line dropped approximately 11%, Carnival Corporation fell about 7%, Royal Caribbean declined 3%, and Viking Holdings decreased roughly 5%. The Cruise Lines International Association stated that operators have currently suspended routes in the Middle East. Ships are being rerouted, and operations are being coordinated with security authorities to ensure the safety of passengers and crew. A spokesperson for Norwegian Cruise Line indicated the company is monitoring the conflict in Iran and the broader region. However, as its vessels are not operating in the affected areas of the Middle East, no direct impact is anticipated. Nevertheless, Norwegian Cruise Line, which had previously forecast weak profits for 2026, warned of uncertainty regarding this year's fuel costs due to escalating geopolitical tensions. Amid the flight disruptions caused by the heightened Middle East situation, shares of U.S. airlines also declined.