Tha na prìsean air a bhith a 'dol suas le cosgaisean a thaobh goireasachd luchd-ceannach, mar eisimpleir, reic a-steach air itealain le companaidhean-adhair. Tha mòran companaidhean-adhair, mar Emirates, El Al, Singapore Airlines, Middle East Airlines, Ukraine International Airlines, Delta Airlines, agus Avianca, Ceist: Am faodadh iad atharrachadh gu mòr no gu beag?
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