Is it permissible to exchange the value of baggage or excess weight tickets (US$1,0) allocated to the seconded employee for an 'Umrah ticket, if they are not used for shipping luggage via air travel?

The permissibility of using a "baggage voucher" or "excess weight allowance" for the purpose of 'Umrah depends on the system of the issuing entity:

If the entity grants these vouchers as a form of ownership, then they may be used for any purpose the owner deems fit. However, if the entity designates them for a specific purpose (such as transporting baggage), then they may not be used for anything else, such as 'Umrah.