I got an initial quote from air treks.com for an RTW: ($3081-$4281)
Kuwait>Sanaa>Asmara>Sanaa>Instanbul>Tbilisi>Moscow>Tallin>Stockholm>NYC> Guatemala City>San Salvador
Travel time start early next year over a 7 month period. A Star Alliance RTW apparently wants the starting city to be the final destination. That would cause 2 extra flights over the Atlantic.
Kuwait>Sanaa>Asmara>Sanaa>Instanbul>Tbilisi>Moscow>Tallin>Stockholm>NYC> Guatemala City>San Salvador
Travel time start early next year over a 7 month period. A Star Alliance RTW apparently wants the starting city to be the final destination. That would cause 2 extra flights over the Atlantic.