Because DUB is taken by Dublin airport! and in "x" in dxb is just a variable instead of the u.
because dublin airport is called dub
It is DXB.
Dubai International Airport (DXB / OMDB).
DXB is the international airport code for Dubai Airport and CCJ the international code for Calicut Airport
Dubai International Airport (airport code DXB)
Dubai International Airport
Drawing Interchange Binary(a code of Dubai international airport)
4,287 miles Dubai International Airport (DXB) to Ninoy Aquino International Airport (MNL)
7,540 air miles (Dubai Intl Arpt, Dubai, AE (DXB) to Portland Intl Arpt, Portland, OR (PDX).
The flight time from London Heathrow Airport to Dubai International Airport is about 6 hours, 50 minutes.
Dubai International Airport: DXBDubai Al Mactum International Airport: DWC (a new airport officially opened in June 2010 and now fully operational)
DUBAI --------- DXB Dammam ------ DMM
Dubai International Airport (DXB) is located in the Garhood area of Dubai. Department of Civil Aviation Dubai International Airport PO Box 2525, Dubai, UAE Telephone +971-4-2162525 or +971-4-2166333. There is a new international airport under construction in the Jebel Ali area which will be know as Al Maktoum International Airport and will be the largest airport in the world.