If you have been travelling with some of below airlines, you can trace your lost luggage via the links, and follow the instructions:

 

Airline	Prefix	Link
Norwegian	DY	http://www.worldtracer.aero/filedsp/dy.htm
TAP Air Portugal	TP	http://www.worldtracer.aero/filedsp/tp.htm
Qatar Airways	QR	http://www.worldtracer.aero/filedsp/qr.htm

 

If you are travelling with another airline, not stated above, please contact: