The Air Transport Users Council (AUC) has published a report on mishandled baggage*.
Carrier
No. of passengers enplaned
No. of bags missing per 1,000 passengers
Rank (bags missing per 1,000 passengers)
British Airways
45,554,351
23.0
1
TAP Air Portugal
7,463,113
21.0
2
Lufthansa
54,266,920
18.1
3
Air France
55,148,558
16.6
4
Alitalia
25,536,440
16.5
5
KLM
22,684,094
16.4
6=
Luxair
551,696
Iberia
33,667,918
15.5
8
LOT Polish Airlines
3,896,300
14.8
9
Finnair
7,615,517
14.2
10
Austrian
10,947,227
13.8
11
SAS Scandinavian
27,074,911
13.3
12
SN Brussels Airlines
2,466,351
12.7
13
Croatia Airlines
1,569,433
11.8
14
CSA Czech Airlines
5,560,864
10.8
15
Swiss International Airlines
11,340,159
10.0
16
Icelandair
1,820,983
9.8
17
Adria Airways
1,013,588
9.6
18
Spanair
10,560,417
9.5
19
Malev Hungarian Airlines
3,212,164
8.9
20
Tarom Romanian Airlines
842,092
8.3
21
Air One
6,025,926
8.1
22
Turkish Airlines
17,095,547
4.7
23
Air Malta
1,979,615
4.4
24
* This table includes only the twenty-four airlines that are members of the Association of European Airlines.