The ornamental design for a luggage handle, as shown and described.
FIG. 1 shows a front perspective view of a luggage handle, the luggage handle shown on a luggage case;
FIG. 2 shows a front elevation view of a luggage handle of FIG. 1;
FIG. 3 shows a rear elevation view of a luggage handle of FIG. 1;
FIG. 4 shows a right elevation view of a luggage handle of FIG. 1;
FIG. 5 shows a left elevation view of a luggage handle of FIG. 1;
FIG. 6 shows a top view of a luggage handle of FIG. 1; and,
FIG. 7 shows a bottom view of a luggage handle of FIG. 1.
The evenly spaced broken lines are for the purposes of illustrating environment. The dot-dashed broken lines illustrate the bounds of the claim. None of the broken lines form any part of the claimed design.