The design is the visual features of the FLARED FRONT FAIRING END CAP shown in solid lines in the drawings, whether those features are features of one of shape, configuration, ornament or pattern or are a combination of any of these features. The drawings show two variants. Figures 1-7 show the first variant, Figures 8-14 show the second variant, which is mirrored symmetrical to the first variant. The features of the drawings shown with broken lines form no part of the design.Drawings of the design are included wherein:Figure 1 is a left side perspective view of a first variant of the design suitable for use on a left side of a vehicle;Figure 2 is a right side perspective view of the design of Figure 1;Figure 3 is a left side elevational view of the design of Figure 1;Figure 4 is a front elevational view of the design of Figure 1;Figure 5 is a right side elevational view of the design of Figure 1;Figure 6 is a top plan view of the design of Figure 1;Figure 7 is a bottom plan view of the design of Figure 1;Figure 8 is a right side perspective view of a second variant of the design suitable for use on a right side of a vehicle;Figure 9 is a left side elevational view of the design of Figure 8;Figure 10 is a right side elevational view of the design of Figure 8;Figure 11 is a front elevational view of the design of Figure 8;Figure 12 is a left side elevational view of the design of Figure 8;Figure 13 is a top plan view of the design of Figure 8; andFigure 14 is a bottom plan view of the design of Figure 8.