The present study aims to demonstrate three noteworthy applications of infrared thermography for the assessment of fatigue damage, both in quantitative and qualitative terms. The capability of thermography-based techniques for non-destructive evaluation is well established. However, the potential benefits of using these methods for condition monitoring continue to attract attention due to the possibility of performing low-cost inspections using compact micro-bolometric infrared (IR) sensors. In particular, this work demonstrates the reliability of temperature fluctuations as parameters for Structural Health Monitoring of bonded, smooth, and holed specimens using both a microbolometric and cooled IR cameras. This approach allows the rapid assessment of damage levels in these composites associated with specific stiffness conditions, the detection of off-axis cracks, the estimation of reduction in elastic properties, and the amount of damaged areas.