Hybrid flexible (HyFlex) teaching, which is assumed as a much more flexible and learner-centered instruction mode, has received great attention from educators and researchers in recent years. In HyFlex learning and teaching environment, learners can make decisions on how they attend lessons i.e., face-to-face in a real classroom, online synchronously, or asynchronously after the allotted real lesson time. The present chapter aims to introduce HyFlex teaching as a new digital pedagogical and technological approach to the mode of instruction in relation to the foreign language learning and teaching field. In addition, this chapter discusses the benefits of EFL teaching in HyFlex classroom environments along with some challenges and possible solutions proposed by instructors in the light of the current relevant literature and empirical research. Furthermore, HyFlex teaching can promote equal, inclusive, and accessible learning conditions for all students regardless of their diverse backgrounds are addressed, in turn fostering foreign language learning and teaching processes.