  The modern field of quantum communication thrives on promise to deliver
efficient and unconditionally secure ways to exchange information by exploiting
quantum laws of physics. Here, quantum teleportation stands out as an exemplary
protocol allowing for the disembodied and safe transfer of unknown quantum
states using quantum entanglement and classical communication as resources. The
experimental feasibility of quantum teleportation with propagating waves,
relevant to communication scenarios, has been demonstrated in various physical
settings. However, an analogous implementation of quantum teleportation in the
microwave domain was missing so far. At the same time, recent breakthroughs in
quantum computation with superconducting circuits have triggered a demand for
quantum communication between spatially separated superconducting processors
operated at microwave frequencies. Here, we demonstrate a realization of
deterministic quantum teleportation of coherent microwave states by exploiting
two-mode squeezing and analog feedforward over macroscopic distances $d =
42\,$cm. We achieve teleportation fidelities $F = 0.689 \pm 0.004$ exceeding
the no-cloning $F_\mathrm{nc} = 2/3$ threshold for coherent states with an
average photon number of up to $n_\mathrm{d} = 1.1$. Our results provide a key
ingredient for the teleportation-based quantum gate for modular quantum
computing with superconducting circuits and establish a solid foundation for
future microwave quantum local area networks.
