In the title compound, C₂₀H₂₂N₂O₃S, the oxazoline ring is planar (r.m.s. deviation = 0.045 Å) and forms dihedral angles of 47.24 (8) and 10.11 (8)° with the S- and C-bound phenyl rings, respectively. The nitro group lies to the same side of the molecule as the oxazoline ring but is orientated so as not to interact with the ring. Linear supramolecular chains along [010] are formedviaC—H...O and C—H...S contacts. Chains are consolidated into a three-dimensional architecture by C—H...π and van der Waals interactions.